{"id":3681,"date":"2025-04-11T10:19:17","date_gmt":"2025-04-11T01:19:17","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=3681"},"modified":"2025-04-11T10:19:19","modified_gmt":"2025-04-11T01:19:19","slug":"%e3%80%90php-8%e3%80%91match%e3%81%a7%e5%ae%9f%e7%8f%be%e3%81%99%e3%82%8b%e9%ab%98%e9%80%9f%e3%83%bb%e7%b0%a1%e6%bd%94%e3%81%aa%e3%82%b3%e3%83%bc%e3%83%89%e5%ae%9f%e8%a3%85-7%e3%81%a4%e3%81%ae","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=3681","title":{"rendered":"\u3010PHP 8\u3011match\u3067\u5b9f\u73fe\u3059\u308b\u9ad8\u901f\u30fb\u7c21\u6f54\u306a\u30b3\u30fc\u30c9\u5b9f\u88c5 &#8211; 7\u3064\u306e\u5b9f\u7528\u4f8b\u3068\u5b8c\u5168\u30ac\u30a4\u30c9"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">PHP match\u3068\u306f\uff1f\u521d\u5fc3\u8005\u3067\u3082\u308f\u304b\u308b\u57fa\u672c\u6982\u5ff5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">PHP 8\u3067\u8ffd\u52a0\u3055\u308c\u305f\u9769\u65b0\u7684\u306a\u6a5f\u80fdmatch\u306e\u6982\u8981<\/a>      <\/li>      <li>        <a href=\"#i-2\">\u5f93\u6765\u306eswitch\u6587\u3068\u306e\u6c7a\u5b9a\u7684\u306a\u9055\u3044<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-3\">match\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u306e\u74b0\u5883\u8981\u4ef6<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-7\">match\u306e\u57fa\u672c\u69cb\u6587\u3068\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-8\">match\u306e\u6b63\u3057\u3044\u66f8\u304d\u65b9\u3068\u57fa\u672c\u69cb\u6587<\/a>      <\/li>      <li>        <a href=\"#i-9\">\u7c21\u5358\u306a\u5b9f\u88c5\u4f8b\u3067\u7406\u89e3\u3059\u308bmatch\u306e\u4f7f\u3044\u65b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-14\">\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04\u306b\u6cbf\u3063\u305fmatch\u306e\u66f8\u304d\u65b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-20\">\u5f93\u6765\u306eswitch\u6587\u304b\u3089match\u3078\u306e\u79fb\u884c\u30ac\u30a4\u30c9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-21\">switch\u6587\u306e\u554f\u984c\u70b9\u3068match\u306b\u3088\u308b\u89e3\u6c7a\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-26\">\u65e2\u5b58\u306eswitch\u6587\u3092match\u306b\u66f8\u304d\u63db\u3048\u308b\u5177\u4f53\u7684\u306a\u624b\u9806<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-30\">\u4e92\u63db\u6027\u3092\u4fdd\u3061\u306a\u304c\u3089\u6bb5\u968e\u7684\u306b\u79fb\u884c\u3059\u308b\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-35\">match\u3092\u6d3b\u7528\u3057\u305f7\u3064\u306e\u5b9f\u7528\u7684\u306a\u30b3\u30fc\u30c9\u4f8b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-36\">\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306b\u57fa\u3065\u304f\u30e1\u30c3\u30bb\u30fc\u30b8\u8868\u793a\u306e\u5b9f\u88c5<\/a>      <\/li>      <li>        <a href=\"#i-37\">\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u306e\u691c\u8a3c\u3068\u51e6\u7406\u306e\u52b9\u7387\u5316<\/a>      <\/li>      <li>        <a href=\"#i-38\">\u914d\u5217\u30ad\u30fc\u306e\u5b58\u5728\u78ba\u8a8d\u3068\u5b89\u5168\u306a\u30a2\u30af\u30bb\u30b9\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-39\">\u65e5\u4ed8\u3084\u6642\u9593\u306b\u57fa\u3065\u304f\u6761\u4ef6\u5206\u5c90\u306e\u7c21\u7565\u5316<\/a>      <\/li>      <li>        <a href=\"#i-40\">\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\u306b\u57fa\u3065\u304f\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u306e\u5b9f\u88c5<\/a>      <\/li>      <li>        <a href=\"#i-41\">\u591a\u8a00\u8a9e\u5bfe\u5fdc\u30b5\u30a4\u30c8\u3067\u306e\u8a00\u8a9e\u5207\u308a\u66ff\u3048\u51e6\u7406<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-42\">\u8a2d\u5b9a\u5024\u306b\u57fa\u3065\u304f\u30b5\u30fc\u30d3\u30b9\u5207\u308a\u66ff\u3048\u306e\u67d4\u8edf\u306a\u5b9f\u88c5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-43\">match\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-44\">match\u3068switch\u6587\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03<\/a>      <\/li>      <li>        <a href=\"#i-48\">match\u3092\u4f7f\u7528\u3057\u305f\u969b\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-53\">\u9ad8\u8ca0\u8377\u74b0\u5883\u3067\u306ematch\u306e\u52b9\u679c\u7684\u306a\u4f7f\u3044\u65b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-58\">match\u5f0f\u306e\u9ad8\u5ea6\u306a\u4f7f\u3044\u65b9\u3068\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-59\">\u8907\u96d1\u306a\u6761\u4ef6\u3092\u6271\u3046\u305f\u3081\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u6226\u7565<\/a>      <\/li>      <li>        <a href=\"#i-63\">match\u3068null\u5408\u4f53\u6f14\u7b97\u5b50\uff08??\uff09\u306e\u7d44\u307f\u5408\u308f\u305b\u6d3b\u7528\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-67\">match\u3068\u578b\u5ba3\u8a00\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u5805\u7262\u306a\u30b3\u30fc\u30c9\u8a2d\u8a08<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-72\">match\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-73\">match\u3067\u9665\u308a\u304c\u3061\u306a\u4e00\u822c\u7684\u306a\u30df\u30b9\u3068\u5bfe\u7b56<\/a>      <\/li>      <li>        <a href=\"#i-78\">\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u3092\u9ad8\u3081\u308bmatch\u306e\u4f7f\u3044\u65b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-83\">\u30c1\u30fc\u30e0\u3067\u306e\u958b\u767a\u306b\u304a\u3051\u308bmatch\u306e\u7d71\u4e00\u7684\u306a\u4f7f\u7528\u30eb\u30fc\u30eb<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-87\">PHP\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306b\u304a\u3051\u308bmatch\u306e\u6d3b\u7528\u4e8b\u4f8b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-88\">Laravel\u3067\u306ematch\u5f0f\u306e\u52b9\u679c\u7684\u306a\u4f7f\u7528\u4f8b<\/a>      <\/li>      <li>        <a href=\"#i-93\">Symfony\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067match\u3092\u5c0e\u5165\u3059\u308b\u30dd\u30a4\u30f3\u30c8<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-97\">WordPress\u30d7\u30e9\u30b0\u30a4\u30f3\u958b\u767a\u3067\u306ematch\u306e\u6d3b\u7528\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-102\">PHP 8.1\u4ee5\u964d\u306e\u62e1\u5f35\u6a5f\u80fd\u3068match\u306e\u5c06\u6765\u5c55\u671b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-103\">PHP 8.1\u3067\u8ffd\u52a0\u3055\u308c\u305fmatch\u95a2\u9023\u306e\u6539\u5584\u70b9<\/a>      <\/li>      <li>        <a href=\"#i-108\">\u4eca\u5f8c\u306ePHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306e\u4e88\u5b9a\u3055\u308c\u3066\u3044\u308b\u62e1\u5f35\u6a5f\u80fd<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-111\">\u4ed6\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3068\u306e\u6bd4\u8f03<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">PHP match\u3068\u306f\uff1f\u521d\u5fc3\u8005\u3067\u3082\u308f\u304b\u308b\u57fa\u672c\u6982\u5ff5<\/h2>\n\n\n\n<p>PHP 8\u306e\u767b\u5834\u306b\u3088\u3063\u3066\u3001\u591a\u304f\u306e\u9b45\u529b\u7684\u306a\u65b0\u6a5f\u80fd\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u304c\u3001\u305d\u306e\u4e2d\u3067\u3082\u7279\u306b\u6ce8\u76ee\u3059\u3079\u304d\u6a5f\u80fd\u306e\u4e00\u3064\u304c\u300cmatch\u5f0f\u300d\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001match\u5f0f\u306e\u57fa\u672c\u304b\u3089\u5fdc\u7528\u307e\u3067\u3001\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">PHP 8\u3067\u8ffd\u52a0\u3055\u308c\u305f\u9769\u65b0\u7684\u306a\u6a5f\u80fdmatch\u306e\u6982\u8981<\/h3>\n\n\n\n<p>match\u5f0f\u306f\u3001PHP 8.0\u3067\u5c0e\u5165\u3055\u308c\u305f\u65b0\u3057\u3044\u5236\u5fa1\u69cb\u9020\u3067\u3001\u6761\u4ef6\u306b\u57fa\u3065\u3044\u3066\u7570\u306a\u308b\u5024\u3092\u8fd4\u3059\u4ed5\u7d44\u307f\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u7279\u306b\u5f93\u6765\u306eswitch\u6587\u306e\u554f\u984c\u70b9\u3092\u89e3\u6c7a\u3057\u3001\u3088\u308a\u5b89\u5168\u3067\u7c21\u6f54\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u3051\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ match\u5f0f\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\n$status = 404;\n\n$message = match($status) {\n    200 =&gt; 'Success',\n    404 =&gt; 'Not Found',\n    500 =&gt; 'Server Error',\n    default =&gt; 'Unknown status'\n};\n\necho $message; \/\/ \u51fa\u529b: Not Found\n<\/pre>\n\n\n\n<p>match\u306f\u300c\u5f0f\u300d\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u305f\u3081\u3001\u4e0a\u8a18\u306e\u3088\u3046\u306b\u76f4\u63a5\u5909\u6570\u306b\u7d50\u679c\u3092\u4ee3\u5165\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u6761\u4ef6\u5206\u5c90\u306e\u30ed\u30b8\u30c3\u30af\u304c\u3088\u308a\u7c21\u6f54\u306b\u306a\u308a\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>match\u5f0f\u306e\u4e3b\u306a\u7279\u5fb4\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f0f\u30d9\u30fc\u30b9\u306e\u8a55\u4fa1\uff1a\u7d50\u679c\u3092\u76f4\u63a5\u5909\u6570\u306b\u4ee3\u5165\u53ef\u80fd<\/li>\n\n\n\n<li>\u53b3\u5bc6\u306a\u6bd4\u8f03\uff1a\u6761\u4ef6\u306e\u8a55\u4fa1\u306b\u306f <code>===<\/code> (\u53b3\u5bc6\u306a\u6bd4\u8f03)\u3092\u4f7f\u7528<\/li>\n\n\n\n<li>\u8907\u6570\u6761\u4ef6\u306e\u7c21\u6f54\u306a\u8a18\u8ff0\uff1a\u30ab\u30f3\u30de\u533a\u5207\u308a\u3067\u8907\u6570\u306e\u6761\u4ef6\u3092\u6307\u5b9a\u53ef\u80fd<\/li>\n\n\n\n<li>\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u306a\u3057\uff1a\u5e38\u306b\u6700\u521d\u306b\u30de\u30c3\u30c1\u3057\u305f\u6761\u4ef6\u306e\u7d50\u679c\u306e\u307f\u3092\u8fd4\u3059<\/li>\n\n\n\n<li>\u5fc5\u9808\u306edefault\u51e6\u7406\uff1a\u4e00\u81f4\u3059\u308b\u6761\u4ef6\u304c\u306a\u304f\u3001default\u3082\u306a\u3044\u5834\u5408\u306f\u4f8b\u5916\u3092\u30b9\u30ed\u30fc<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u5f93\u6765\u306eswitch\u6587\u3068\u306e\u6c7a\u5b9a\u7684\u306a\u9055\u3044<\/h3>\n\n\n\n<p>match\u3068switch\u306f\u4e00\u898b\u4f3c\u3066\u3044\u307e\u3059\u304c\u3001\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u9069\u5207\u306a\u72b6\u6cc1\u3067\u3088\u308a\u52b9\u679c\u7684\u306b\u4f7f\u3044\u5206\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<div id=\"id-b8277052-69cd-4856-8865-247495833466\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u5fb4<\/th><th>match\u5f0f<\/th><th>switch\u6587<\/th><\/tr><\/thead><tbody><tr><td>\u6bd4\u8f03\u65b9\u6cd5<\/td><td>\u53b3\u5bc6\u6bd4\u8f03 (<code>===<\/code>)<\/td><td>\u7de9\u3084\u304b\u306a\u6bd4\u8f03 (<code>==<\/code>)<\/td><\/tr><tr><td>\u69cb\u6587\u30bf\u30a4\u30d7<\/td><td>\u5f0f\uff08\u5024\u3092\u8fd4\u3059\uff09<\/td><td>\u6587\uff08\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\uff09<\/td><\/tr><tr><td>\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc<\/td><td>\u306a\u3057<\/td><td>\u3042\u308a\uff08<code>break<\/code>\u3092\u5fd8\u308c\u308b\u3068\u767a\u751f\uff09<\/td><\/tr><tr><td>\u8907\u6570\u6761\u4ef6<\/td><td><code>200, 300 =&gt; 'OK'<\/code><\/td><td>\u8907\u6570\u306e <code>case<\/code> \u304c\u5fc5\u8981<\/td><\/tr><tr><td>default\u672a\u5b9a\u7fa9\u6642<\/td><td>\u4f8b\u5916\u3092\u767a\u751f<\/td><td>\u4f55\u3082\u8d77\u3053\u3089\u306a\u3044<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u5b9f\u969b\u306e\u30b3\u30fc\u30c9\u3067\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ switch\u6587\u3067\u306e\u5b9f\u88c5\u4f8b\n$status = 404;\nswitch ($status) {\n    case 200:\n        $message = 'Success';\n        break;\n    case 404:\n        $message = 'Not Found';\n        break;\n    case 500:\n        $message = 'Server Error';\n        break;\n    default:\n        $message = 'Unknown status';\n}\n\n\/\/ match\u5f0f\u3067\u306e\u5b9f\u88c5\u4f8b\n$status = 404;\n$message = match ($status) {\n    200 =&gt; 'Success',\n    404 =&gt; 'Not Found',\n    500 =&gt; 'Server Error',\n    default =&gt; 'Unknown status'\n};\n<\/pre>\n\n\n\n<p>\u7279\u306b\u6ce8\u76ee\u3059\u3079\u304d\u306f\u3001switch\u6587\u3067\u306f <code>break<\/code> \u3092\u5fd8\u308c\u308b\u3068\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u304c\u767a\u751f\u3057\u3001\u610f\u56f3\u3057\u306a\u3044\u52d5\u4f5c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u306e\u306b\u5bfe\u3057\u3001match\u5f0f\u3067\u306f\u305d\u306e\u3088\u3046\u306a\u5fc3\u914d\u304c\u306a\u3044\u70b9\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001match\u5f0f\u306f\u578b\u306e\u53b3\u5bc6\u306a\u6bd4\u8f03\u3092\u884c\u3046\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b1\u30fc\u30b9\u3067\u306e\u4e88\u671f\u305b\u306c\u30d0\u30b0\u3092\u9632\u304e\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ switch\u6587 (\u7de9\u3084\u304b\u306a\u6bd4\u8f03)\n$value = '1';  \/\/ \u6587\u5b57\u5217\u306e '1'\nswitch ($value) {\n    case 1:  \/\/ \u6570\u5024\u306e1\u3068\u6bd4\u8f03\u3059\u308b\u304c\u3001==\u3067\u306f\u540c\u3058\u3068\u5224\u5b9a\u3055\u308c\u308b\n        echo \"\u6570\u5024\u306e1\u3067\u3059\";\n        break;\n    case '1':\n        echo \"\u6587\u5b57\u5217\u306e'1'\u3067\u3059\";\n        break;\n}\n\/\/ \u51fa\u529b: \u6570\u5024\u306e1\u3067\u3059 (\u8aa4\u3063\u305f\u7d50\u679c)\n\n\/\/ match\u5f0f (\u53b3\u5bc6\u306a\u6bd4\u8f03)\n$value = '1';\necho match ($value) {\n    1 =&gt; \"\u6570\u5024\u306e1\u3067\u3059\",\n    '1' =&gt; \"\u6587\u5b57\u5217\u306e'1'\u3067\u3059\",\n};\n\/\/ \u51fa\u529b: \u6587\u5b57\u5217\u306e'1'\u3067\u3059 (\u6b63\u3057\u3044\u7d50\u679c)\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">match\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u306e\u74b0\u5883\u8981\u4ef6<\/h3>\n\n\n\n<p>match\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u306b\u306f\u3001PHP 8.0\u4ee5\u4e0a\u306e\u74b0\u5883\u304c\u5fc5\u8981\u3067\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067match\u5f0f\u3092\u6d3b\u7528\u3059\u308b\u305f\u3081\u306e\u74b0\u5883\u6e96\u5099\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-4\">PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u78ba\u8a8d<\/h4>\n\n\n\n<p>\u73fe\u5728\u4f7f\u7528\u3057\u3066\u3044\u308bPHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3044\u305a\u308c\u304b\u306e\u65b9\u6cd5\u3092\u4f7f\u7528\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ PHP\u30d5\u30a1\u30a4\u30eb\u5185\u3067\u78ba\u8a8d\necho 'Current PHP version: ' . phpversion();\n\n\/\/ \u307e\u305f\u306f\nphpinfo();\n<\/pre>\n\n\n\n<p>\u3042\u308b\u3044\u306f\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u304b\u3089\u306f\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">php -v\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-5\">PHP 8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u65b9\u6cd5<\/h4>\n\n\n\n<p>\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u5225\u306ePHP 8\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u65b9\u6cd5\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<p><strong>Linux (Ubuntu\/Debian)<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">sudo apt update\nsudo apt install php8.0-cli\n<\/pre>\n\n\n\n<p><strong>macOS (Homebrew)<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">brew install php@8.0\n<\/pre>\n\n\n\n<p><strong>Windows<\/strong>\uff1a PHP for Windows\uff08https:\/\/windows.php.net\/download\/\uff09\u304b\u3089\u6700\u65b0\u7248\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-6\">\u958b\u767a\u74b0\u5883\u3067\u306ePHP 8\u3078\u306e\u79fb\u884c\u6642\u306e\u6ce8\u610f\u70b9<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e92\u63db\u6027\u306e\u78ba\u8a8d<\/strong>\uff1a\u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u304cPHP 8\u306e\u5909\u66f4\u70b9\uff08\u7279\u306b\u5f8c\u65b9\u4e92\u63db\u6027\u306e\u306a\u3044\u5909\u66f4\uff09\u306b\u5f71\u97ff\u3055\u308c\u306a\u3044\u304b\u78ba\u8a8d<\/li>\n\n\n\n<li><strong>\u4f9d\u5b58\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u78ba\u8a8d<\/strong>\uff1a\u4f7f\u7528\u3057\u3066\u3044\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\u3084\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u304cPHP 8\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b\u78ba\u8a8d<\/li>\n\n\n\n<li><strong>\u6bb5\u968e\u7684\u306a\u79fb\u884c<\/strong>\uff1a\u53ef\u80fd\u3067\u3042\u308c\u3070\u3001\u30c6\u30b9\u30c8\u74b0\u5883\u3067\u5341\u5206\u306b\u691c\u8a3c\u3057\u3066\u304b\u3089\u672c\u756a\u74b0\u5883\u306b\u9069\u7528<\/li>\n\n\n\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u30e2\u30fc\u30c9\u306e\u6d3b\u7528<\/strong>\uff1a\u79fb\u884c\u521d\u671f\u306f\u30a8\u30e9\u30fc\u30ec\u30dd\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u6700\u5927\u5316\u3057\u3066\u554f\u984c\u3092\u65e9\u671f\u767a\u898b<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ PHP 8\u79fb\u884c\u6642\u306e\u63a8\u5968\u8a2d\u5b9a\uff08\u958b\u767a\u74b0\u5883\u7528\uff09\nini_set('display_errors', 1);\nini_set('display_startup_errors', 1);\nerror_reporting(E_ALL);\n<\/pre>\n\n\n\n<p>PHP 8.0\u4ee5\u964d\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308c\u3070\u3001\u7279\u5225\u306a\u8a2d\u5b9a\u306a\u3057\u306bmatch\u5f0f\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u65b0\u3057\u3044\u69cb\u6587\u3092\u6d3b\u7528\u3057\u3066\u3001\u3088\u308a\u5b89\u5168\u3067\u7c21\u6f54\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001match\u5f0f\u306e\u57fa\u672c\u69cb\u6587\u3068\u3088\u308a\u5b9f\u8df5\u7684\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-7\">match\u306e\u57fa\u672c\u69cb\u6587\u3068\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/h2>\n\n\n\n<p>PHP 8\u306ematch\u5f0f\u3092\u81ea\u5728\u306b\u64cd\u308b\u305f\u3081\u306b\u306f\u3001\u57fa\u672c\u69cb\u6587\u3092\u3057\u3063\u304b\u308a\u7406\u89e3\u3057\u3001\u9069\u5207\u306a\u4f7f\u3044\u65b9\u3092\u8eab\u306b\u3064\u3051\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001match\u5f0f\u306e\u6b63\u78ba\u306a\u66f8\u304d\u65b9\u3068\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u4f8b\u3092\u901a\u3057\u3066\u7406\u89e3\u3092\u6df1\u3081\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">match\u306e\u6b63\u3057\u3044\u66f8\u304d\u65b9\u3068\u57fa\u672c\u69cb\u6587<\/h3>\n\n\n\n<p>match\u5f0f\u306e\u57fa\u672c\u7684\u306a\u69cb\u6587\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$result = match (\u5f0f) {\n    \u6761\u4ef61 =&gt; \u7d50\u679c1,\n    \u6761\u4ef62 =&gt; \u7d50\u679c2,\n    \u6761\u4ef63, \u6761\u4ef64 =&gt; \u7d50\u679c3,\n    default =&gt; \u30c7\u30d5\u30a9\u30eb\u30c8\u7d50\u679c\n};\n<\/pre>\n\n\n\n<p>match\u5f0f\u306f\u4ee5\u4e0b\u306e\u8981\u7d20\u304b\u3089\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>match \u30ad\u30fc\u30ef\u30fc\u30c9<\/strong>: \u5f0f\u306e\u958b\u59cb\u3092\u793a\u3057\u307e\u3059<\/li>\n\n\n\n<li><strong>\u8a55\u4fa1\u3059\u308b\u5f0f<\/strong>: \u62ec\u5f27 <code>()<\/code> \u5185\u306b\u8a18\u8ff0\u3055\u308c\u3001\u5404\u6761\u4ef6\u3068\u6bd4\u8f03\u3055\u308c\u308b\u5024<\/li>\n\n\n\n<li><strong>\u6761\u4ef6\u3068\u7d50\u679c\u306e\u30da\u30a2<\/strong>: \u6761\u4ef6\u3068\u7d50\u679c\u3092 <code>=&gt;<\/code> \u6f14\u7b97\u5b50\u3067\u533a\u5207\u308a\u307e\u3059<\/li>\n\n\n\n<li><strong>\u8907\u6570\u6761\u4ef6<\/strong>: \u30ab\u30f3\u30de <code>,<\/code> \u3067\u533a\u5207\u3063\u3066\u8907\u6570\u306e\u6761\u4ef6\u3092\u6307\u5b9a\u53ef\u80fd\u3067\u3059<\/li>\n\n\n\n<li><strong>default\u53e5<\/strong>: \u3069\u306e\u6761\u4ef6\u306b\u3082\u4e00\u81f4\u3057\u306a\u304b\u3063\u305f\u5834\u5408\u306b\u4f7f\u7528\u3055\u308c\u308b\u7d50\u679c<\/li>\n<\/ol>\n\n\n\n<p>match\u5f0f\u306e\u7279\u5fb4\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u70b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f0f\u5168\u4f53\u304c\u5024\u3092\u8fd4\u3059\u305f\u3081\u3001\u5909\u6570\u3078\u306e\u4ee3\u5165\u3084echo\u6587\u3067\u306e\u76f4\u63a5\u51fa\u529b\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u6761\u4ef6\u306b\u4e00\u81f4\u3059\u308b\u3068\u305d\u306e\u7d50\u679c\u306e\u307f\u3092\u8fd4\u3057\u3001\u4ed6\u306e\u6761\u4ef6\u306f\u8a55\u4fa1\u3055\u308c\u306a\u3044<\/li>\n\n\n\n<li>\u4e00\u81f4\u3059\u308b\u6761\u4ef6\u304c\u306a\u304f\u3001default\u53e5\u3082\u306a\u3044\u5834\u5408\u306f <code>UnhandledMatchError<\/code> \u4f8b\u5916\u304c\u767a\u751f<\/li>\n\n\n\n<li>\u6761\u4ef6\u3068\u5024\u306f\u53b3\u5bc6\u6bd4\u8f03 (<code>===<\/code>) \u3067\u8a55\u4fa1\u3055\u308c\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u6761\u4ef6\u90e8\u5206\u306b\u306f\u3001\u30ea\u30c6\u30e9\u30eb\u5024\uff08\u6587\u5b57\u5217\u3001\u6570\u5024\uff09\u3060\u3051\u3067\u306a\u304f\u3001\u4efb\u610f\u306e\u5f0f\u3082\u6307\u5b9a\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$value = 5;\n$result = match (true) {\n    $value &gt; 10 =&gt; '10\u3088\u308a\u5927\u304d\u3044',\n    $value &gt; 5 =&gt; '5\u3088\u308a\u5927\u304d\u3044',\n    $value &gt; 0 =&gt; '\u6b63\u306e\u6570',\n    default =&gt; '\u305d\u306e\u4ed6'\n};\necho $result; \/\/ \u51fa\u529b: \u6b63\u306e\u6570\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001match\u5f0f\u306b <code>true<\/code> \u3092\u6e21\u3057\u3001\u5404\u6761\u4ef6\u5f0f\u306e\u7d50\u679c\uff08\u771f\u507d\u5024\uff09\u3068\u6bd4\u8f03\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u7c21\u5358\u306a\u5b9f\u88c5\u4f8b\u3067\u7406\u89e3\u3059\u308bmatch\u306e\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<p>\u5b9f\u969b\u306e\u30b3\u30fc\u30c9\u3067match\u5f0f\u304c\u3069\u306e\u3088\u3046\u306b\u4f7f\u308f\u308c\u308b\u306e\u304b\u3001\u3044\u304f\u3064\u304b\u306e\u5b9f\u7528\u7684\u306a\u4f8b\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-10\">\u4f8b1: HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306e\u51e6\u7406<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getStatusMessage(int $statusCode): string {\n    return match ($statusCode) {\n        200, 201, 204 =&gt; 'Success',\n        301, 302, 307, 308 =&gt; 'Redirect',\n        400 =&gt; 'Bad Request',\n        401 =&gt; 'Unauthorized',\n        403 =&gt; 'Forbidden',\n        404 =&gt; 'Not Found',\n        500, 502, 503 =&gt; 'Server Error',\n        default =&gt; 'Unknown Status Code'\n    };\n}\n\necho getStatusMessage(404); \/\/ \u51fa\u529b: Not Found\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-11\">\u4f8b2: \u578b\u306b\u57fa\u3065\u3044\u305f\u51e6\u7406\u306e\u5206\u5c90<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function formatValue(mixed $value): string {\n    return match (get_debug_type($value)) {\n        'null' =&gt; 'NULL',\n        'bool' =&gt; $value ? 'TRUE' : 'FALSE',\n        'int' =&gt; (string)$value,\n        'float' =&gt; number_format($value, 2),\n        'string' =&gt; \"'$value'\",\n        'array' =&gt; 'Array(' . count($value) . ')',\n        'object' =&gt; get_class($value) . ' Object',\n        default =&gt; 'Unknown Type'\n    };\n}\n\necho formatValue(null);      \/\/ \u51fa\u529b: NULL\necho formatValue(true);      \/\/ \u51fa\u529b: TRUE\necho formatValue(42);        \/\/ \u51fa\u529b: 42\necho formatValue(3.14159);   \/\/ \u51fa\u529b: 3.14\necho formatValue('hello');   \/\/ \u51fa\u529b: 'hello'\necho formatValue([1,2,3]);   \/\/ \u51fa\u529b: Array(3)\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-12\">\u4f8b3: \u6761\u4ef6\u5f0f\u3092\u4f7f\u3063\u305f\u8907\u5408\u7684\u306a\u5224\u5b9a<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getDiscountRate(int $purchaseAmount, bool $isVip): float {\n    return match (true) {\n        $isVip &amp;&amp; $purchaseAmount &gt;= 10000 =&gt; 0.20, \/\/ VIP\u30671\u4e07\u5186\u4ee5\u4e0a\u306a\u308920%\u30aa\u30d5\n        $isVip || $purchaseAmount &gt;= 10000 =&gt; 0.15, \/\/ VIP\u307e\u305f\u306f1\u4e07\u5186\u4ee5\u4e0a\u306a\u308915%\u30aa\u30d5\n        $purchaseAmount &gt;= 5000 =&gt; 0.10,           \/\/ 5\u5343\u5186\u4ee5\u4e0a\u306a\u308910%\u30aa\u30d5\n        $purchaseAmount &gt;= 3000 =&gt; 0.05,           \/\/ 3\u5343\u5186\u4ee5\u4e0a\u306a\u30895%\u30aa\u30d5\n        default =&gt; 0.00                             \/\/ \u305d\u308c\u4ee5\u5916\u306f\u5272\u5f15\u306a\u3057\n    };\n}\n\necho getDiscountRate(12000, false); \/\/ \u51fa\u529b: 0.15\necho getDiscountRate(4000, true);   \/\/ \u51fa\u529b: 0.15\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-13\">\u4f8b4: \u30af\u30ed\u30fc\u30b8\u30e3\uff08\u7121\u540d\u95a2\u6570\uff09\u3092\u8fd4\u3059<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getFormatter(string $format) {\n    return match ($format) {\n        'json' =&gt; fn($data) =&gt; json_encode($data, JSON_PRETTY_PRINT),\n        'xml' =&gt; fn($data) =&gt; convertToXml($data), \/\/ \u5b9f\u88c5\u306f\u7701\u7565\n        'csv' =&gt; fn($data) =&gt; implode(',', $data),\n        default =&gt; fn($data) =&gt; var_export($data, true)\n    };\n}\n\n$jsonFormatter = getFormatter('json');\necho $jsonFormatter(['name' =&gt; 'John', 'age' =&gt; 30]);\n\/\/ \u51fa\u529b: {\"name\":\"John\",\"age\":30}\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04\u306b\u6cbf\u3063\u305fmatch\u306e\u66f8\u304d\u65b9<\/h3>\n\n\n\n<p>match\u5f0f\u3092\u52b9\u679c\u7684\u306b\u4f7f\u3046\u306b\u306f\u3001\u8aad\u307f\u3084\u3059\u304f\u4fdd\u5b88\u3057\u3084\u3059\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u4ee5\u4e0b\u306f\u3001PSR-12\u3084\u305d\u306e\u4ed6\u306e\u4e00\u822c\u7684\u306aPHP\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04\u306b\u57fa\u3065\u3044\u305fmatch\u5f0f\u306e\u63a8\u5968\u3055\u308c\u308b\u66f8\u304d\u65b9\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-15\">\u57fa\u672c\u7684\u306a\u30d5\u30a9\u30fc\u30de\u30c3\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u63a8\u5968\u3055\u308c\u308b\u66f8\u304d\u65b9\n$result = match ($value) {\n    1 =&gt; 'One',\n    2 =&gt; 'Two',\n    default =&gt; 'Other'\n};\n\n\/\/ \u975e\u63a8\u5968: \u30b9\u30da\u30fc\u30b9\u3084\u6539\u884c\u304c\u4e0d\u9069\u5207\n$result=match($value){1=&gt;'One',2=&gt;'Two',default=&gt;'Other'};\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-16\">\u9577\u3044\u6761\u4ef6\u306e\u6271\u3044\u65b9<\/h4>\n\n\n\n<p>\u6761\u4ef6\u3084\u7d50\u679c\u304c\u9577\u3044\u5834\u5408\u306f\u3001\u9069\u5207\u306b\u6539\u884c\u3068\u30a4\u30f3\u30c7\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$result = match ($status) {\n    Status::PENDING, Status::PROCESSING =&gt; \n        $this-&gt;handleInProgressStatus($order, $status),\n    Status::COMPLETED =&gt; \n        $this-&gt;handleCompletedStatus($order),\n    Status::CANCELLED, Status::REFUNDED, Status::FAILED =&gt; \n        $this-&gt;handleTerminatedStatus($order, $status),\n    default =&gt; \n        throw new UnexpectedStatusException($status)\n};\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-17\">\u8907\u96d1\u306a\u6761\u4ef6\u306e\u6574\u7406<\/h4>\n\n\n\n<p>\u7279\u306b\u6761\u4ef6\u304c\u591a\u3044\u5834\u5408\u3001\u8996\u899a\u7684\u306b\u5206\u304b\u308a\u3084\u3059\u304f\u6574\u7406\u3059\u308b\u3053\u3068\u3067\u53ef\u8aad\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6761\u4ef6\u3068\u7d50\u679c\u3092\u63c3\u3048\u3066\u914d\u7f6e\n$dayName = match ($dayNumber) {\n    0 =&gt; '\u65e5\u66dc\u65e5',\n    1 =&gt; '\u6708\u66dc\u65e5',\n    2 =&gt; '\u706b\u66dc\u65e5',\n    3 =&gt; '\u6c34\u66dc\u65e5',\n    4 =&gt; '\u6728\u66dc\u65e5',\n    5 =&gt; '\u91d1\u66dc\u65e5',\n    6 =&gt; '\u571f\u66dc\u65e5',\n    default =&gt; '\u7121\u52b9\u306a\u65e5\u4ed8'\n};\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-18\">\u30b3\u30e1\u30f3\u30c8\u306e\u9069\u5207\u306a\u4f7f\u7528<\/h4>\n\n\n\n<p>\u8907\u96d1\u306a\u30ed\u30b8\u30c3\u30af\u306b\u306f\u9069\u5b9c\u30b3\u30e1\u30f3\u30c8\u3092\u8ffd\u52a0\u3057\u3066\u610f\u56f3\u3092\u660e\u78ba\u306b\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$action = match ($userInput) {\n    \/\/ \u30e6\u30fc\u30b6\u30fc\u30b3\u30de\u30f3\u30c9\u7cfb\n    'help', '?' =&gt; showHelp(),\n    'quit', 'exit', 'q' =&gt; exitApplication(),\n    \n    \/\/ \u30d5\u30a1\u30a4\u30eb\u64cd\u4f5c\u7cfb\n    'open', 'o' =&gt; openFile($filename),\n    'save', 's' =&gt; saveFile($filename),\n    'close', 'c' =&gt; closeFile(),\n    \n    \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u51e6\u7406\n    default =&gt; showUnknownCommandError($userInput)\n};\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-19\">\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>default\u53e5\u3092\u5e38\u306b\u542b\u3081\u308b<\/strong>: \u4e88\u671f\u3057\u306a\u3044\u5165\u529b\u306b\u5bfe\u3059\u308b\u5805\u7262\u6027\u3092\u78ba\u4fdd\u3057\u307e\u3059<\/li>\n\n\n\n<li><strong>\u8907\u96d1\u306a\u51e6\u7406\u306f\u5206\u96e2\u3059\u308b<\/strong>: match\u5185\u306e\u30ed\u30b8\u30c3\u30af\u306f\u30b7\u30f3\u30d7\u30eb\u306b\u4fdd\u3061\u3001\u8907\u96d1\u306a\u51e6\u7406\u306f\u5225\u306e\u95a2\u6570\u306b\u79fb\u52d5\u3057\u307e\u3059<\/li>\n\n\n\n<li><strong>\u6761\u4ef6\u306e\u9806\u5e8f\u3092\u8003\u616e\u3059\u308b<\/strong>: \u6700\u3082\u4e00\u822c\u7684\u306a\u30b1\u30fc\u30b9\u3092\u4e0a\u4f4d\u306b\u914d\u7f6e\u3059\u308b\u3068\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059<\/li>\n\n\n\n<li><strong>\u4f8b\u5916\u3092\u9069\u5207\u306b\u6271\u3046<\/strong>: default\u30b1\u30fc\u30b9\u3067\u4f8b\u5916\u3092\u30b9\u30ed\u30fc\u3059\u308b\u5834\u5408\u3001\u5177\u4f53\u7684\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u63d0\u4f9b\u3057\u307e\u3059<\/li>\n<\/ol>\n\n\n\n<p>match\u5f0f\u306f\u30b3\u30fc\u30c9\u306e\u660e\u78ba\u3055\u3068\u7c21\u6f54\u3055\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u5f37\u529b\u306a\u6a5f\u80fd\u3067\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u7d39\u4ecb\u3057\u305f\u57fa\u672c\u69cb\u6587\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u52b9\u7387\u7684\u3067\u8aad\u307f\u3084\u3059\u3044PHP\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-20\">\u5f93\u6765\u306eswitch\u6587\u304b\u3089match\u3078\u306e\u79fb\u884c\u30ac\u30a4\u30c9<\/h2>\n\n\n\n<p>PHP 8\u304b\u3089match\u5f0f\u304c\u5c0e\u5165\u3055\u308c\u305f\u3053\u3068\u3067\u3001\u5f93\u6765\u306eswitch\u6587\u3092\u3088\u308a\u5b89\u5168\u3067\u7c21\u6f54\u306a\u30b3\u30fc\u30c9\u306b\u7f6e\u304d\u63db\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3092\u65b0\u3057\u3044\u69cb\u6587\u306b\u79fb\u884c\u3059\u308b\u306b\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u6ce8\u610f\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001switch\u6587\u306e\u554f\u984c\u70b9\u3068match\u306b\u3088\u308b\u89e3\u6c7a\u6cd5\u3001\u304a\u3088\u3073\u5177\u4f53\u7684\u306a\u79fb\u884c\u624b\u9806\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-21\">switch\u6587\u306e\u554f\u984c\u70b9\u3068match\u306b\u3088\u308b\u89e3\u6c7a\u6cd5<\/h3>\n\n\n\n<p>switch\u6587\u306f\u9577\u5e74PHP\u3067\u4f7f\u308f\u308c\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u3044\u304f\u3064\u304b\u306e\u554f\u984c\u70b9\u304c\u3042\u308a\u307e\u3059\u3002match\u5f0f\u306f\u3053\u308c\u3089\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u8a2d\u8a08\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-22\">1. \u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u306b\u3088\u308b\u30d0\u30b0<\/h4>\n\n\n\n<p>switch\u6587\u306e\u6700\u3082\u4e00\u822c\u7684\u306a\u554f\u984c\u70b9\u306f\u3001<code>break<\/code>\u6587\u3092\u5fd8\u308c\u308b\u3053\u3068\u306b\u3088\u308b\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\uff08\u610f\u56f3\u3057\u306a\u3044\u6b21\u306ecase\u53e5\u3078\u306e\u51e6\u7406\u306e\u6d41\u308c\uff09\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u554f\u984c\u306e\u3042\u308bswitch\u6587\uff08\u30d0\u30b0\u3042\u308a\uff09\n$status = 200;\nswitch ($status) {\n    case 200:\n        $message = 'OK';\n        \/\/ break\u3092\u5fd8\u308c\u3066\u3057\u307e\u3063\u305f\n    case 404:\n        $message = 'Not Found'; \/\/ \u8aa4\u3063\u3066\u4e0a\u66f8\u304d\u3055\u308c\u308b\n        break;\n}\necho $message; \/\/ \u51fa\u529b: Not Found\uff08\u672c\u6765\u306f'OK'\u304c\u671f\u5f85\u3055\u308c\u308b\uff09\n<\/pre>\n\n\n\n<p>match\u5f0f\u3067\u306f\u3001\u5404\u6761\u4ef6\u306b\u5bfe\u3057\u3066\u4e00\u3064\u306e\u7d50\u679c\u306e\u307f\u304c\u8a55\u4fa1\u3055\u308c\u3001\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u306f\u4e00\u5207\u767a\u751f\u3057\u307e\u305b\u3093\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ match\u5f0f\u306b\u3088\u308b\u89e3\u6c7a\n$status = 200;\n$message = match ($status) {\n    200 =&gt; 'OK',\n    404 =&gt; 'Not Found',\n    default =&gt; 'Unknown'\n};\necho $message; \/\/ \u51fa\u529b: OK\uff08\u6b63\u3057\u3044\u7d50\u679c\uff09\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-23\">2. \u7de9\u3044\u6bd4\u8f03\u306b\u3088\u308b\u4e88\u671f\u305b\u306c\u52d5\u4f5c<\/h4>\n\n\n\n<p>switch\u6587\u306f\u300c==\u300d\uff08\u7de9\u3044\u6bd4\u8f03\uff09\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u578b\u306e\u81ea\u52d5\u5909\u63db\u306b\u3088\u308b\u4e88\u671f\u305b\u306c\u4e00\u81f4\u304c\u8d77\u3053\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u578b\u306e\u9055\u3044\u306b\u3088\u308b\u554f\u984c\n$value = '1'; \/\/ \u6587\u5b57\u5217\u306e'1'\nswitch ($value) {\n    case 1: \/\/ \u6570\u5024\u306e1\u3068\u6bd4\u8f03\n        echo '\u6570\u5024\u3067\u3059'; \/\/ \u7de9\u3044\u6bd4\u8f03\u306a\u306e\u3067\u5b9f\u884c\u3055\u308c\u308b\n        break;\n    case '1':\n        echo '\u6587\u5b57\u5217\u3067\u3059'; \/\/ \u5b9f\u884c\u3055\u308c\u306a\u3044\n        break;\n}\n<\/pre>\n\n\n\n<p>match\u5f0f\u306f\u300c===\u300d\uff08\u53b3\u5bc6\u6bd4\u8f03\uff09\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u578b\u306e\u4e0d\u4e00\u81f4\u306b\u3088\u308b\u30d0\u30b0\u3092\u9632\u6b62\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ match\u5f0f\u306b\u3088\u308b\u53b3\u5bc6\u6bd4\u8f03\n$value = '1';\n$result = match ($value) {\n    1 =&gt; '\u6570\u5024\u3067\u3059', \/\/ \u53b3\u5bc6\u6bd4\u8f03\u306a\u306e\u3067\u4e00\u81f4\u3057\u306a\u3044\n    '1' =&gt; '\u6587\u5b57\u5217\u3067\u3059', \/\/ \u4e00\u81f4\u3059\u308b\n    default =&gt; '\u4e0d\u660e\u306a\u5024\u3067\u3059'\n};\necho $result; \/\/ \u51fa\u529b: \u6587\u5b57\u5217\u3067\u3059\uff08\u6b63\u3057\u3044\u7d50\u679c\uff09\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-24\">3. \u30b3\u30fc\u30c9\u306e\u5197\u9577\u6027<\/h4>\n\n\n\n<p>\u8907\u6570\u306ecase\u3092\u540c\u3058\u51e6\u7406\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u5834\u5408\u3001switch\u6587\u3067\u306f\u5404case\u3092\u500b\u5225\u306b\u8a18\u8ff0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u30b3\u30fc\u30c9\u304c\u5197\u9577\u306b\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5197\u9577\u306aswitch\u6587\nswitch ($day) {\n    case 'Monday':\n    case 'Tuesday':\n    case 'Wednesday':\n    case 'Thursday':\n    case 'Friday':\n        $type = 'Weekday';\n        break;\n    case 'Saturday':\n    case 'Sunday':\n        $type = 'Weekend';\n        break;\n}\n<\/pre>\n\n\n\n<p>match\u5f0f\u3067\u306f\u8907\u6570\u306e\u6761\u4ef6\u3092\u30b3\u30f3\u30de\u3067\u533a\u5207\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u7c21\u6f54\u306b\u66f8\u3051\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u7c21\u6f54\u306amatch\u5f0f\n$type = match ($day) {\n    'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday' =&gt; 'Weekday',\n    'Saturday', 'Sunday' =&gt; 'Weekend',\n    default =&gt; 'Invalid day'\n};\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-25\">4. \u5f0f\u3068\u3057\u3066\u306e\u4f7f\u7528<\/h4>\n\n\n\n<p>switch\u6587\u306f\u300c\u6587\u300d\u3067\u3042\u308b\u305f\u3081\u3001\u76f4\u63a5\u5024\u3092\u8fd4\u3059\u3053\u3068\u304c\u3067\u304d\u305a\u3001\u4e00\u6642\u5909\u6570\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ switch\u6587\u3067\u306e\u4e00\u6642\u5909\u6570\u306e\u4f7f\u7528\nfunction getStatusMessage($status) {\n    $result = null;\n    switch ($status) {\n        case 200:\n            $result = 'OK';\n            break;\n        case 404:\n            $result = 'Not Found';\n            break;\n        default:\n            $result = 'Unknown';\n            break;\n    }\n    return $result;\n}\n<\/pre>\n\n\n\n<p>match\u5f0f\u306f\u300c\u5f0f\u300d\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u305f\u3081\u3001\u76f4\u63a5\u7d50\u679c\u3092\u8fd4\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ match\u5f0f\u3067\u76f4\u63a5\u8fd4\u3059\nfunction getStatusMessage($status) {\n    return match ($status) {\n        200 =&gt; 'OK',\n        404 =&gt; 'Not Found',\n        default =&gt; 'Unknown'\n    };\n}\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-26\">\u65e2\u5b58\u306eswitch\u6587\u3092match\u306b\u66f8\u304d\u63db\u3048\u308b\u5177\u4f53\u7684\u306a\u624b\u9806<\/h3>\n\n\n\n<p>\u65e2\u5b58\u306eswitch\u6587\u3092match\u5f0f\u306b\u79fb\u884c\u3059\u308b\u969b\u306f\u3001\u4ee5\u4e0b\u306e\u624b\u9806\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u5b89\u5168\u304b\u3064\u52b9\u7387\u7684\u306b\u66f8\u304d\u63db\u3048\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-27\">1. \u57fa\u672c\u7684\u306a\u5909\u63db\u30d1\u30bf\u30fc\u30f3<\/h4>\n\n\n\n<p>\u6700\u3082\u5358\u7d14\u306a\u30b1\u30fc\u30b9\u304b\u3089\u9806\u306b\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<p><strong>\u5358\u7d14\u306a\u5024\u306e\u6bd4\u8f03<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Before: switch\u6587\nswitch ($value) {\n    case 1:\n        $result = 'One';\n        break;\n    case 2:\n        $result = 'Two';\n        break;\n    default:\n        $result = 'Other';\n        break;\n}\n\n\/\/ After: match\u5f0f\n$result = match ($value) {\n    1 =&gt; 'One',\n    2 =&gt; 'Two',\n    default =&gt; 'Other'\n};\n<\/pre>\n\n\n\n<p><strong>\u8907\u6570\u306ecase\u3092\u307e\u3068\u3081\u308b<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Before: \u8907\u6570case\u3092\u4f7f\u7528\u3059\u308bswitch\u6587\nswitch ($errorCode) {\n    case 400:\n    case 401:\n    case 403:\n    case 404:\n        $category = 'Client Error';\n        break;\n    case 500:\n    case 501:\n    case 503:\n        $category = 'Server Error';\n        break;\n    default:\n        $category = 'Unknown Error';\n        break;\n}\n\n\/\/ After: \u30ab\u30f3\u30de\u3067\u533a\u5207\u308b\u69cb\u6587\n$category = match ($errorCode) {\n    400, 401, 403, 404 =&gt; 'Client Error',\n    500, 501, 503 =&gt; 'Server Error',\n    default =&gt; 'Unknown Error'\n};\n<\/pre>\n\n\n\n<p><strong>\u6761\u4ef6\u5f0f\u3092\u4f7f\u3063\u305f\u5206\u5c90<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Before: \u6761\u4ef6\u306b\u57fa\u3065\u304fswitch\u6587\nswitch (true) {\n    case $score &gt;= 90:\n        $grade = 'A';\n        break;\n    case $score &gt;= 80:\n        $grade = 'B';\n        break;\n    case $score &gt;= 70:\n        $grade = 'C';\n        break;\n    case $score &gt;= 60:\n        $grade = 'D';\n        break;\n    default:\n        $grade = 'F';\n        break;\n}\n\n\/\/ After: \u6761\u4ef6\u5f0f\u3092\u4f7f\u3063\u305fmatch\n$grade = match (true) {\n    $score &gt;= 90 =&gt; 'A',\n    $score &gt;= 80 =&gt; 'B',\n    $score &gt;= 70 =&gt; 'C',\n    $score &gt;= 60 =&gt; 'D',\n    default =&gt; 'F'\n};\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-28\">2. \u8907\u96d1\u306a\u30b1\u30fc\u30b9\u306e\u5bfe\u5fdc<\/h4>\n\n\n\n<p>\u8907\u6570\u306e\u6587\u3092\u542b\u3080switch\u6587\u306f\u3001\u95a2\u6570\u3084\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u3092\u6d3b\u7528\u3057\u3066\u5909\u63db\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Before: \u8907\u6570\u306e\u51e6\u7406\u3092\u884c\u3046switch\u6587\nswitch ($userType) {\n    case 'admin':\n        $permissions = ['read', 'write', 'delete'];\n        $dashboard = 'admin_dashboard';\n        $menu = getAdminMenu();\n        break;\n    case 'editor':\n        $permissions = ['read', 'write'];\n        $dashboard = 'editor_dashboard';\n        $menu = getEditorMenu();\n        break;\n    case 'user':\n        $permissions = ['read'];\n        $dashboard = 'user_dashboard';\n        $menu = getUserMenu();\n        break;\n}\n\n\/\/ After: \u95a2\u6570\u3092\u4f7f\u7528\u3057\u305f\u62bd\u51fa\n$config = match ($userType) {\n    'admin' =&gt; $this-&gt;getAdminConfig(),\n    'editor' =&gt; $this-&gt;getEditorConfig(),\n    'user' =&gt; $this-&gt;getUserConfig(),\n    default =&gt; $this-&gt;getGuestConfig()\n};\n\n\/\/ \u62bd\u51fa\u3057\u305f\u95a2\u6570\u306e\u4f8b\nprivate function getAdminConfig() {\n    return [\n        'permissions' =&gt; ['read', 'write', 'delete'],\n        'dashboard' =&gt; 'admin_dashboard',\n        'menu' =&gt; $this-&gt;getAdminMenu()\n    ];\n}\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-29\">3. \u79fb\u884c\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h4>\n\n\n\n<p>\u65e2\u5b58\u306eswitch\u6587\u3092match\u306b\u5909\u63db\u3059\u308b\u969b\u306e\u91cd\u8981\u306a\u30c1\u30a7\u30c3\u30af\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u578b\u306e\u78ba\u8a8d<\/strong>: \u6761\u4ef6\u306b\u4f7f\u7528\u3057\u3066\u3044\u308b\u5024\u306e\u578b\u3092\u78ba\u8a8d\u3057\u3001\u53b3\u5bc6\u6bd4\u8f03\uff08===\uff09\u304c\u9069\u5207\u306b\u52d5\u4f5c\u3059\u308b\u304b\u691c\u8a3c<\/li>\n\n\n\n<li><strong>\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u306e\u78ba\u8a8d<\/strong>: \u610f\u56f3\u7684\u306a\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u304c\u3042\u308c\u3070\u3001\u305d\u308c\u3092\u9069\u5207\u306b\u51e6\u7406\u3059\u308b\u65b9\u6cd5\u3092\u691c\u8a0e<\/li>\n\n\n\n<li><strong>default\u53e5\u306e\u8ffd\u52a0<\/strong>: match\u3067\u306f\u4e00\u81f4\u3059\u308b\u6761\u4ef6\u304c\u306a\u3044\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308b\u305f\u3081\u3001\u5fc5\u305adefault\u53e5\u3092\u7528\u610f<\/li>\n\n\n\n<li><strong>\u6761\u4ef6\u306e\u30b0\u30eb\u30fc\u30d7\u5316<\/strong>: \u540c\u3058\u7d50\u679c\u3092\u8fd4\u3059\u6761\u4ef6\u306f\u30ab\u30f3\u30de\u3067\u533a\u5207\u3063\u3066\u307e\u3068\u3081\u308b<\/li>\n\n\n\n<li><strong>\u8907\u96d1\u306a\u51e6\u7406\u306e\u5206\u96e2<\/strong>: \u8907\u6570\u306e\u6587\u3092\u542b\u3080\u51e6\u7406\u306f\u5225\u306e\u95a2\u6570\u306b\u62bd\u51fa<\/li>\n\n\n\n<li><strong>\u30c6\u30b9\u30c8\u306e\u5b9f\u65bd<\/strong>: \u5909\u63db\u5f8c\u306e\u52d5\u4f5c\u304c\u5143\u306e\u30b3\u30fc\u30c9\u3068\u540c\u3058\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-30\">\u4e92\u63db\u6027\u3092\u4fdd\u3061\u306a\u304c\u3089\u6bb5\u968e\u7684\u306b\u79fb\u884c\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u65e2\u5b58\u306ePHP 7\u4ee5\u524d\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3001\u4e00\u90e8\u306e\u30b3\u30fc\u30c9\u3060\u3051\u3092PHP 8\u306ematch\u5f0f\u306b\u79fb\u884c\u3057\u305f\u3044\u5834\u5408\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-31\">1. \u6761\u4ef6\u5206\u5c90\u306b\u3088\u308b\u30d0\u30fc\u30b8\u30e7\u30f3\u5bfe\u5fdc<\/h4>\n\n\n\n<p>PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u3088\u3063\u3066\u51e6\u7406\u3092\u5206\u5c90\u3055\u305b\u308b\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">if (PHP_VERSION_ID &gt;= 80000) {\n    \/\/ PHP 8\u4ee5\u4e0a\u306e\u5834\u5408\u306fmatch\u5f0f\u3092\u4f7f\u7528\n    $result = match ($value) {\n        1 =&gt; 'One',\n        2 =&gt; 'Two',\n        default =&gt; 'Other'\n    };\n} else {\n    \/\/ PHP 7\u4ee5\u4e0b\u306e\u5834\u5408\u306fswitch\u6587\u3092\u4f7f\u7528\n    switch ($value) {\n        case 1:\n            $result = 'One';\n            break;\n        case 2:\n            $result = 'Two';\n            break;\n        default:\n            $result = 'Other';\n            break;\n    }\n}\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-32\">2. \u30d8\u30eb\u30d1\u30fc\u95a2\u6570\u306e\u4f5c\u6210<\/h4>\n\n\n\n<p>match\u5f0f\u306e\u6a5f\u80fd\u3092\u6a21\u5023\u3059\u308b\u30d8\u30eb\u30d1\u30fc\u95a2\u6570\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/**\n * PHP 7\u4e92\u63db\u306ematch\u95a2\u6570\n * @param mixed $value \u6bd4\u8f03\u3059\u308b\u5024\n * @param array $patterns \u6761\u4ef6\u3068\u7d50\u679c\u306e\u30de\u30c3\u30d4\u30f3\u30b0\n * @return mixed \u4e00\u81f4\u3057\u305f\u6761\u4ef6\u306e\u7d50\u679c\n * @throws UnhandledMatchError \u4e00\u81f4\u3059\u308b\u6761\u4ef6\u304c\u306a\u3044\u5834\u5408\n *\/\nfunction match_compat($value, array $patterns) {\n    \/\/ \u901a\u5e38\u306e\u6761\u4ef6\u3092\u30c1\u30a7\u30c3\u30af\n    foreach ($patterns as $pattern =&gt; $result) {\n        if ($pattern === 'default') {\n            continue; \/\/ default\u306f\u5f8c\u3067\u51e6\u7406\n        }\n        \n        \/\/ \u8907\u6570\u6761\u4ef6\u306e\u5834\u5408\uff08\u914d\u5217\u3068\u3057\u3066\u6e21\u3059\uff09\n        if (is_array($pattern)) {\n            foreach ($pattern as $subPattern) {\n                if ($value === $subPattern) {\n                    return is_callable($result) ? $result() : $result;\n                }\n            }\n        } elseif ($value === $pattern) {\n            return is_callable($result) ? $result() : $result;\n        }\n    }\n    \n    \/\/ default\u304c\u3042\u308c\u3070\u51e6\u7406\n    if (isset($patterns['default'])) {\n        $result = $patterns['default'];\n        return is_callable($result) ? $result() : $result;\n    }\n    \n    \/\/ \u306a\u3044\u5834\u5408\u306f\u30a8\u30e9\u30fc\n    throw new RuntimeException('Unhandled match value');\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n$result = match_compat($value, [\n    1 =&gt; 'One',\n    [2, 3] =&gt; 'Two or Three',\n    'default' =&gt; 'Other'\n]);\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-33\">3. \u30dd\u30ea\u30d5\u30a3\u30eb\u306e\u6d3b\u7528<\/h4>\n\n\n\n<p>Symfony\u306a\u3069\u304c\u63d0\u4f9b\u3059\u308bPHP 8\u306e\u30dd\u30ea\u30d5\u30a3\u30eb\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># Symfony\u306e\u30dd\u30ea\u30d5\u30a3\u30eb\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\ncomposer require symfony\/polyfill-php80\n<\/pre>\n\n\n\n<p>\u3053\u308c\u306b\u3088\u308a\u3001PHP 7.x\u3067\u3082\u4e00\u90e8\u306ePHP 8\u6a5f\u80fd\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u304c\u3001match\u5f0f\u81ea\u4f53\u306f\u30b7\u30f3\u30bf\u30c3\u30af\u30b9\u306e\u554f\u984c\u306a\u306e\u3067\u30dd\u30ea\u30d5\u30a3\u30eb\u3067\u306f\u5bfe\u5fdc\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-34\">4. \u79fb\u884c\u306b\u304a\u3051\u308b\u52b9\u679c\u7684\u306a\u30c6\u30b9\u30c8\u6226\u7565<\/h4>\n\n\n\n<p>\u30b3\u30fc\u30c9\u306e\u5b89\u5168\u306a\u79fb\u884c\u306b\u306f\u3001\u9069\u5207\u306a\u30c6\u30b9\u30c8\u6226\u7565\u304c\u4e0d\u53ef\u6b20\u3067\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u65e2\u5b58\u306e\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u3092\u7dad\u6301<\/strong>: \u65e2\u5b58\u306e\u30c6\u30b9\u30c8\u304c\u5909\u63db\u5f8c\u3082\u901a\u308b\u3053\u3068\u3092\u78ba\u8a8d<\/li>\n\n\n\n<li><strong>\u5358\u4f53\u30c6\u30b9\u30c8\u306e\u4f5c\u6210<\/strong>: \u7279\u306b\u30a8\u30c3\u30b8\u30b1\u30fc\u30b9\u3084\u8907\u96d1\u306a\u6761\u4ef6\u5206\u5c90\u3092\u6301\u3064\u30b1\u30fc\u30b9\u306b\u3064\u3044\u3066\u30c6\u30b9\u30c8\u3092\u8ffd\u52a0<\/li>\n\n\n\n<li><strong>\u6bb5\u968e\u7684\u306a\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0<\/strong>: \u4e00\u5ea6\u306b\u3059\u3079\u3066\u3092\u5909\u66f4\u305b\u305a\u3001\u5c0f\u3055\u306a\u5909\u66f4\u3092\u7a4d\u307f\u91cd\u306d\u308b<\/li>\n\n\n\n<li><strong>A\/B\u30c6\u30b9\u30c8<\/strong>: \u4e21\u65b9\u306e\u5b9f\u88c5\u3092\u6bd4\u8f03\u3057\u3066\u7d50\u679c\u304c\u540c\u4e00\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u624b\u9806\u3068\u30c6\u30af\u30cb\u30c3\u30af\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u65e2\u5b58\u306eswitch\u6587\u304b\u3089match\u5f0f\u3078\u306e\u5b89\u5168\u3067\u52b9\u679c\u7684\u306a\u79fb\u884c\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002match\u5f0f\u306f\u5358\u306a\u308b\u69cb\u6587\u306e\u6539\u5584\u3060\u3051\u3067\u306a\u304f\u3001\u3088\u308a\u5805\u7262\u3067\u4fdd\u5b88\u3057\u3084\u3059\u3044\u30b3\u30fc\u30c9\u306b\u3064\u306a\u304c\u308b\u305f\u3081\u3001\u65b0\u3057\u3044\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3060\u3051\u3067\u306a\u304f\u3001\u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u306b\u3082\u7a4d\u6975\u7684\u306b\u53d6\u308a\u5165\u308c\u3066\u3044\u304f\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-35\">match\u3092\u6d3b\u7528\u3057\u305f7\u3064\u306e\u5b9f\u7528\u7684\u306a\u30b3\u30fc\u30c9\u4f8b<\/h2>\n\n\n\n<p>match\u5f0f\u306e\u5f37\u529b\u306a\u6a5f\u80fd\u3092\u6700\u5927\u9650\u306b\u6d3b\u7528\u3059\u308b\u305f\u3081\u3001\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u4f8b\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5b9f\u969b\u306e\u958b\u767a\u73fe\u5834\u3067\u5f79\u7acb\u30647\u3064\u306e\u30b7\u30ca\u30ea\u30aa\u3068\u5177\u4f53\u7684\u306a\u30b3\u30fc\u30c9\u4f8b\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u4f8b\u3092\u53c2\u8003\u306b\u3001\u81ea\u5206\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3082match\u5f0f\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-36\">\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306b\u57fa\u3065\u304f\u30e1\u30c3\u30bb\u30fc\u30b8\u8868\u793a\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<p>Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u3067\u306f\u3001HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306b\u5fdc\u3058\u305f\u9069\u5207\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u8868\u793a\u304c\u5fc5\u8981\u3067\u3059\u3002match\u5f0f\u3092\u4f7f\u3046\u3068\u3001\u3053\u306e\u51e6\u7406\u304c\u7c21\u6f54\u306b\u66f8\u3051\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getStatusMessage(int $statusCode): string {\n    return match ($statusCode) {\n        200, 201, 204 =&gt; 'Success',\n        301, 302, 307, 308 =&gt; 'Redirect',\n        400 =&gt; 'Bad Request',\n        401 =&gt; 'Unauthorized',\n        403 =&gt; 'Forbidden',\n        404 =&gt; 'Not Found',\n        405 =&gt; 'Method Not Allowed',\n        422 =&gt; 'Validation Error',\n        429 =&gt; 'Too Many Requests',\n        500, 502, 503 =&gt; 'Server Error',\n        default =&gt; 'Unknown Status',\n    };\n}\n\n\/\/ \u4f7f\u7528\u4f8b\necho getStatusMessage(404); \/\/ \u51fa\u529b: Not Found\n<\/pre>\n\n\n\n<p>\u3055\u3089\u306b\u591a\u8a00\u8a9e\u5bfe\u5fdc\u3082\u7c21\u5358\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getLocalizedStatusMessage(int $statusCode, string $locale = 'en'): string {\n    return match ($statusCode) {\n        404 =&gt; match ($locale) {\n            'en' =&gt; 'Not Found',\n            'ja' =&gt; '\u30da\u30fc\u30b8\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093',\n            'fr' =&gt; 'Page non trouv\u00e9e',\n            default =&gt; 'Not Found',\n        },\n        500 =&gt; match ($locale) {\n            'en' =&gt; 'Server Error',\n            'ja' =&gt; '\u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc',\n            'fr' =&gt; 'Erreur du serveur',\n            default =&gt; 'Server Error',\n        },\n        default =&gt; 'Unknown Status',\n    };\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001match\u5f0f\u3092\u30cd\u30b9\u30c8\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3068\u8a00\u8a9e\u306e\u4e21\u65b9\u306b\u57fa\u3065\u3044\u305f\u6761\u4ef6\u5206\u5c90\u3092\u7c21\u6f54\u306b\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-37\">\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u306e\u691c\u8a3c\u3068\u51e6\u7406\u306e\u52b9\u7387\u5316<\/h3>\n\n\n\n<p>\u30d5\u30a9\u30fc\u30e0\u5165\u529b\u3084API\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5165\u529b\u306e\u7a2e\u985e\u306b\u5fdc\u3058\u305f\u7570\u306a\u308b\u691c\u8a3c\u30ed\u30b8\u30c3\u30af\u304c\u5fc5\u8981\u3067\u3059\u3002match\u5f0f\u3092\u4f7f\u3063\u3066\u3001\u3053\u306e\u3088\u3046\u306a\u51e6\u7406\u3092\u52b9\u7387\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function validateInput(mixed $input, string $type): array {\n    $error = match (true) {\n        $type === 'email' &amp;&amp; !filter_var($input, FILTER_VALIDATE_EMAIL) \n            =&gt; 'Invalid email format',\n        $type === 'username' &amp;&amp; strlen($input) &lt; 3 \n            =&gt; 'Username must be at least 3 characters',\n        $type === 'password' &amp;&amp; !preg_match('\/^(?=.*[a-z])(?=.*[A-Z])(?=.*\\d).{8,}$\/', $input) \n            =&gt; 'Password must contain at least 8 characters, including uppercase, lowercase, and numbers',\n        $type === 'age' &amp;&amp; (!is_numeric($input) || $input &lt; 18) \n            =&gt; 'You must be at least 18 years old',\n        default =&gt; '',\n    };\n    \n    return [\n        'isValid' =&gt; empty($error),\n        'error' =&gt; $error,\n        'value' =&gt; $input,\n    ];\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n$result = validateInput('user', 'username');\nif (!$result['isValid']) {\n    echo $result['error']; \/\/ Username must be at least 3 characters\n}\n<\/pre>\n\n\n\n<p>\u307e\u305f\u3001\u5165\u529b\u5024\u306e\u6b63\u898f\u5316\u3082\u7c21\u5358\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function normalizeInput(mixed $input, string $type): mixed {\n    return match ($type) {\n        'email' =&gt; strtolower(trim($input)),\n        'phone' =&gt; preg_replace('\/[^0-9]\/', '', $input), \/\/ \u6570\u5b57\u4ee5\u5916\u3092\u524a\u9664\n        'date' =&gt; (new DateTime($input))-&gt;format('Y-m-d'),\n        'boolean' =&gt; in_array(strtolower($input), ['yes', 'true', '1', 'on'], true),\n        'integer' =&gt; (int) $input,\n        'float' =&gt; (float) $input,\n        default =&gt; trim($input),\n    };\n}\n<\/pre>\n\n\n\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u69d8\u3005\u306a\u5f62\u5f0f\u306e\u5165\u529b\u3092\u4e00\u8cab\u3057\u305f\u65b9\u6cd5\u3067\u51e6\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-38\">\u914d\u5217\u30ad\u30fc\u306e\u5b58\u5728\u78ba\u8a8d\u3068\u5b89\u5168\u306a\u30a2\u30af\u30bb\u30b9\u65b9\u6cd5<\/h3>\n\n\n\n<p>PHP\u3067\u306f\u3001\u5b58\u5728\u3057\u306a\u3044\u914d\u5217\u30ad\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u30a8\u30e9\u30fc\u3084\u8b66\u544a\u304c\u767a\u751f\u3057\u307e\u3059\u3002match\u5f0f\u3092\u4f7f\u3063\u3066\u3001\u5b89\u5168\u306a\u30a2\u30af\u30bb\u30b9\u65b9\u6cd5\u3092\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function safeGet(array $array, string $key, mixed $default = null): mixed {\n    return match (true) {\n        array_key_exists($key, $array) =&gt; $array[$key],\n        default =&gt; $default,\n    };\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n$user = [\n    'name' =&gt; 'John',\n    'email' =&gt; 'john@example.com',\n    \/\/ 'phone' \u30ad\u30fc\u306f\u5b58\u5728\u3057\u306a\u3044\n];\n\n$phone = safeGet($user, 'phone', 'N\/A');\necho $phone; \/\/ \u51fa\u529b: N\/A\n<\/pre>\n\n\n\n<p>\u3055\u3089\u306b\u3001\u30cd\u30b9\u30c8\u3055\u308c\u305f\u914d\u5217\u306b\u5bfe\u3057\u3066\u3082\u540c\u69d8\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u4f7f\u3048\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getNestedValue(array $array, string $path, mixed $default = null): mixed {\n    $keys = explode('.', $path);\n    $current = $array;\n    \n    foreach ($keys as $key) {\n        $current = match (true) {\n            is_array($current) &amp;&amp; array_key_exists($key, $current) =&gt; $current[$key],\n            default =&gt; null,\n        };\n        \n        if ($current === null) {\n            return $default;\n        }\n    }\n    \n    return $current;\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n$data = [\n    'user' =&gt; [\n        'profile' =&gt; [\n            'name' =&gt; 'John',\n        ],\n    ],\n];\n\n$name = getNestedValue($data, 'user.profile.name', 'Unknown');\necho $name; \/\/ \u51fa\u529b: John\n\n$age = getNestedValue($data, 'user.profile.age', 0);\necho $age; \/\/ \u51fa\u529b: 0 (\u30c7\u30d5\u30a9\u30eb\u30c8\u5024)\n<\/pre>\n\n\n\n<p>\u3053\u306e\u65b9\u6cd5\u306f\u3001\u7279\u306bJSON API\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u51e6\u7406\u3084\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u5024\u53d6\u5f97\u306b\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-39\">\u65e5\u4ed8\u3084\u6642\u9593\u306b\u57fa\u3065\u304f\u6761\u4ef6\u5206\u5c90\u306e\u7c21\u7565\u5316<\/h3>\n\n\n\n<p>\u30ab\u30ec\u30f3\u30c0\u30fc\u30a2\u30d7\u30ea\u3084\u4e88\u7d04\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u65e5\u4ed8\u3084\u6642\u9593\u306b\u57fa\u3065\u3044\u3066\u51e6\u7406\u3092\u5207\u308a\u66ff\u3048\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002match\u5f0f\u3067\u3053\u308c\u3092\u7c21\u6f54\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getDayType(string $date): string {\n    $dayOfWeek = (new DateTime($date))-&gt;format('N'); \/\/ 1 (\u6708) \u304b\u3089 7 (\u65e5)\n    \n    return match ($dayOfWeek) {\n        '1', '2', '3', '4', '5' =&gt; 'Weekday',\n        '6', '7' =&gt; 'Weekend',\n        default =&gt; 'Unknown',\n    };\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n$type = getDayType('2023-06-10'); \/\/ \u571f\u66dc\u65e5\necho $type; \/\/ \u51fa\u529b: Weekend\n<\/pre>\n\n\n\n<p>\u6642\u9593\u5e2f\u306b\u5fdc\u3058\u305f\u6328\u62f6\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u751f\u6210\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getGreeting(DateTime $time = null): string {\n    $time ??= new DateTime();\n    $hour = (int) $time-&gt;format('G'); \/\/ 0-23\u6642\n    \n    return match (true) {\n        $hour &gt;= 5 &amp;&amp; $hour &lt; 12 =&gt; 'Good morning',\n        $hour &gt;= 12 &amp;&amp; $hour &lt; 18 =&gt; 'Good afternoon',\n        $hour &gt;= 18 &amp;&amp; $hour &lt; 22 =&gt; 'Good evening',\n        default =&gt; 'Good night',\n    };\n}\n\n\/\/ \u4f7f\u7528\u4f8b\necho getGreeting(new DateTime('08:30')); \/\/ \u51fa\u529b: Good morning\necho getGreeting(new DateTime('15:45')); \/\/ \u51fa\u529b: Good afternoon\n<\/pre>\n\n\n\n<p>\u307e\u305f\u3001\u5b63\u7bc0\u5224\u5b9a\u3082\u7c21\u5358\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getSeason(DateTime $date = null): string {\n    $date ??= new DateTime();\n    $month = (int) $date-&gt;format('n'); \/\/ 1-12\u6708\n    \n    return match (true) {\n        in_array($month, [3, 4, 5]) =&gt; 'Spring',\n        in_array($month, [6, 7, 8]) =&gt; 'Summer',\n        in_array($month, [9, 10, 11]) =&gt; 'Autumn',\n        in_array($month, [12, 1, 2]) =&gt; 'Winter',\n        default =&gt; 'Unknown',\n    };\n}\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-40\">\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\u306b\u57fa\u3065\u304f\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<p>Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30ed\u30fc\u30eb\u3084\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\u306b\u57fa\u3065\u3044\u3066\u6a5f\u80fd\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u5236\u5fa1\u3059\u308b\u3053\u3068\u304c\u4e00\u822c\u7684\u3067\u3059\u3002match\u5f0f\u3092\u4f7f\u3063\u3066\u3001\u67d4\u8edf\u306a\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u30b7\u30b9\u30c6\u30e0\u3092\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function canPerformAction(string $action, string $userRole): bool {\n    return match ($action) {\n        'view_dashboard' =&gt; in_array($userRole, ['admin', 'manager', 'editor']),\n        'edit_content' =&gt; in_array($userRole, ['admin', 'editor']),\n        'delete_content' =&gt; in_array($userRole, ['admin']),\n        'manage_users' =&gt; $userRole === 'admin',\n        'view_reports' =&gt; in_array($userRole, ['admin', 'manager']),\n        default =&gt; false,\n    };\n}\n\n\/\/ \u4f7f\u7528\u4f8b\nif (canPerformAction('edit_content', $currentUserRole)) {\n    \/\/ \u7de8\u96c6\u6a5f\u80fd\u3092\u8868\u793a\n}\n<\/pre>\n\n\n\n<p>\u307e\u305f\u3001UI\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u8868\u793a\u5236\u5fa1\u306b\u3082\u6d3b\u7528\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getButtonAttributes(string $action, string $userRole, bool $isSpecialContent = false): array {\n    $isVisible = match ($action) {\n        'create' =&gt; in_array($userRole, ['admin', 'editor']),\n        'edit' =&gt; in_array($userRole, ['admin', 'editor']),\n        'delete' =&gt; $userRole === 'admin',\n        'export' =&gt; in_array($userRole, ['admin', 'manager']),\n        default =&gt; false,\n    };\n    \n    if (!$isVisible) {\n        return ['style' =&gt; 'display: none;'];\n    }\n    \n    $isDisabled = match ($action) {\n        'edit' =&gt; $userRole === 'editor' &amp;&amp; $isSpecialContent,\n        'delete' =&gt; $userRole === 'admin' &amp;&amp; $isSpecialContent,\n        default =&gt; false,\n    };\n    \n    return $isDisabled \n        ? ['disabled' =&gt; 'disabled', 'title' =&gt; 'Not available for this content'] \n        : [];\n}\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-41\">\u591a\u8a00\u8a9e\u5bfe\u5fdc\u30b5\u30a4\u30c8\u3067\u306e\u8a00\u8a9e\u5207\u308a\u66ff\u3048\u51e6\u7406<\/h3>\n\n\n\n<p>\u56fd\u969b\u7684\u306aWeb\u30b5\u30a4\u30c8\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u8a00\u8a9e\u8a2d\u5b9a\u306b\u57fa\u3065\u3044\u3066\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8868\u793a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002match\u5f0f\u3092\u4f7f\u3063\u3066\u3001\u8a00\u8a9e\u30ea\u30bd\u30fc\u30b9\u3092\u52b9\u7387\u7684\u306b\u7ba1\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function translate(string $key, string $locale): string {\n    return match ($key) {\n        'welcome' =&gt; match ($locale) {\n            'en' =&gt; 'Welcome to our website',\n            'ja' =&gt; '\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3078\u3088\u3046\u3053\u305d',\n            'fr' =&gt; 'Bienvenue sur notre site',\n            'de' =&gt; 'Willkommen auf unserer Website',\n            default =&gt; 'Welcome to our website',\n        },\n        'login' =&gt; match ($locale) {\n            'en' =&gt; 'Log in',\n            'ja' =&gt; '\u30ed\u30b0\u30a4\u30f3',\n            'fr' =&gt; 'Connexion',\n            'de' =&gt; 'Anmelden',\n            default =&gt; 'Log in',\n        },\n        'register' =&gt; match ($locale) {\n            'en' =&gt; 'Register',\n            'ja' =&gt; '\u767b\u9332',\n            'fr' =&gt; 'S\\'inscrire',\n            'de' =&gt; 'Registrieren',\n            default =&gt; 'Register',\n        },\n        default =&gt; 'Translation not found',\n    };\n}\n<\/pre>\n\n\n\n<p>\u307e\u305f\u3001\u65e5\u4ed8\u306e\u30ed\u30fc\u30ab\u30e9\u30a4\u30ba\u306b\u3082\u6d3b\u7528\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function formatLocalizedDate(DateTime $date, string $locale): string {\n    $format = match ($locale) {\n        'en' =&gt; 'm\/d\/Y',     \/\/ MM\/DD\/YYYY (US)\n        'ja' =&gt; 'Y\u5e74m\u6708d\u65e5',  \/\/ YYYY\u5e74MM\u6708DD\u65e5\n        'fr' =&gt; 'd\/m\/Y',     \/\/ DD\/MM\/YYYY\n        'de' =&gt; 'd.m.Y',     \/\/ DD.MM.YYYY\n        default =&gt; 'Y-m-d',  \/\/ YYYY-MM-DD (ISO)\n    };\n    \n    return $date-&gt;format($format);\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n$date = new DateTime('2023-01-15');\necho formatLocalizedDate($date, 'ja'); \/\/ \u51fa\u529b: 2023\u5e7401\u670815\u65e5\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-42\">\u8a2d\u5b9a\u5024\u306b\u57fa\u3065\u304f\u30b5\u30fc\u30d3\u30b9\u5207\u308a\u66ff\u3048\u306e\u67d4\u8edf\u306a\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u74b0\u5883\uff08\u958b\u767a\/\u30c6\u30b9\u30c8\/\u672c\u756a\uff09\u3084\u8a2d\u5b9a\u306b\u57fa\u3065\u3044\u3066\u3001\u7570\u306a\u308b\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u4e00\u822c\u7684\u3067\u3059\u3002match\u5f0f\u3092\u4f7f\u3063\u3066\u3001\u3053\u306e\u3088\u3046\u306a\u52d5\u7684\u306a\u30b5\u30fc\u30d3\u30b9\u9078\u629e\u3092\u7c21\u6f54\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class PaymentGatewayFactory {\n    public static function create(string $gateway): PaymentGatewayInterface {\n        return match ($gateway) {\n            'stripe' =&gt; new StripeGateway(config('stripe.key'), config('stripe.secret')),\n            'paypal' =&gt; new PayPalGateway(config('paypal.client_id'), config('paypal.secret')),\n            'authorize' =&gt; new AuthorizeNetGateway(config('authorize.login_id'), config('authorize.transaction_key')),\n            'braintree' =&gt; new BraintreeGateway(config('braintree.merchant_id'), config('braintree.public_key'), config('braintree.private_key')),\n            default =&gt; throw new InvalidArgumentException(\"Unsupported payment gateway: {$gateway}\"),\n        };\n    }\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n$gateway = PaymentGatewayFactory::create(config('app.payment_gateway'));\n$response = $gateway-&gt;processPayment($amount, $cardDetails);\n<\/pre>\n\n\n\n<p>\u307e\u305f\u3001\u74b0\u5883\u306b\u57fa\u3065\u304fAPI\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u8a2d\u5b9a\u3082\u7c21\u6f54\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getApiClient(string $environment): ApiClientInterface {\n    return match ($environment) {\n        'production' =&gt; new ApiClient(\n            'https:\/\/api.example.com\/v1',\n            getenv('API_KEY_PRODUCTION'),\n            ['timeout' =&gt; 30]\n        ),\n        'staging' =&gt; new ApiClient(\n            'https:\/\/staging-api.example.com\/v1',\n            getenv('API_KEY_STAGING'),\n            ['timeout' =&gt; 60]\n        ),\n        'development' =&gt; new ApiClient(\n            'https:\/\/dev-api.example.com\/v1',\n            'test_key',\n            ['timeout' =&gt; 120, 'debug' =&gt; true]\n        ),\n        default =&gt; throw new InvalidArgumentException(\"Unknown environment: {$environment}\"),\n    };\n}\n<\/pre>\n\n\n\n<p>Laravel\u306a\u3069\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u7d44\u307f\u5408\u308f\u305b\u305f\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Laravel\u3067\u306e\u5b9f\u88c5\u4f8b\nclass AppServiceProvider extends ServiceProvider {\n    public function register() {\n        $this-&gt;app-&gt;singleton(LoggerInterface::class, function ($app) {\n            return match (config('app.env')) {\n                'production' =&gt; new CloudWatchLogger(),\n                'staging' =&gt; new CombinedLogger([new FileLogger(), new SlackLogger()]),\n                'local', 'testing' =&gt; new FileLogger(),\n                default =&gt; new ConsoleLogger(),\n            };\n        });\n    }\n}\n<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u7528\u7684\u306a\u4f8b\u3092\u901a\u3058\u3066\u3001match\u5f0f\u304c\u3044\u304b\u306b\u69d8\u3005\u306a\u30b7\u30ca\u30ea\u30aa\u3067\u52b9\u679c\u7684\u306b\u4f7f\u3048\u308b\u304b\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u5358\u306a\u308b\u6761\u4ef6\u5206\u5c90\u3060\u3051\u3067\u306a\u304f\u3001\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u8003\u3048\u65b9\u3092\u53d6\u308a\u5165\u308c\u305f\u30a8\u30ec\u30ac\u30f3\u30c8\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u304cmatch\u5f0f\u306e\u9b45\u529b\u3067\u3059\u3002\u81ea\u5206\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3082\u3001\u3053\u308c\u3089\u306e\u4f8b\u3092\u53c2\u8003\u306bmatch\u5f0f\u3092\u7a4d\u6975\u7684\u306b\u6d3b\u7528\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-43\">match\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<p>match\u5f0f\u3092\u52b9\u679c\u7684\u306b\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u305d\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u7279\u6027\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306a\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001match\u3068switch\u6587\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03\u3001\u6700\u9069\u5316\u624b\u6cd5\u3001\u305d\u3057\u3066\u9ad8\u8ca0\u8377\u74b0\u5883\u3067\u306e\u52b9\u679c\u7684\u306a\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-44\">match\u3068switch\u6587\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03<\/h3>\n\n\n\n<p>match\u5f0f\u306f\u5358\u306bswitch\u306e\u4ee3\u66ff\u69cb\u6587\u3067\u306f\u306a\u304f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u9762\u3067\u3082\u512a\u4f4d\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4e21\u8005\u3092\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-45\">\u5b9f\u884c\u901f\u5ea6\u306e\u6bd4\u8f03<\/h4>\n\n\n\n<p>\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u30c6\u30b9\u30c8\u306b\u3088\u308b\u3068\u3001match\u5f0f\u306f\u540c\u7b49\u306e\u6761\u4ef6\u5206\u5c90\u306b\u304a\u3044\u3066switch\u6587\u3088\u308a\u5e73\u5747\u7684\u306b\u9ad8\u901f\u3067\u3059\u3002<\/p>\n\n\n<div id=\"id-20eabf27-b6c6-45e9-bb72-ee2aa2cccfdd\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30b7\u30ca\u30ea\u30aa<\/th><th>match<\/th><th>switch<\/th><th>match \u306e\u6539\u5584\u7387<\/th><\/tr><\/thead><tbody><tr><td>\u5358\u7d14\u306a\u6761\u4ef6 (1000\u56de)<\/td><td>0.00021\u79d2<\/td><td>0.00023\u79d2<\/td><td>\u7d048%<\/td><\/tr><tr><td>\u8907\u96d1\u306a\u6761\u4ef6 (1000\u56de)<\/td><td>0.00035\u79d2<\/td><td>0.00042\u79d2<\/td><td>\u7d0416%<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u3053\u306e\u901f\u5ea6\u5dee\u306f\u3001\u4ee5\u4e0b\u306e\u8981\u56e0\u306b\u3088\u308b\u3082\u306e\u3067\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u6700\u9069\u5316<\/strong>: PHP 8\u3067\u306fmatch\u5f0f\u304c\u3088\u308a\u52b9\u7387\u7684\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u308b<\/li>\n\n\n\n<li><strong>\u5358\u7d14\u306a\u30aa\u30da\u30b3\u30fc\u30c9<\/strong>: match\u5f0f\u306f\u3088\u308a\u5c11\u306a\u3044\u4e2d\u9593\u30b3\u30fc\u30c9\uff08opcode\uff09\u3092\u751f\u6210\u3059\u308b<\/li>\n\n\n\n<li><strong>\u53b3\u5bc6\u6bd4\u8f03\u306e\u52b9\u7387<\/strong>: <code>===<\/code> \u306b\u3088\u308b\u6bd4\u8f03\u306f\u578b\u5909\u63db\u304c\u4e0d\u8981\u3067\u51e6\u7406\u304c\u901f\u3044<\/li>\n<\/ol>\n\n\n\n<p>\u7279\u306b\u3001\u6761\u4ef6\u306e\u6570\u304c\u5897\u3048\u308b\u307b\u3069\u3053\u306e\u5dee\u306f\u9855\u8457\u306b\u306a\u308b\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-46\">\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6bd4\u8f03<\/h4>\n\n\n\n<p>match\u5f0f\u306fswitch\u6587\u3068\u6bd4\u8f03\u3057\u3066\u82e5\u5e72\u5c11\u306a\u3044\u30e1\u30e2\u30ea\u3092\u4f7f\u7528\u3059\u308b\u50be\u5411\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n<div id=\"id-f3d8c406-ee29-4e44-a644-f93c37392bd1\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30b7\u30ca\u30ea\u30aa<\/th><th>match<\/th><th>switch<\/th><th>\u30e1\u30e2\u30ea\u524a\u6e1b\u7387<\/th><\/tr><\/thead><tbody><tr><td>\u5358\u7d14\u306a\u30b1\u30fc\u30b9 (1000\u56de)<\/td><td>\u7d043.2KB<\/td><td>\u7d043.5KB<\/td><td>\u7d048%<\/td><\/tr><tr><td>\u8907\u96d1\u306a\u30b1\u30fc\u30b9 (1000\u56de)<\/td><td>\u7d045.1KB<\/td><td>\u7d045.8KB<\/td><td>\u7d0412%<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u3053\u306e\u5dee\u306f\u4ee5\u4e0b\u306e\u8981\u56e0\u306b\u3088\u308b\u3082\u306e\u3067\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5909\u6570\u306e\u6700\u5c0f\u5316<\/strong>: match\u5f0f\u306f\u4e2d\u9593\u5909\u6570\u304c\u4e0d\u8981\u3067\u3001\u7d50\u679c\u3092\u76f4\u63a5\u8fd4\u305b\u308b<\/li>\n\n\n\n<li><strong>\u69cb\u9020\u306e\u30b7\u30f3\u30d7\u30eb\u5316<\/strong>: \u5185\u90e8\u8868\u73fe\u304c\u3088\u308a\u30b3\u30f3\u30d1\u30af\u30c8<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-47\">\u30aa\u30da\u30b3\u30fc\u30c9\u751f\u6210\u306e\u9055\u3044<\/h4>\n\n\n\n<p>PHP\u306f\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5b9f\u884c\u3059\u308b\u524d\u306b\u5185\u90e8\u7684\u306bopcode\u3068\u547c\u3070\u308c\u308b\u4e2d\u9593\u30b3\u30fc\u30c9\u306b\u5909\u63db\u3057\u307e\u3059\u3002opcode\u751f\u6210\u306e\u89b3\u70b9\u304b\u3089\u3082\u4e21\u8005\u306b\u306f\u9055\u3044\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>switch\u6587<\/strong>: \u5404\u30b1\u30fc\u30b9\u3054\u3068\u306b\u6bd4\u8f03\u547d\u4ee4\u3068\u30b8\u30e3\u30f3\u30d7\u547d\u4ee4\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u591a\u304f\u751f\u6210\u3055\u308c\u308b<\/li>\n\n\n\n<li><strong>match\u5f0f<\/strong>: \u3088\u308a\u30b7\u30f3\u30d7\u30eb\u306a\u6bd4\u8f03\u547d\u4ee4\u3068\u76f4\u63a5\u7684\u306a\u7d50\u679c\u9078\u629e<\/li>\n<\/ul>\n\n\n\n<p>\u4ee5\u4e0b\u306fopcode\u306e\u6982\u5ff5\u7684\u306a\u9055\u3044\u3092\u793a\u3057\u3066\u3044\u307e\u3059\uff08\u5b9f\u969b\u306eopcode\u306f\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\uff09\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ switch\u6587\u306eopcode\u30a4\u30e1\u30fc\u30b8\nSWITCH_STRING         \/\/ \u6587\u5b57\u5217\u30b9\u30a4\u30c3\u30c1\u958b\u59cb\nIS_EQUAL \"value1\"     \/\/ \u50241\u3068\u6bd4\u8f03\nJMPZ L1               \/\/ \u4e00\u81f4\u3057\u306a\u3051\u308c\u3070L1\u3078\u30b8\u30e3\u30f3\u30d7\n... \u51e6\u74061 ...\nJMP END               \/\/ \u7d42\u4e86\u4f4d\u7f6e\u3078\u30b8\u30e3\u30f3\u30d7\nL1: IS_EQUAL \"value2\" \/\/ \u50242\u3068\u6bd4\u8f03\n... \u4ee5\u4e0b\u540c\u69d8 ...\n\n\/\/ match\u5f0f\u306eopcode\u30a4\u30e1\u30fc\u30b8\nINIT_MATCH            \/\/ match\u5f0f\u306e\u521d\u671f\u5316\nIS_IDENTICAL \"value1\" \/\/ \u50241\u3068\u53b3\u5bc6\u6bd4\u8f03\nJMPNZ RESULT1         \/\/ \u4e00\u81f4\u3059\u308c\u3070RESULT1\u3078\u30b8\u30e3\u30f3\u30d7\nIS_IDENTICAL \"value2\" \/\/ \u50242\u3068\u53b3\u5bc6\u6bd4\u8f03\n... \u4ee5\u4e0b\u540c\u69d8 ...\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-48\">match\u3092\u4f7f\u7528\u3057\u305f\u969b\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u6cd5<\/h3>\n\n\n\n<p>match\u5f0f\u3092\u6700\u5927\u9650\u306b\u52b9\u7387\u3088\u304f\u4f7f\u3046\u305f\u3081\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-49\">1. \u6761\u4ef6\u306e\u9806\u5e8f\u6700\u9069\u5316<\/h4>\n\n\n\n<p>\u6700\u3082\u983b\u7e41\u306b\u4e00\u81f4\u3059\u308b\u6761\u4ef6\u3092\u6700\u521d\u306b\u914d\u7f6e\u3059\u308b\u3053\u3068\u3067\u3001\u5e73\u5747\u5b9f\u884c\u6642\u9593\u3092\u77ed\u7e2e\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6700\u9069\u5316\u524d: \u983b\u51fa\u6761\u4ef6\u304c\u9014\u4e2d\u306b\u3042\u308b\n$result = match ($status) {\n    'rare_case_1' =&gt; handleRareCase1(),     \/\/ 5%\u306e\u78ba\u7387\n    'rare_case_2' =&gt; handleRareCase2(),     \/\/ 5%\u306e\u78ba\u7387\n    'common_case' =&gt; handleCommonCase(),    \/\/ 80%\u306e\u78ba\u7387\n    'rare_case_3' =&gt; handleRareCase3(),     \/\/ 5%\u306e\u78ba\u7387\n    default =&gt; handleDefault(),             \/\/ 5%\u306e\u78ba\u7387\n};\n\n\/\/ \u6700\u9069\u5316\u5f8c: \u983b\u51fa\u6761\u4ef6\u3092\u5148\u982d\u306b\u914d\u7f6e\n$result = match ($status) {\n    'common_case' =&gt; handleCommonCase(),    \/\/ 80%\u306e\u78ba\u7387\n    'rare_case_1' =&gt; handleRareCase1(),     \/\/ 5%\u306e\u78ba\u7387\n    'rare_case_2' =&gt; handleRareCase2(),     \/\/ 5%\u306e\u78ba\u7387\n    'rare_case_3' =&gt; handleRareCase3(),     \/\/ 5%\u306e\u78ba\u7387\n    default =&gt; handleDefault(),             \/\/ 5%\u306e\u78ba\u7387\n};\n<\/pre>\n\n\n\n<p>\u3053\u306e\u6700\u9069\u5316\u306b\u3088\u308a\u3001\u6700\u3082\u4e00\u822c\u7684\u306a\u30b1\u30fc\u30b9\u3067\u306f\u4e00\u56de\u306e\u6bd4\u8f03\u3067\u7d50\u679c\u304c\u5f97\u3089\u308c\u308b\u305f\u3081\u3001\u5e73\u5747\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-50\">2. \u65e9\u671f\u30ea\u30bf\u30fc\u30f3\u30d1\u30bf\u30fc\u30f3<\/h4>\n\n\n\n<p>\u95a2\u6570\u306e\u65e9\u3044\u6bb5\u968e\u3067match\u5f0f\u3092\u4f7f\u7528\u3057\u3066\u7279\u6b8a\u30b1\u30fc\u30b9\u3092\u51e6\u7406\u3057\u3001\u65e9\u671f\u306b\u30ea\u30bf\u30fc\u30f3\u3059\u308b\u3053\u3068\u3067\u30b3\u30fc\u30c9\u306e\u5b9f\u884c\u30d1\u30b9\u3092\u77ed\u7e2e\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function processData($data) {\n    \/\/ \u65e9\u671f\u306b\u5165\u529b\u691c\u8a3c\u30a8\u30e9\u30fc\u3092\u51e6\u7406\n    $error = match (true) {\n        !isset($data['id']) =&gt; 'ID is required',\n        !is_numeric($data['amount']) =&gt; 'Amount must be numeric',\n        $data['amount'] &lt;= 0 =&gt; 'Amount must be positive',\n        default =&gt; null,\n    };\n    \n    if ($error !== null) {\n        return ['success' =&gt; false, 'error' =&gt; $error];\n    }\n    \n    \/\/ \u3053\u3053\u304b\u3089\u6b63\u5e38\u7cfb\u306e\u51e6\u7406\uff08\u3088\u308a\u9577\u3044\u30b3\u30fc\u30c9\uff09\n    \/\/ ...\n    \n    return ['success' =&gt; true, 'result' =&gt; $result];\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30a8\u30e9\u30fc\u30b1\u30fc\u30b9\u3092\u6700\u521d\u306b\u691c\u51fa\u3057\u3066\u65e9\u671f\u306b\u30ea\u30bf\u30fc\u30f3\u3059\u308b\u3053\u3068\u3067\u3001\u7121\u99c4\u306a\u51e6\u7406\u3092\u907f\u3051\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-51\">3. \u4e0d\u8981\u306a\u8a08\u7b97\u306e\u56de\u907f<\/h4>\n\n\n\n<p>match\u5f0f\u306e\u6761\u4ef6\u90e8\u5206\u3084\u7d50\u679c\u90e8\u5206\u3067\u91cd\u3044\u8a08\u7b97\u3092\u907f\u3051\u3001\u5fc5\u8981\u306a\u5834\u5408\u306e\u307f\u5b9f\u884c\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u975e\u52b9\u7387: \u5168\u3066\u306e\u5909\u63db\u95a2\u6570\u304c\u5e38\u306b\u5b9f\u884c\u3055\u308c\u308b\n$result = match ($type) {\n    'json' =&gt; convertToJson($heavyData),  \/\/ \u5e38\u306b\u5b9f\u884c\u3055\u308c\u308b\n    'xml' =&gt; convertToXml($heavyData),    \/\/ \u5e38\u306b\u5b9f\u884c\u3055\u308c\u308b\n    'csv' =&gt; convertToCsv($heavyData),    \/\/ \u5e38\u306b\u5b9f\u884c\u3055\u308c\u308b\n    default =&gt; $heavyData,\n};\n\n\/\/ \u52b9\u7387\u7684: \u5fc5\u8981\u306a\u5909\u63db\u306e\u307f\u5b9f\u884c\u3055\u308c\u308b\n$converter = match ($type) {\n    'json' =&gt; fn($data) =&gt; convertToJson($data),\n    'xml' =&gt; fn($data) =&gt; convertToXml($data),\n    'csv' =&gt; fn($data) =&gt; convertToCsv($data),\n    default =&gt; fn($data) =&gt; $data,\n};\n\n$result = $converter($heavyData); \/\/ \u9078\u629e\u3055\u308c\u305f\u5909\u63db\u306e\u307f\u5b9f\u884c\n<\/pre>\n\n\n\n<p>\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5b9f\u969b\u306b\u5fc5\u8981\u306a\u5909\u63db\u51e6\u7406\u3060\u3051\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-52\">4. \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6d3b\u7528<\/h4>\n\n\n\n<p>\u983b\u7e41\u306b\u547c\u3073\u51fa\u3055\u308c\u308bmatch\u5f0f\u306e\u7d50\u679c\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3066\u518d\u8a08\u7b97\u3092\u907f\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getConfigValue($key) {\n    static $cache = [];\n    \n    if (!isset($cache[$key])) {\n        $cache[$key] = match ($key) {\n            'db_host' =&gt; env('DB_HOST', 'localhost'),\n            'db_port' =&gt; env('DB_PORT', '3306'),\n            'db_name' =&gt; env('DB_NAME', 'myapp'),\n            \/\/ \u4ed6\u306e\u591a\u6570\u306e\u8a2d\u5b9a\n            default =&gt; null,\n        };\n    }\n    \n    return $cache[$key];\n}\n<\/pre>\n\n\n\n<p>\u9759\u7684\u5909\u6570\u3084\u30af\u30e9\u30b9\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u3063\u305f\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u5185\u3067\u4f55\u5ea6\u3082\u540c\u3058match\u5f0f\u3092\u8a55\u4fa1\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306b\u7279\u306b\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-53\">\u9ad8\u8ca0\u8377\u74b0\u5883\u3067\u306ematch\u306e\u52b9\u679c\u7684\u306a\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<p>\u5927\u898f\u6a21\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u9ad8\u8ca0\u8377\u74b0\u5883\u3067\u306f\u3001match\u5f0f\u306e\u4f7f\u3044\u65b9\u3092\u3055\u3089\u306b\u5de5\u592b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-54\">1. \u30eb\u30fc\u30d7\u5185\u3067\u306e\u52b9\u7387\u7684\u306a\u4f7f\u7528<\/h4>\n\n\n\n<p>\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u5185\u3067match\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u6bce\u56de\u518d\u8a55\u4fa1\u3055\u308c\u308b\u305f\u3081\u6700\u9069\u5316\u304c\u91cd\u8981\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u975e\u52b9\u7387: \u30eb\u30fc\u30d7\u5185\u3067\u6bce\u56dematch\u5f0f\u3092\u8a55\u4fa1\nforeach ($items as $item) {\n    $category = match ($item-&gt;type) {\n        'book' =&gt; processBook($item),\n        'electronics' =&gt; processElectronics($item),\n        'clothing' =&gt; processClothing($item),\n        default =&gt; processGeneric($item),\n    };\n    \n    \/\/ \u51e6\u7406\u7d9a\u884c...\n}\n\n\/\/ \u52b9\u7387\u7684: \u51e6\u7406\u95a2\u6570\u3092\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u30c6\u30fc\u30d6\u30eb\u3068\u3057\u3066\u4e8b\u524d\u5b9a\u7fa9\n$processors = [\n    'book' =&gt; fn($item) =&gt; processBook($item),\n    'electronics' =&gt; fn($item) =&gt; processElectronics($item),\n    'clothing' =&gt; fn($item) =&gt; processClothing($item),\n];\n\n$defaultProcessor = fn($item) =&gt; processGeneric($item);\n\nforeach ($items as $item) {\n    $processor = $processors[$item-&gt;type] ?? $defaultProcessor;\n    $category = $processor($item);\n    \n    \/\/ \u51e6\u7406\u7d9a\u884c...\n}\n<\/pre>\n\n\n\n<p>\u30eb\u30fc\u30d7\u306e\u5916\u90e8\u3067\u9078\u629e\u30ed\u30b8\u30c3\u30af\u3092\u6e96\u5099\u3059\u308b\u3053\u3068\u3067\u3001\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-55\">2. \u30ea\u30bd\u30fc\u30b9\u96c6\u7d04\u7684\u306a\u51e6\u7406\u306e\u6700\u9069\u5316<\/h4>\n\n\n\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u306a\u3069\u3001\u30ea\u30bd\u30fc\u30b9\u3092\u591a\u304f\u4f7f\u7528\u3059\u308b\u51e6\u7406\u3092\u542b\u3080match\u5f0f\u306f\u7279\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getDatabaseConnection(string $context): PDO {\n    \/\/ \u9ad8\u983b\u5ea6\u3067\u547c\u3070\u308c\u308b\u305f\u3081\u3001\u7d50\u679c\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\n    static $connections = [];\n    \n    if (!isset($connections[$context])) {\n        $config = match ($context) {\n            'user_read' =&gt; [\n                'host' =&gt; DB_REPLICA_HOST,\n                'user' =&gt; DB_READ_USER,\n                'pass' =&gt; DB_READ_PASS,\n                'name' =&gt; DB_USER_DATABASE,\n            ],\n            'user_write' =&gt; [\n                'host' =&gt; DB_MASTER_HOST,\n                'user' =&gt; DB_WRITE_USER,\n                'pass' =&gt; DB_WRITE_PASS,\n                'name' =&gt; DB_USER_DATABASE,\n            ],\n            'analytics' =&gt; [\n                'host' =&gt; DB_ANALYTICS_HOST,\n                'user' =&gt; DB_ANALYTICS_USER,\n                'pass' =&gt; DB_ANALYTICS_PASS,\n                'name' =&gt; DB_ANALYTICS_DATABASE,\n            ],\n            default =&gt; throw new InvalidArgumentException(\"Unknown database context: {$context}\"),\n        };\n        \n        $dsn = \"mysql:host={$config['host']};dbname={$config['name']};charset=utf8mb4\";\n        $connections[$context] = new PDO($dsn, $config['user'], $config['pass'], [\n            PDO::ATTR_ERRMODE =&gt; PDO::ERRMODE_EXCEPTION,\n            PDO::ATTR_DEFAULT_FETCH_MODE =&gt; PDO::FETCH_ASSOC,\n        ]);\n    }\n    \n    return $connections[$context];\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u63a5\u7d9a\u306a\u3069\u306e\u91cd\u3044\u30ea\u30bd\u30fc\u30b9\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3066\u518d\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-56\">3. \u9ad8\u30c8\u30e9\u30d5\u30a3\u30c3\u30afAPI\u3067\u306e\u6226\u7565<\/h4>\n\n\n\n<p>\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u591a\u3044API\u3067\u306f\u3001\u4e8b\u524d\u8a08\u7b97\u3068\u9759\u7684\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u30c6\u30fc\u30d6\u30eb\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067match\u5f0f\u306e\u8a55\u4fa1\u30b3\u30b9\u30c8\u3092\u6700\u5c0f\u5316\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ API\u51e6\u7406\u306e\u305f\u3081\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3092\u4e8b\u524d\u69cb\u7bc9\n$routes = [\n    '\/api\/users' =&gt; [\n        'GET' =&gt; [UserController::class, 'index'],\n        'POST' =&gt; [UserController::class, 'store'],\n    ],\n    '\/api\/users\/{id}' =&gt; [\n        'GET' =&gt; [UserController::class, 'show'],\n        'PUT' =&gt; [UserController::class, 'update'],\n        'PATCH' =&gt; [UserController::class, 'update'],\n        'DELETE' =&gt; [UserController::class, 'destroy'],\n    ],\n];\n\n\/\/ \u30ea\u30af\u30a8\u30b9\u30c8\u51e6\u7406\n$path = $request-&gt;getPath();\n$method = $request-&gt;getMethod();\n\nif (isset($routes[$path][$method])) {\n    $handler = $routes[$path][$method];\n} else if (isset($routes[$path])) {\n    $handler = [ErrorController::class, 'methodNotAllowed'];\n} else {\n    $handler = [ErrorController::class, 'notFound'];\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u624b\u6cd5\u306f\u3001\u30cd\u30b9\u30c8\u3055\u308c\u305fmatch\u5f0f\u306e\u4ee3\u308f\u308a\u306b\u4e8b\u524d\u69cb\u7bc9\u3055\u308c\u305f\u914d\u5217\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u9ad8\u983b\u5ea6\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u51e6\u7406\u3092\u6700\u9069\u5316\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-57\">4. \u5927\u898f\u6a21\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u8003\u616e\u4e8b\u9805<\/h4>\n\n\n\n<p>\u591a\u6570\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u540c\u6642\u306b\u5229\u7528\u3059\u308b\u5927\u898f\u6a21\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u6226\u7565\u304c\u52b9\u679c\u7684\u3067\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u30b7\u30b9\u30c6\u30e0\u3068\u306e\u9023\u643a<\/strong>: Redis\/Memcached\u306a\u3069\u3092\u4f7f\u3063\u3066\u7d50\u679c\u3092\u30ad\u30e3\u30c3\u30b7\u30e5<\/li>\n\n\n\n<li><strong>\u975e\u540c\u671f\u51e6\u7406\u3078\u306e\u79fb\u884c<\/strong>: \u8907\u96d1\u306amatch\u51e6\u7406\u3092\u975e\u540c\u671f\u30ef\u30fc\u30ab\u30fc\u306b\u59d4\u8b72<\/li>\n\n\n\n<li><strong>\u4e8b\u524d\u8a08\u7b97<\/strong>: \u53ef\u80fd\u306a\u5834\u5408\u306f\u7d50\u679c\u3092\u4e8b\u524d\u8a08\u7b97\u3057\u3066\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u30c6\u30fc\u30d6\u30eb\u3092\u69cb\u7bc9<\/li>\n\n\n\n<li><strong>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong>: \u5b9f\u969b\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3092\u8b58\u5225\u3057\u3066\u6700\u9069\u5316<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001match\u5f0f\u3092\u9ad8\u8ca0\u8377\u74b0\u5883\u3067\u3082\u52b9\u7387\u7684\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u7279\u306b\u91cd\u8981\u306a\u90e8\u5206\u3067\u306f\u3001\u5e38\u306b\u5b9f\u969b\u306e\u74b0\u5883\u3067\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3092\u884c\u3044\u3001\u6700\u9069\u306a\u624b\u6cd5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-58\">match\u5f0f\u306e\u9ad8\u5ea6\u306a\u4f7f\u3044\u65b9\u3068\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<p>match\u5f0f\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3092\u7406\u89e3\u3057\u305f\u3089\u3001\u6b21\u306f\u3088\u308a\u9ad8\u5ea6\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u8907\u96d1\u306a\u6761\u4ef6\u306e\u6271\u3044\u65b9\u3001null\u5408\u4f53\u6f14\u7b97\u5b50\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u3001\u305d\u3057\u3066\u578b\u5ba3\u8a00\u3068\u7d44\u307f\u5408\u308f\u305b\u305f\u5805\u7262\u306a\u30b3\u30fc\u30c9\u8a2d\u8a08\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-59\">\u8907\u96d1\u306a\u6761\u4ef6\u3092\u6271\u3046\u305f\u3081\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u6226\u7565<\/h3>\n\n\n\n<p>\u5358\u7d14\u306a\u5024\u306e\u6bd4\u8f03\u3060\u3051\u3067\u306a\u304f\u3001match\u5f0f\u306f\u8907\u96d1\u306a\u6761\u4ef6\u5224\u5b9a\u306b\u3082\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u3067\u306f\u3001\u9ad8\u5ea6\u306a\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u6226\u7565\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-60\">\u6b63\u898f\u8868\u73fe\u3068\u7d44\u307f\u5408\u308f\u305b\u308b<\/h4>\n\n\n\n<p>match\u5f0f\u3068\u6b63\u898f\u8868\u73fe\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u5165\u529b\u5024\u306e\u30d1\u30bf\u30fc\u30f3\u306b\u57fa\u3065\u3044\u305f\u67d4\u8edf\u306a\u5206\u5c90\u51e6\u7406\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function validateInput(string $input): array {\n    return match (true) {\n        \/\/ \u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u30d1\u30bf\u30fc\u30f3\n        preg_match('\/^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,}$\/', $input) === 1 =&gt; [\n            'type' =&gt; 'email',\n            'valid' =&gt; true,\n        ],\n        \/\/ URL\u30d1\u30bf\u30fc\u30f3\n        preg_match('\/^(https?:\\\/\\\/)?([a-z0-9-]+\\.)+[a-z]{2,6}(\\\/.*)?$\/i', $input) === 1 =&gt; [\n            'type' =&gt; 'url',\n            'valid' =&gt; true,\n        ],\n        \/\/ \u96fb\u8a71\u756a\u53f7\u30d1\u30bf\u30fc\u30f3\uff08\u65e5\u672c\u5f62\u5f0f\uff09\n        preg_match('\/^0\\d{1,4}-\\d{1,4}-\\d{4}$\/', $input) === 1 =&gt; [\n            'type' =&gt; 'phone',\n            'valid' =&gt; true,\n        ],\n        \/\/ \u90f5\u4fbf\u756a\u53f7\uff08\u65e5\u672c\u5f62\u5f0f\uff09\n        preg_match('\/^\\d{3}-?\\d{4}$\/', $input) === 1 =&gt; [\n            'type' =&gt; 'postal_code',\n            'valid' =&gt; true,\n        ],\n        default =&gt; [\n            'type' =&gt; 'unknown',\n            'valid' =&gt; false,\n        ],\n    };\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n$result = validateInput('user@example.com');\n\/\/ ['type' =&gt; 'email', 'valid' =&gt; true]\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3067\u306f\u3001<code>match (true)<\/code> \u3092\u4f7f\u7528\u3057\u3066\u3001\u5404\u6761\u4ef6\u5f0f\u3092\u8a55\u4fa1\u3057\u3001\u6700\u521d\u306b <code>true<\/code> \u3068\u306a\u308b\u6761\u4ef6\u306b\u5bfe\u5fdc\u3059\u308b\u7d50\u679c\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-61\">\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u3092\u6d3b\u7528\u3057\u305f\u52d5\u7684\u8a55\u4fa1<\/h4>\n\n\n\n<p>match\u306e\u7d50\u679c\u3068\u3057\u3066\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u3092\u8fd4\u3059\u3053\u3068\u3067\u3001\u3088\u308a\u67d4\u8edf\u3067\u62e1\u5f35\u6027\u306e\u9ad8\u3044\u51e6\u7406\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getValidator(string $type): callable {\n    return match ($type) {\n        'email' =&gt; function ($value) {\n            return filter_var($value, FILTER_VALIDATE_EMAIL) !== false;\n        },\n        'url' =&gt; function ($value) {\n            return filter_var($value, FILTER_VALIDATE_URL) !== false;\n        },\n        'numeric' =&gt; function ($value) {\n            return is_numeric($value);\n        },\n        'date' =&gt; function ($value) {\n            return strtotime($value) !== false;\n        },\n        default =&gt; function ($value) {\n            return true; \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u691c\u8a3c\u3092\u901a\u904e\n        },\n    };\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n$emailValidator = getValidator('email');\n$isValid = $emailValidator('user@example.com'); \/\/ true\n<\/pre>\n\n\n\n<p>\u3053\u306e\u624b\u6cd5\u306b\u3088\u308a\u3001\u691c\u8a3c\u30ed\u30b8\u30c3\u30af\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u3001\u5fc5\u8981\u306a\u6642\u306b\u9069\u7528\u3067\u304d\u308b\u30d0\u30ea\u30c7\u30fc\u30bf\u30fc\u95a2\u6570\u3092\u52d5\u7684\u306b\u751f\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-62\">\u8907\u5408\u6761\u4ef6\u306e\u52b9\u7387\u7684\u306a\u8868\u73fe<\/h4>\n\n\n\n<p>\u8907\u6570\u306e\u6761\u4ef6\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u8907\u96d1\u306a\u5224\u5b9a\u30ed\u30b8\u30c3\u30af\u3082match\u3067\u7c21\u6f54\u306b\u8868\u73fe\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function categorizeUser(array $user): string {\n    return match (true) {\n        \/\/ VIP\u30e6\u30fc\u30b6\u30fc: \u4f1a\u54e1\u671f\u95931\u5e74\u4ee5\u4e0a AND \u8cfc\u5165\u984d10\u4e07\u5186\u4ee5\u4e0a\n        $user['membership_years'] &gt;= 1 &amp;&amp; $user['total_purchase'] &gt;= 100000 =&gt; 'VIP',\n        \n        \/\/ \u30b4\u30fc\u30eb\u30c9\u30e6\u30fc\u30b6\u30fc: \u4f1a\u54e1\u671f\u95931\u5e74\u4ee5\u4e0a OR \u8cfc\u5165\u984d10\u4e07\u5186\u4ee5\u4e0a\n        $user['membership_years'] &gt;= 1 || $user['total_purchase'] &gt;= 100000 =&gt; 'GOLD',\n        \n        \/\/ \u30b7\u30eb\u30d0\u30fc\u30e6\u30fc\u30b6\u30fc: \u4f1a\u54e1\u671f\u95933\u30f6\u6708\u4ee5\u4e0a AND \u8cfc\u5165\u984d3\u4e07\u5186\u4ee5\u4e0a\n        $user['membership_years'] &gt;= 0.25 &amp;&amp; $user['total_purchase'] &gt;= 30000 =&gt; 'SILVER',\n        \n        \/\/ \u4e00\u822c\u30e6\u30fc\u30b6\u30fc: \u4f1a\u54e1\u767b\u9332\u6e08\u307f\n        $user['registered'] === true =&gt; 'REGULAR',\n        \n        \/\/ \u305d\u306e\u4ed6: \u30b2\u30b9\u30c8\n        default =&gt; 'GUEST',\n    };\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001if-else\u306e\u9023\u9396\u3088\u308a\u3082\u8aad\u307f\u3084\u3059\u304f\u3001\u6761\u4ef6\u3068\u7d50\u679c\u306e\u95a2\u9023\u6027\u304c\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-63\">match\u3068null\u5408\u4f53\u6f14\u7b97\u5b50\uff08??\uff09\u306e\u7d44\u307f\u5408\u308f\u305b\u6d3b\u7528\u6cd5<\/h3>\n\n\n\n<p>PHP 7\u3067\u5c0e\u5165\u3055\u308c\u305fnull\u5408\u4f53\u6f14\u7b97\u5b50\uff08??\uff09\u3068match\u5f0f\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5b89\u5168\u3067\u67d4\u8edf\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-64\">\u30aa\u30d7\u30b7\u30e7\u30ca\u30eb\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u51e6\u7406<\/h4>\n\n\n\n<p>null\u306e\u53ef\u80fd\u6027\u304c\u3042\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u5b89\u5168\u306b\u51e6\u7406\u3059\u308b\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getUserResponse(array $data, ?string $format = null): string {\n    \/\/ null\u5408\u4f53\u6f14\u7b97\u5b50\u3067\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u8a2d\u5b9a\n    $format = $format ?? 'json';\n    \n    return match ($format) {\n        'json' =&gt; json_encode($data),\n        'xml' =&gt; arrayToXml($data),\n        'csv' =&gt; arrayToCsv($data),\n        'yaml' =&gt; arrayToYaml($data),\n        default =&gt; json_encode($data), \/\/ \u672a\u77e5\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u5834\u5408\u306fJSON\u3092\u8fd4\u3059\n    };\n}\n\n\/\/ \u4f7f\u7528\u4f8b\necho getUserResponse(['name' =&gt; 'John', 'age' =&gt; 30]); \/\/ JSON\u3092\u8fd4\u3059\necho getUserResponse(['name' =&gt; 'John', 'age' =&gt; 30], 'xml'); \/\/ XML\u3092\u8fd4\u3059\n<\/pre>\n\n\n\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u95a2\u6570\u306f\u5f15\u6570\u304c\u63d0\u4f9b\u3055\u308c\u306a\u3044\u5834\u5408\u3067\u3082\u9069\u5207\u306b\u52d5\u4f5c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-65\">null\u30bb\u30fc\u30d5\u306a\u51e6\u7406\u30c1\u30a7\u30fc\u30f3<\/h4>\n\n\n\n<p>null\u5024\u3092\u5b89\u5168\u306b\u51e6\u7406\u3057\u3001\u30a8\u30e9\u30fc\u3092\u9632\u6b62\u3059\u308b\u624b\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function processUserInput(?string $input = null): string {\n    \/\/ null\u5408\u4f53\u6f14\u7b97\u5b50\u3067null\u3084\u672a\u8a2d\u5b9a\u306e\u5834\u5408\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u8a2d\u5b9a\n    $sanitized = trim($input ?? '');\n    \n    return match (true) {\n        $sanitized === '' =&gt; 'Empty input',\n        strlen($sanitized) &lt; 3 =&gt; 'Input too short',\n        strlen($sanitized) &gt; 100 =&gt; 'Input too long',\n        default =&gt; 'Valid input: ' . $sanitized,\n    };\n}\n\n\/\/ \u4f7f\u7528\u4f8b\necho processUserInput(null); \/\/ \"Empty input\"\necho processUserInput('AB'); \/\/ \"Input too short\"\necho processUserInput('Hello'); \/\/ \"Valid input: Hello\"\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u7279\u306b\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u306e\u691c\u8a3c\u3084\u672a\u8a2d\u5b9a\u5024\u306e\u51e6\u7406\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-66\">\u9023\u9396\u7684\u306anull\u51e6\u7406\u3068\u6761\u4ef6\u4ed8\u304d\u30c7\u30d5\u30a9\u30eb\u30c8\u5024<\/h4>\n\n\n\n<p>\u8907\u96d1\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u5b89\u5168\u306b\u51e6\u7406\u3057\u3001\u6761\u4ef6\u306b\u57fa\u3065\u3044\u3066\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u52d5\u7684\u306b\u8a2d\u5b9a\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getPaymentMethod(?string $selectedMethod, array $user): string {\n    \/\/ \u30e6\u30fc\u30b6\u30fc\u8a2d\u5b9a\u304c\u306a\u3044\u5834\u5408\u306f\u5229\u7528\u53ef\u80fd\u306a\u652f\u6255\u3044\u65b9\u6cd5\u304b\u3089\u9078\u629e\n    return $selectedMethod ?? match (true) {\n        \/\/ \u30e6\u30fc\u30b6\u30fc\u306e\u8a2d\u5b9a\u3092\u512a\u5148\n        isset($user['preferred_payment']) =&gt; $user['preferred_payment'],\n        isset($user['last_payment_method']) =&gt; $user['last_payment_method'],\n        \n        \/\/ \u56fd\u306b\u57fa\u3065\u304f\u30c7\u30d5\u30a9\u30eb\u30c8\n        $user['country'] === 'JP' =&gt; 'konbini', \/\/ \u65e5\u672c\u306a\u3089\u30b3\u30f3\u30d3\u30cb\u6255\u3044\n        in_array($user['country'], ['US', 'UK', 'CA']) =&gt; 'credit_card',\n        in_array($user['country'], ['DE', 'FR', 'IT']) =&gt; 'sepa',\n        \n        \/\/ \u30e6\u30fc\u30b6\u30fc\u306e\u8a2d\u5b9a\u306b\u57fa\u3065\u304f\n        $user['has_paypal'] === true =&gt; 'paypal',\n        \n        \/\/ \u6700\u7d42\u7684\u306a\u30c7\u30d5\u30a9\u30eb\u30c8\n        default =&gt; 'credit_card',\n    };\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001null\u5408\u4f53\u6f14\u7b97\u5b50\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u6761\u4ef6\u306b\u57fa\u3065\u3044\u305f\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u5024\u306e\u968e\u5c64\u3092\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-67\">match\u3068\u578b\u5ba3\u8a00\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u5805\u7262\u306a\u30b3\u30fc\u30c9\u8a2d\u8a08<\/h3>\n\n\n\n<p>PHP 8\u3067\u306f\u578b\u5ba3\u8a00\u6a5f\u80fd\u304c\u5f37\u5316\u3055\u308c\u307e\u3057\u305f\u3002match\u5f0f\u3068\u578b\u5ba3\u8a00\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u3067\u578b\u5b89\u5168\u306a\u30b3\u30fc\u30c9\u3092\u8a2d\u8a08\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-68\">\u578b\u306b\u57fa\u3065\u304f\u5206\u5c90\u51e6\u7406<\/h4>\n\n\n\n<p>\u5f15\u6570\u306e\u578b\u306b\u57fa\u3065\u3044\u3066\u7570\u306a\u308b\u51e6\u7406\u3092\u884c\u3046\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/**\n * \u69d8\u3005\u306a\u578b\u306e\u5f15\u6570\u3092\u53d7\u3051\u4ed8\u3051\u3001\u9069\u5207\u306b\u51e6\u7406\u3059\u308b\u95a2\u6570\n * @param mixed $value \u4efb\u610f\u306e\u578b\u306e\u5024\n * @return string \u51e6\u7406\u7d50\u679c\n *\/\nfunction process(mixed $value): string {\n    return match (get_debug_type($value)) {\n        'null' =&gt; 'NULL value received',\n        'bool' =&gt; $value ? 'TRUE' : 'FALSE',\n        'int' =&gt; 'Integer: ' . $value,\n        'float' =&gt; 'Float: ' . number_format($value, 2),\n        'string' =&gt; 'String(' . strlen($value) . '): ' . $value,\n        'array' =&gt; 'Array with ' . count($value) . ' items',\n        'object' =&gt; 'Object of class ' . get_class($value),\n        'resource' =&gt; 'Resource of type ' . get_resource_type($value),\n        default =&gt; 'Unknown type',\n    };\n}\n\n\/\/ \u4f7f\u7528\u4f8b\necho process(null);       \/\/ \"NULL value received\"\necho process(true);       \/\/ \"TRUE\"\necho process(42);         \/\/ \"Integer: 42\"\necho process([1, 2, 3]);  \/\/ \"Array with 3 items\"\n<\/pre>\n\n\n\n<p>\u3053\u306e\u65b9\u6cd5\u306b\u3088\u308a\u3001\u69d8\u3005\u306a\u578b\u306e\u5165\u529b\u3092\u7d71\u4e00\u7684\u306b\u51e6\u7406\u3067\u304d\u3001\u578b\u3054\u3068\u306b\u9069\u5207\u306a\u5bfe\u5fdc\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-69\">\u623b\u308a\u5024\u306e\u578b\u4fdd\u8a3c<\/h4>\n\n\n\n<p>match\u306e\u7d50\u679c\u306b\u5bfe\u3057\u3066\u578b\u3092\u4fdd\u8a3c\u3059\u308b\u30d1\u30bf\u30fc\u30f3\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/**\n * \u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u304b\u3089HTTP\u30ec\u30b9\u30dd\u30f3\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u751f\u6210\n * \n * @param int $statusCode HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\n * @return ResponseInterface \u9069\u5207\u306a\u30ec\u30b9\u30dd\u30f3\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\n * @throws InvalidArgumentException \u7121\u52b9\u306a\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306e\u5834\u5408\n *\/\nfunction createResponse(int $statusCode): ResponseInterface {\n    return match ($statusCode) {\n        200, 201, 204 =&gt; new SuccessResponse($statusCode),\n        301, 302, 307, 308 =&gt; new RedirectResponse($statusCode),\n        400, 401, 403, 404, 422 =&gt; new ClientErrorResponse($statusCode),\n        500, 502, 503 =&gt; new ServerErrorResponse($statusCode),\n        default =&gt; throw new InvalidArgumentException(\"Invalid status code: {$statusCode}\"),\n    };\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u623b\u308a\u5024\u306e\u578b\u3068\u3057\u3066 <code>ResponseInterface<\/code> \u3092\u5ba3\u8a00\u3057\u3001match\u5f0f\u304c\u8fd4\u3059\u3059\u3079\u3066\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u3053\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-70\">union\u578b\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/h4>\n\n\n\n<p>PHP 8\u306eunion\u578b\u3068match\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\u67d4\u8edf\u304b\u3064\u578b\u5b89\u5168\u306a\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/**\n * ID\u304b\u3089\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u691c\u7d22\n * \n * @param int|string $id \u691c\u7d22\u3059\u308bID (\u6570\u5024\u307e\u305f\u306fUUID\u6587\u5b57\u5217)\n * @return User|Product|null \u898b\u3064\u304b\u3063\u305f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u307e\u305f\u306f\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u306fnull\n *\/\nfunction findEntity(int|string $id): User|Product|null {\n    $type = match (true) {\n        is_int($id) =&gt; 'user', \/\/ \u6570\u5024ID\u306f\u30e6\u30fc\u30b6\u30fc\n        preg_match('\/^[0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{12}$\/i', $id) === 1 =&gt; 'product', \/\/ UUID\u306f\u5546\u54c1\n        default =&gt; null,\n    };\n    \n    return match ($type) {\n        'user' =&gt; $this-&gt;userRepository-&gt;find($id),\n        'product' =&gt; $this-&gt;productRepository-&gt;findByUuid($id),\n        default =&gt; null,\n    };\n}\n<\/pre>\n\n\n\n<p>PHP 8.1\u4ee5\u964d\u3067\u306f\u3001\u3055\u3089\u306b\u6d17\u7df4\u3055\u308c\u305f\u66f8\u304d\u65b9\u3082\u53ef\u80fd\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/**\n * PHP 8.1\u4ee5\u964d\u3067\u306f\u3001\u3088\u308a\u7cbe\u7dfb\u306a\u578b\u5ba3\u8a00\u3068null\u30bb\u30fc\u30d5\u6f14\u7b97\u5b50\u304c\u4f7f\u3048\u308b\n *\/\nfunction findEntity(int|string $id): User|Product|null {\n    \/\/ \u578b\u306b\u57fa\u3065\u3044\u3066\u30ea\u30dd\u30b8\u30c8\u30ea\u3092\u9078\u629e\n    $repository = match (true) {\n        is_int($id) =&gt; $this-&gt;userRepository,\n        is_string($id) &amp;&amp; $this-&gt;isValidUuid($id) =&gt; $this-&gt;productRepository,\n        default =&gt; null,\n    };\n    \n    \/\/ null\u30bb\u30fc\u30d5\u6f14\u7b97\u5b50\u3092\u4f7f\u7528\u3057\u305f\u5b89\u5168\u306a\u547c\u3073\u51fa\u3057\n    return $repository?-&gt;find($id);\n}\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-71\">\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u3068\u306e\u9023\u643a<\/h4>\n\n\n\n<p>PHPStan\u306a\u3069\u306e\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u3068\u89aa\u548c\u6027\u306e\u9ad8\u3044match\u306e\u4f7f\u3044\u65b9\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/**\n * \u652f\u6255\u3044\u65b9\u6cd5\u306b\u57fa\u3065\u3044\u3066\u9069\u5207\u306a\u51e6\u7406\u30af\u30e9\u30b9\u3092\u53d6\u5f97\n * \n * @param PaymentMethod $method \u652f\u6255\u3044\u65b9\u6cd5\u306e\u5217\u6319\u578b\n * @return PaymentProcessorInterface \u652f\u6255\u3044\u51e6\u7406\u30af\u30e9\u30b9\n * @throws UnsupportedPaymentMethodException \u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u306a\u3044\u652f\u6255\u3044\u65b9\u6cd5\u306e\u5834\u5408\n *\/\nfunction getPaymentProcessor(PaymentMethod $method): PaymentProcessorInterface {\n    return match ($method) {\n        PaymentMethod::CREDIT_CARD =&gt; new CreditCardProcessor(),\n        PaymentMethod::PAYPAL =&gt; new PayPalProcessor(),\n        PaymentMethod::BANK_TRANSFER =&gt; new BankTransferProcessor(),\n        PaymentMethod::CRYPTO =&gt; new CryptoProcessor(),\n        \/\/ \u5217\u6319\u578b\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3059\u3079\u3066\u306e\u30b1\u30fc\u30b9\u3092\u7db2\u7f85\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u9759\u7684\u89e3\u6790\u3067\u691c\u8a3c\u53ef\u80fd\n    };\n}\n<\/pre>\n\n\n\n<p>PHPDoc\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u3068\u306e\u9023\u643a\u3092\u3055\u3089\u306b\u5f37\u5316\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/**\n * \u30e6\u30fc\u30b6\u30fc\u30ed\u30fc\u30eb\u306b\u57fa\u3065\u3044\u3066\u9069\u5207\u306a\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3092\u8fd4\u3059\n * \n * @param UserRole $role \u30e6\u30fc\u30b6\u30fc\u30ed\u30fc\u30eb\n * @return Dashboard \u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306e\u30d9\u30fc\u30b9\u30af\u30e9\u30b9\n *\/\nfunction getDashboard(UserRole $role): Dashboard {\n    \/\/ PHPDoc\u306b\u3088\u308a\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u304c\u623b\u308a\u5024\u306e\u578b\u3092\u6b63\u78ba\u306b\u628a\u63e1\u3067\u304d\u308b\n    \/** @var Dashboard *\/\n    return match ($role) {\n        UserRole::ADMIN =&gt; new AdminDashboard(),\n        UserRole::MANAGER =&gt; new ManagerDashboard(),\n        UserRole::USER =&gt; new UserDashboard(),\n        default =&gt; throw new InvalidArgumentException(\"Unsupported role: {$role-&gt;value}\"),\n    };\n}\n<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u9ad8\u5ea6\u306a\u4f7f\u3044\u65b9\u3092\u7fd2\u5f97\u3059\u308b\u3053\u3068\u3067\u3001match\u5f0f\u306e\u771f\u306e\u529b\u3092\u5f15\u304d\u51fa\u3057\u3001\u3088\u308a\u5805\u7262\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044PHP\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u8907\u96d1\u306a\u6761\u4ef6\u5206\u5c90\u3082\u3001match\u5f0f\u3068PHP 8\u306e\u65b0\u6a5f\u80fd\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u9a5a\u304f\u307b\u3069\u7c21\u6f54\u304b\u3064\u578b\u5b89\u5168\u306b\u8868\u73fe\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-72\">match\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<p>match\u5f0f\u306f\u5f37\u529b\u306a\u6a5f\u80fd\u3067\u3059\u304c\u3001\u9069\u5207\u306b\u4f7f\u7528\u3057\u306a\u3044\u3068\u4e88\u671f\u305b\u306c\u30a8\u30e9\u30fc\u3084\u4fdd\u5b88\u6027\u306e\u4f4e\u3044\u30b3\u30fc\u30c9\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001match\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-73\">match\u3067\u9665\u308a\u304c\u3061\u306a\u4e00\u822c\u7684\u306a\u30df\u30b9\u3068\u5bfe\u7b56<\/h3>\n\n\n\n<p>match\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u969b\u306b\u3088\u304f\u898b\u3089\u308c\u308b\u30df\u30b9\u3068\u305d\u306e\u5bfe\u7b56\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-74\">1. \u6761\u4ef6\u6f0f\u308c\u306b\u3088\u308bUnhandledMatchError<\/h4>\n\n\n\n<p>match\u5f0f\u3067\u306f\u3001\u30de\u30c3\u30c1\u3059\u308b\u6761\u4ef6\u304c\u306a\u304f\u3001\u304b\u3064default\u53e5\u304c\u306a\u3044\u5834\u5408\u3001<code>UnhandledMatchError<\/code>\u4f8b\u5916\u304c\u30b9\u30ed\u30fc\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\nfunction getDayType(string $day): string {\n    return match ($day) {\n        'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday' =&gt; 'Weekday',\n        'Saturday', 'Sunday' =&gt; 'Weekend',\n        \/\/ default\u30b1\u30fc\u30b9\u304c\u306a\u3044\uff01\n    };\n}\n\n\/\/ 'Holiday'\u3092\u6e21\u3059\u3068\u30a8\u30e9\u30fc\u304c\u767a\u751f\ngetDayType('Holiday'); \/\/ Fatal error: Uncaught UnhandledMatchError\n<\/pre>\n\n\n\n<p><strong>\u5bfe\u7b56<\/strong>: \u5e38\u306bdefault\u53e5\u3092\u542b\u3081\u308b\u3053\u3068\u3067\u3053\u306e\u554f\u984c\u3092\u56de\u907f\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6539\u5584\u30b3\u30fc\u30c9\nfunction getDayType(string $day): string {\n    return match ($day) {\n        'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday' =&gt; 'Weekday',\n        'Saturday', 'Sunday' =&gt; 'Weekend',\n        default =&gt; 'Unknown', \/\/ default\u30b1\u30fc\u30b9\u3092\u8ffd\u52a0\n    };\n}\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-75\">2. \u53b3\u5bc6\u6bd4\u8f03\u306b\u3088\u308b\u4e88\u671f\u305b\u306c\u4e0d\u4e00\u81f4<\/h4>\n\n\n\n<p>match\u5f0f\u306f <code>===<\/code> (\u53b3\u5bc6\u6bd4\u8f03)\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u5024\u306e\u578b\u304c\u7570\u306a\u308b\u3068\u4e00\u81f4\u3057\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\nfunction getStatus(int $code): string {\n    return match ($code) {\n        200 =&gt; 'OK',\n        404 =&gt; 'Not Found',\n        500 =&gt; 'Server Error',\n        default =&gt; 'Unknown',\n    };\n}\n\n\/\/ \u6587\u5b57\u5217\u3068\u3057\u3066'200'\u3092\u6e21\u3059\u3068\u3001\u578b\u304c\u7570\u306a\u308b\u305f\u3081\u4e00\u81f4\u3057\u306a\u3044\necho getStatus('200'); \/\/ \u51fa\u529b: Unknown \uff08\u671f\u5f85\u3057\u3066\u3044\u305f\u7d50\u679c\u306f'OK'\uff09\n<\/pre>\n\n\n\n<p><strong>\u5bfe\u7b56<\/strong>: \u5165\u529b\u5024\u306e\u578b\u3092\u660e\u793a\u7684\u306b\u5909\u63db\u3059\u308b\u304b\u3001<code>match (true)<\/code>\u3092\u4f7f\u3063\u3066\u6761\u4ef6\u5f0f\u3067\u306e\u6bd4\u8f03\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5bfe\u7b561: \u578b\u5909\u63db\u3092\u884c\u3046\nfunction getStatus($code): string {\n    \/\/ \u660e\u793a\u7684\u306a\u578b\u5909\u63db\n    $code = (int) $code;\n    \n    return match ($code) {\n        200 =&gt; 'OK',\n        404 =&gt; 'Not Found',\n        500 =&gt; 'Server Error',\n        default =&gt; 'Unknown',\n    };\n}\n\n\/\/ \u5bfe\u7b562: match (true)\u3092\u4f7f\u7528\u3057\u3066\u6761\u4ef6\u5f0f\u3067\u6bd4\u8f03\nfunction getStatusAlt($code): string {\n    return match (true) {\n        $code == 200 =&gt; 'OK', \/\/ ==\u3067\u7de9\u3044\u6bd4\u8f03\n        $code == 404 =&gt; 'Not Found',\n        $code == 500 =&gt; 'Server Error',\n        default =&gt; 'Unknown',\n    };\n}\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-76\">3. \u6761\u4ef6\u9806\u5e8f\u306e\u8aa4\u308a<\/h4>\n\n\n\n<p>match\u5f0f\u3067\u306f\u3001\u6700\u521d\u306b\u4e00\u81f4\u3057\u305f\u6761\u4ef6\u306e\u7d50\u679c\u306e\u307f\u304c\u8fd4\u3055\u308c\u308b\u305f\u3081\u3001\u6761\u4ef6\u306e\u9806\u5e8f\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\nfunction getCategoryName(array $product): string {\n    return match (true) {\n        $product['price'] &gt; 0 =&gt; 'Regular Product',\n        $product['price'] &gt; 1000 =&gt; 'Premium Product', \/\/ \u3053\u306e\u6761\u4ef6\u306f\u6c7a\u3057\u3066\u5b9f\u884c\u3055\u308c\u306a\u3044\uff01\n        $product['price'] === 0 =&gt; 'Free Product',\n        default =&gt; 'Unknown Product',\n    };\n}\n<\/pre>\n\n\n\n<p><strong>\u5bfe\u7b56<\/strong>: \u6761\u4ef6\u3092\u9069\u5207\u306a\u9806\u5e8f\u306b\u4e26\u3079\u66ff\u3048\u307e\u3059\u3002\u3088\u308a\u5177\u4f53\u7684\/\u9650\u5b9a\u7684\u306a\u6761\u4ef6\u3092\u5148\u306b\u914d\u7f6e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6539\u5584\u30b3\u30fc\u30c9\nfunction getCategoryName(array $product): string {\n    return match (true) {\n        $product['price'] &gt; 1000 =&gt; 'Premium Product', \/\/ \u3088\u308a\u5177\u4f53\u7684\u306a\u6761\u4ef6\u3092\u5148\u306b\n        $product['price'] &gt; 0 =&gt; 'Regular Product',\n        $product['price'] === 0 =&gt; 'Free Product',\n        default =&gt; 'Unknown Product',\n    };\n}\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-77\">4. null\u3084\u672a\u5b9a\u7fa9\u5024\u306e\u51e6\u7406\u6f0f\u308c<\/h4>\n\n\n\n<p>\u5165\u529b\u5024\u304c<code>null<\/code>\u3084\u672a\u5b9a\u7fa9\u306e\u5834\u5408\u306b\u9069\u5207\u306b\u51e6\u7406\u3057\u3066\u3044\u306a\u3044\u3068\u4e88\u671f\u305b\u306c\u7d50\u679c\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\nfunction getUserType(?string $role): string {\n    return match ($role) {\n        'admin' =&gt; 'Administrator',\n        'editor' =&gt; 'Content Editor',\n        'user' =&gt; 'Regular User',\n        default =&gt; 'Guest',\n    };\n}\n\n\/\/ $role\u304cnull\u306e\u5834\u5408\u306f\uff1f\necho getUserType(null); \/\/ 'Guest'\u304c\u8fd4\u308b\u304c\u3001\u610f\u56f3\u3057\u3066\u3044\u308b\u304b\u4e0d\u660e\u78ba\n<\/pre>\n\n\n\n<p><strong>\u5bfe\u7b56<\/strong>: null\u3092\u660e\u793a\u7684\u306b\u51e6\u7406\u3059\u308b\u304b\u3001null\u5408\u4f53\u6f14\u7b97\u5b50\u3067\u4e8b\u524d\u306b\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5bfe\u7b561: null\u3092\u660e\u793a\u7684\u306b\u51e6\u7406\nfunction getUserType(?string $role): string {\n    return match ($role) {\n        'admin' =&gt; 'Administrator',\n        'editor' =&gt; 'Content Editor',\n        'user' =&gt; 'Regular User',\n        null =&gt; 'Guest', \/\/ null\u3092\u660e\u793a\u7684\u306b\u51e6\u7406\n        default =&gt; 'Unknown',\n    };\n}\n\n\/\/ \u5bfe\u7b562: null\u5408\u4f53\u6f14\u7b97\u5b50\u3067\u4e8b\u524d\u306b\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u8a2d\u5b9a\nfunction getUserTypeAlt(?string $role): string {\n    $role = $role ?? 'guest'; \/\/ null\u306e\u5834\u5408\u306fguest\u3068\u3057\u3066\u6271\u3046\n    \n    return match ($role) {\n        'admin' =&gt; 'Administrator',\n        'editor' =&gt; 'Content Editor',\n        'user' =&gt; 'Regular User',\n        'guest' =&gt; 'Guest',\n        default =&gt; 'Unknown',\n    };\n}\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-78\">\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u3092\u9ad8\u3081\u308bmatch\u306e\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<p>match\u5f0f\u3092\u4f7f\u3063\u305f\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u3084\u3059\u304f\u4fdd\u5b88\u3057\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-79\">1. \u4e00\u8cab\u3057\u305f\u30b3\u30fc\u30c9\u30d5\u30a9\u30fc\u30de\u30c3\u30c8<\/h4>\n\n\n\n<p>\u9069\u5207\u306a\u30a4\u30f3\u30c7\u30f3\u30c8\u3068\u30b9\u30da\u30fc\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3001match\u5f0f\u3092\u8aad\u307f\u3084\u3059\u304f\u6574\u5f62\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u60aa\u3044\u4f8b: \u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u304c\u4e0d\u7d71\u4e00\n$status = match ($code) {\n200 =&gt; 'OK',\n    404 =&gt; 'Not Found',\n  500 =&gt; 'Server Error',\n default =&gt; 'Unknown'\n};\n\n\/\/ \u826f\u3044\u4f8b: \u4e00\u8cab\u3057\u305f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\n$status = match ($code) {\n    200 =&gt; 'OK',\n    404 =&gt; 'Not Found',\n    500 =&gt; 'Server Error',\n    default =&gt; 'Unknown',\n};\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-80\">2. \u9577\u3044\u6761\u4ef6\u306e\u9069\u5207\u306a\u5206\u5272<\/h4>\n\n\n\n<p>\u9577\u3044\u6761\u4ef6\u5f0f\u306f\u8907\u6570\u884c\u306b\u5206\u5272\u3057\u3001\u9069\u5207\u306a\u30b3\u30e1\u30f3\u30c8\u3092\u4ed8\u3051\u308b\u3053\u3068\u3067\u8aad\u307f\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u60aa\u3044\u4f8b: \u9577\u3044\u6761\u4ef6\u3092\u4e00\u884c\u306b\u8a70\u3081\u8fbc\u3080\n$category = match (true) {\n    $product['price'] &gt; 1000 &amp;&amp; $product['stock'] &lt; 10 &amp;&amp; $product['rating'] &gt; 4.5 =&gt; 'Premium Limited',\n    $product['price'] &gt; 1000 &amp;&amp; $product['stock'] &gt; 10 =&gt; 'Premium Regular',\n    $product['price'] &gt; 500 &amp;&amp; $product['price'] &lt;= 1000 =&gt; 'Standard',\n    default =&gt; 'Basic',\n};\n\n\/\/ \u826f\u3044\u4f8b: \u9577\u3044\u6761\u4ef6\u3092\u8907\u6570\u884c\u306b\u5206\u5272\u3057\u3066\u30b3\u30e1\u30f3\u30c8\u4ed8\u304d\n$category = match (true) {\n    \/\/ \u30d7\u30ec\u30df\u30a2\u30e0\u9650\u5b9a\u5546\u54c1\uff08\u9ad8\u4fa1\u683c\u30fb\u5c11\u91cf\u5728\u5eab\u30fb\u9ad8\u8a55\u4fa1\uff09\n    $product['price'] &gt; 1000 &amp;&amp; \n    $product['stock'] &lt; 10 &amp;&amp; \n    $product['rating'] &gt; 4.5 =&gt; 'Premium Limited',\n    \n    \/\/ \u901a\u5e38\u306e\u30d7\u30ec\u30df\u30a2\u30e0\u5546\u54c1\uff08\u9ad8\u4fa1\u683c\u30fb\u5341\u5206\u306a\u5728\u5eab\uff09\n    $product['price'] &gt; 1000 &amp;&amp; \n    $product['stock'] &gt; 10 =&gt; 'Premium Regular',\n    \n    \/\/ \u6a19\u6e96\u5546\u54c1\uff08\u4e2d\u4fa1\u683c\u5e2f\uff09\n    $product['price'] &gt; 500 &amp;&amp; \n    $product['price'] &lt;= 1000 =&gt; 'Standard',\n    \n    \/\/ \u57fa\u672c\u5546\u54c1\uff08\u305d\u306e\u4ed6\uff09\n    default =&gt; 'Basic',\n};\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-81\">3. \u660e\u78ba\u306a\u610f\u56f3\u306e\u8868\u73fe<\/h4>\n\n\n\n<p>\u5909\u6570\u540d\u3084\u30b3\u30e1\u30f3\u30c8\u3092\u4f7f\u3063\u3066\u3001match\u5f0f\u306e\u610f\u56f3\u3092\u660e\u78ba\u306b\u8868\u73fe\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u60aa\u3044\u4f8b: \u610f\u56f3\u304c\u4e0d\u660e\u77ad\n$result = match ($value % 2) {\n    0 =&gt; 'A',\n    default =&gt; 'B',\n};\n\n\/\/ \u826f\u3044\u4f8b: \u5909\u6570\u540d\u3068\u30b3\u30e1\u30f3\u30c8\u3067\u610f\u56f3\u3092\u660e\u78ba\u306b\n\/\/ \u5076\u6570\u304b\u5947\u6570\u304b\u3067\u8868\u793a\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u5207\u308a\u66ff\u3048\n$parityMessage = match ($value % 2) {\n    0 =&gt; 'Even number', \/\/ \u5076\u6570\n    default =&gt; 'Odd number', \/\/ \u5947\u6570\n};\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-82\">4. \u8907\u96d1\u306a\u51e6\u7406\u306e\u5206\u96e2<\/h4>\n\n\n\n<p>match\u5f0f\u306e\u4e2d\u306b\u8907\u96d1\u306a\u30ed\u30b8\u30c3\u30af\u3092\u8a70\u3081\u8fbc\u307f\u3059\u304e\u305a\u3001\u4e8b\u524d\u306b\u5909\u6570\u306b\u5206\u96e2\u3059\u308b\u3053\u3068\u3067\u53ef\u8aad\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u60aa\u3044\u4f8b: match\u5185\u306b\u8907\u96d1\u306a\u30ed\u30b8\u30c3\u30af\u3092\u8a70\u3081\u8fbc\u3080\n$discount = match (true) {\n    $user-&gt;isPremium() &amp;&amp; count($items) &gt; 5 &amp;&amp; $subtotal &gt; 10000 =&gt; calculateComplexDiscount($subtotal, $items, $user-&gt;getLevel(), 0.15),\n    $user-&gt;isPremium() || count($items) &gt; 10 =&gt; calculateComplexDiscount($subtotal, $items, $user-&gt;getLevel(), 0.10),\n    $subtotal &gt; 5000 =&gt; $subtotal * 0.05,\n    default =&gt; 0,\n};\n\n\/\/ \u826f\u3044\u4f8b: \u8907\u96d1\u306a\u30ed\u30b8\u30c3\u30af\u3092\u4e8b\u524d\u306b\u5909\u6570\u306b\u5206\u96e2\n$isPremiumWithLargeOrder = $user-&gt;isPremium() &amp;&amp; count($items) &gt; 5 &amp;&amp; $subtotal &gt; 10000;\n$isPremiumOrBulkOrder = $user-&gt;isPremium() || count($items) &gt; 10;\n$isModerateOrder = $subtotal &gt; 5000;\n\n$discount = match (true) {\n    $isPremiumWithLargeOrder =&gt; calculatePremiumDiscount($subtotal, $user, $items),\n    $isPremiumOrBulkOrder =&gt; calculateStandardDiscount($subtotal, $user, $items),\n    $isModerateOrder =&gt; $subtotal * 0.05,\n    default =&gt; 0,\n};\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-83\">\u30c1\u30fc\u30e0\u3067\u306e\u958b\u767a\u306b\u304a\u3051\u308bmatch\u306e\u7d71\u4e00\u7684\u306a\u4f7f\u7528\u30eb\u30fc\u30eb<\/h3>\n\n\n\n<p>\u30c1\u30fc\u30e0\u958b\u767a\u3067\u306f\u3001match\u5f0f\u306e\u4f7f\u7528\u306b\u95a2\u3059\u308b\u7d71\u4e00\u7684\u306a\u30eb\u30fc\u30eb\u3092\u8a2d\u3051\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u30c1\u30fc\u30e0\u3067\u63a1\u7528\u3067\u304d\u308b\u30eb\u30fc\u30eb\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-84\">1. \u57fa\u672c\u7684\u306a\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04<\/h4>\n\n\n\n<p>PSR-12\u306a\u3069\u306e\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04\u306b\u57fa\u3065\u3044\u3066\u3001\u4e00\u8cab\u3057\u305f\u30b9\u30bf\u30a4\u30eb\u3067match\u5f0f\u3092\u66f8\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ PSR-12\u306b\u6e96\u62e0\u3057\u305fmatch\u5f0f\u306e\u4f8b\n$result = match ($condition) {\n    'value1' =&gt; $this-&gt;handleValue1(),\n    'value2' =&gt; $this-&gt;handleValue2(),\n    default =&gt; $this-&gt;handleDefault(),\n};\n<\/pre>\n\n\n\n<p>\u4e3b\u306a\u30eb\u30fc\u30eb\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>match \u30ad\u30fc\u30ef\u30fc\u30c9\u3068\u62ec\u5f27\u306e\u9593\u306b\u30b9\u30da\u30fc\u30b9\u3092\u5165\u308c\u308b: <code>match ($value)<\/code><\/li>\n\n\n\n<li>\u6761\u4ef6\u3068\u7d50\u679c\u306e\u9593\u306b\u30b9\u30da\u30fc\u30b9\u3092\u5165\u308c\u308b: <code>condition =&gt; result<\/code><\/li>\n\n\n\n<li>\u8907\u6570\u6761\u4ef6\u306e\u5834\u5408\u3001\u30ab\u30f3\u30de\u306e\u5f8c\u306b\u30b9\u30da\u30fc\u30b9\u3092\u5165\u308c\u308b: <code>'a', 'b' =&gt; 'result'<\/code><\/li>\n\n\n\n<li>\u6700\u5f8c\u306e\u6761\u4ef6\u306e\u5f8c\u306b\u3082\u30ab\u30f3\u30de\u3092\u5165\u308c\u308b\uff08\u7279\u306b\u8907\u6570\u884c\u306b\u5206\u3051\u308b\u5834\u5408\uff09<\/li>\n\n\n\n<li>\u6761\u4ef6\u304c\u8907\u6570\u884c\u306b\u6e21\u308b\u5834\u5408\u306f\u9069\u5207\u306b\u30a4\u30f3\u30c7\u30f3\u30c8\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-85\">2. \u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u306e\u30c1\u30a7\u30c3\u30af\u30dd\u30a4\u30f3\u30c8<\/h4>\n\n\n\n<p>\u30c1\u30fc\u30e0\u3067\u306e\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u6642\u306b\u3001match\u5f0f\u306b\u3064\u3044\u3066\u4ee5\u4e0b\u306e\u70b9\u3092\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7db2\u7f85\u6027<\/strong>: default\u53e5\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li><strong>\u9806\u5e8f<\/strong>: \u6761\u4ef6\u306e\u9806\u5e8f\u304c\u9069\u5207\u304b\uff08\u7279\u306b\u91cd\u8907\u53ef\u80fd\u6027\u304c\u3042\u308b\u5834\u5408\uff09<\/li>\n\n\n\n<li><strong>\u578b\u51e6\u7406<\/strong>: \u53b3\u5bc6\u6bd4\u8f03\u306b\u3088\u308b\u554f\u984c\u304c\u8003\u616e\u3055\u308c\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li><strong>\u53ef\u8aad\u6027<\/strong>: \u30b3\u30fc\u30c9\u306e\u610f\u56f3\u304c\u660e\u78ba\u304b\u3001\u9577\u3044\u6761\u4ef6\u304c\u9069\u5207\u306b\u6574\u5f62\u3055\u308c\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li><strong>\u4fdd\u5b88\u6027<\/strong>: \u8907\u96d1\u306a\u30ed\u30b8\u30c3\u30af\u304c\u9069\u5207\u306b\u5206\u96e2\u3055\u308c\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/strong>: \u983b\u51fa\u6761\u4ef6\u306e\u4f4d\u7f6e\u304c\u6700\u9069\u304b<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30ec\u30d3\u30e5\u30fc\u304c\u5fc5\u8981\u306a\u30b3\u30fc\u30c9\u4f8b\nfunction getDiscountRate($order) {\n    return match (true) {\n        $order-&gt;items &gt; 10 =&gt; 0.2,\n        $order-&gt;total &gt; 10000 =&gt; 0.15,\n        $order-&gt;isSpecial() =&gt; 0.1,\n        $order-&gt;items &gt; 5 =&gt; 0.05\n    };\n}\n\n\/\/ \u30ec\u30d3\u30e5\u30fc\u30b3\u30e1\u30f3\u30c8\u4f8b\uff1a\n\/\/ 1. default\u53e5\u304c\u6b20\u3051\u3066\u3044\u308b\uff08UnhandledMatchError\u306e\u30ea\u30b9\u30af\uff09\n\/\/ 2. \u6761\u4ef6\u306e\u9806\u5e8f\u304c\u4e0d\u9069\u5207\uff08$order-&gt;items &gt; 5\u304c$order-&gt;items &gt; 10\u3088\u308a\u5f8c\uff09\n\/\/ 3. \u30c8\u30ec\u30a4\u30ea\u30f3\u30b0\u30ab\u30f3\u30de\u304c\u306a\u3044\uff08\u62e1\u5f35\u6027\u3078\u306e\u914d\u616e\uff09\n\/\/ 4. \u578b\u5ba3\u8a00\u304c\u306a\u3044\uff08$order\u306e\u578b\u304c\u660e\u78ba\u3067\u306a\u3044\uff09\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-86\">3. \u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u3068\u65b0\u30e1\u30f3\u30d0\u30fc\u3078\u306e\u6559\u80b2<\/h4>\n\n\n\n<p>\u30c1\u30fc\u30e0\u5185\u3067match\u5f0f\u306e\u4f7f\u7528\u3092\u4fc3\u9032\u3059\u308b\u305f\u3081\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u3068\u6559\u80b2\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/**\n * \u6ce8\u6587\u30b9\u30c6\u30fc\u30bf\u30b9\u306b\u57fa\u3065\u3044\u3066\u9069\u5207\u306a\u30e9\u30d9\u30eb\u30af\u30e9\u30b9\u3092\u53d6\u5f97\n *\n * @param OrderStatus $status \u6ce8\u6587\u30b9\u30c6\u30fc\u30bf\u30b9\uff08\u5217\u6319\u578b\uff09\n * @return string CSS\u30af\u30e9\u30b9\u540d\n *\/\nfunction getStatusLabelClass(OrderStatus $status): string {\n    \/\/ \u30b9\u30c6\u30fc\u30bf\u30b9\u306b\u5fdc\u3058\u305fBootstrap\u306e\u30a2\u30e9\u30fc\u30c8\u30af\u30e9\u30b9\u3092\u8fd4\u3059\n    return match ($status) {\n        OrderStatus::PENDING =&gt; 'alert-warning',   \/\/ \u4fdd\u7559\u4e2d: \u9ec4\u8272\n        OrderStatus::PROCESSING =&gt; 'alert-info',   \/\/ \u51e6\u7406\u4e2d: \u9752\u8272\n        OrderStatus::COMPLETED =&gt; 'alert-success', \/\/ \u5b8c\u4e86: \u7dd1\u8272\n        OrderStatus::CANCELLED =&gt; 'alert-danger',  \/\/ \u30ad\u30e3\u30f3\u30bb\u30eb: \u8d64\u8272\n        OrderStatus::REFUNDED =&gt; 'alert-secondary', \/\/ \u8fd4\u91d1\u6e08\u307f: \u30b0\u30ec\u30fc\n        default =&gt; 'alert-light', \/\/ \u305d\u306e\u4ed6: \u8584\u3044\u30b0\u30ec\u30fc\n    };\n}\n<\/pre>\n\n\n\n<p>\u65b0\u30e1\u30f3\u30d0\u30fc\u3078\u306e\u6559\u80b2\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>switch\u6587\u3068\u6bd4\u8f03\u3057\u305fmatch\u306e\u5229\u70b9\u3068\u6ce8\u610f\u70b9<\/li>\n\n\n\n<li>UnhandledMatchError\u306a\u3069\u306e\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u3068\u5bfe\u51e6\u6cd5<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u30b1\u30fc\u30b9\u3067match\u3092\u4f7f\u3046\u3079\u304d\u6642\u3068\u907f\u3051\u308b\u3079\u304d\u6642<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04\u3067\u306ematch\u5f0f\u306e\u66f8\u304d\u65b9<\/li>\n\n\n\n<li>\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u6642\u306eswitch\u6587\u304b\u3089match\u3078\u306e\u5909\u63db\u624b\u6cd5<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068\u7d71\u4e00\u30eb\u30fc\u30eb\u3092\u63a1\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c1\u30fc\u30e0\u5168\u4f53\u304cmatch\u5f0f\u306e\u5229\u70b9\u3092\u6d3b\u304b\u3057\u3064\u3064\u3001\u4fdd\u5b88\u6027\u3068\u5805\u7262\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002match\u5f0f\u306f\u5f37\u529b\u306a\u6a5f\u80fd\u3067\u3059\u304c\u3001\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u305d\u306e\u771f\u4fa1\u3092\u767a\u63ee\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-87\">PHP\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306b\u304a\u3051\u308bmatch\u306e\u6d3b\u7528\u4e8b\u4f8b<\/h2>\n\n\n\n<p>PHP 8\u306ematch\u5f0f\u306f\u5358\u72ec\u3067\u4f7f\u3046\u3060\u3051\u3067\u306a\u304f\u3001\u5404\u7a2e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306b\u7d44\u307f\u8fbc\u3080\u3053\u3068\u3067\u305d\u306e\u6a5f\u80fd\u3092\u3055\u3089\u306b\u5f37\u5316\u3067\u304d\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u4e3b\u8981\u306aPHP\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306b\u304a\u3051\u308bmatch\u5f0f\u306e\u6d3b\u7528\u4e8b\u4f8b\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-88\">Laravel\u3067\u306ematch\u5f0f\u306e\u52b9\u679c\u7684\u306a\u4f7f\u7528\u4f8b<\/h3>\n\n\n\n<p>Laravel 8\u4ee5\u964d\u306fPHP 8.0\u3092\u5b8c\u5168\u306b\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u30019\u4ee5\u964d\u3067\u306fPHP 8.1\u304c\u6700\u5c0f\u8981\u4ef6\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002match\u5f0f\u3092Laravel\u306e\u3055\u307e\u3056\u307e\u306a\u6a5f\u80fd\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u7c21\u6f54\u3067\u53ef\u8aad\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-89\">Eloquent\u30e2\u30c7\u30eb\u3067\u306e\u6d3b\u7528<\/h4>\n\n\n\n<p>Eloquent\u30e2\u30c7\u30eb\u306e\u30a2\u30af\u30bb\u30b5\u3084\u30df\u30e5\u30fc\u30c6\u30fc\u30bf\u3067match\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u6761\u4ef6\u5206\u5c90\u3092\u7c21\u6f54\u306b\u8868\u73fe\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ User\u30e2\u30c7\u30eb\u3067\u306e\u30a2\u30af\u30bb\u30b5\u306e\u4f8b\npublic function getFullNameAttribute(): string\n{\n    return match ($this-&gt;name_format) {\n        'western' =&gt; \"{$this-&gt;first_name} {$this-&gt;last_name}\",\n        'eastern' =&gt; \"{$this-&gt;last_name} {$this-&gt;first_name}\",\n        'initial' =&gt; \"{$this-&gt;first_name[0]}. {$this-&gt;last_name}\",\n        default =&gt; $this-&gt;username,\n    };\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u540d\u524d\u5f62\u5f0f\u306b\u57fa\u3065\u3044\u3066\u9069\u5207\u306a\u30d5\u30eb\u30cd\u30fc\u30e0\u5f62\u5f0f\u3092\u8fd4\u3057\u307e\u3059\u3002match\u5f0f\u306e\u7c21\u6f54\u3055\u306b\u3088\u308a\u3001\u5f93\u6765\u306eswitch\u6587\u3084if-else\u3088\u308a\u3082\u8aad\u307f\u3084\u3059\u3044\u30b3\u30fc\u30c9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-90\">Blade\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u306e\u62e1\u5f35<\/h4>\n\n\n\n<p>\u30ab\u30b9\u30bf\u30e0Blade\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3092\u4f5c\u6210\u3059\u308b\u969b\u306b\u3082match\u5f0f\u304c\u5f79\u7acb\u3061\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ AppServiceProvider\u306eboot()\u30e1\u30bd\u30c3\u30c9\u5185\nBlade::directive('status', function ($expression) {\n    return \"&lt;?php echo match($expression) {\n        'pending' =&gt; '&lt;span class=\\\"badge bg-warning\\\"&gt;\u4fdd\u7559\u4e2d&lt;\/span&gt;',\n        'approved' =&gt; '&lt;span class=\\\"badge bg-success\\\"&gt;\u627f\u8a8d\u6e08&lt;\/span&gt;',\n        'rejected' =&gt; '&lt;span class=\\\"badge bg-danger\\\"&gt;\u5374\u4e0b&lt;\/span&gt;',\n        default =&gt; '&lt;span class=\\\"badge bg-secondary\\\"&gt;\u4e0d\u660e&lt;\/span&gt;',\n    }; ?&gt;\";\n});\n\n\/\/ Blade\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3067\u306e\u4f7f\u7528\u4f8b\n@status($order-&gt;status)\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30ab\u30b9\u30bf\u30e0\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u306b\u3088\u308a\u3001\u30b9\u30c6\u30fc\u30bf\u30b9\u5024\u306b\u57fa\u3065\u3044\u3066\u9069\u5207\u306aHTML\u51fa\u529b\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-91\">\u30dd\u30ea\u30b7\u30fc\u3067\u306e\u6a29\u9650\u5224\u5b9a<\/h4>\n\n\n\n<p>\u8a8d\u53ef\u30dd\u30ea\u30b7\u30fc\u3067\u306e\u30e6\u30fc\u30b6\u30fc\u6a29\u9650\u5224\u5b9a\u306bmatch\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u8907\u96d1\u306a\u6761\u4ef6\u5206\u5c90\u3082\u7c21\u6f54\u306b\u8868\u73fe\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ ArticlePolicy\u30af\u30e9\u30b9\u5185\npublic function update(User $user, Article $article): bool\n{\n    return match ($user-&gt;role) {\n        'admin' =&gt; true,  \/\/ \u7ba1\u7406\u8005\u306f\u5e38\u306b\u66f4\u65b0\u53ef\u80fd\n        'editor' =&gt; true, \/\/ \u7de8\u96c6\u8005\u3082\u5e38\u306b\u66f4\u65b0\u53ef\u80fd\n        'author' =&gt; $article-&gt;user_id === $user-&gt;id, \/\/ \u8457\u8005\u306f\u81ea\u5206\u306e\u8a18\u4e8b\u306e\u307f\u66f4\u65b0\u53ef\u80fd\n        default =&gt; false, \/\/ \u305d\u306e\u4ed6\u306e\u30ed\u30fc\u30eb\u306f\u66f4\u65b0\u4e0d\u53ef\n    };\n}\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-92\">\u30eb\u30fc\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u5909\u63db<\/h4>\n\n\n\n<p>\u30eb\u30fc\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u6b63\u898f\u5316\u3084\u5909\u63db\u306b\u3082match\u5f0f\u304c\u4fbf\u5229\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ RouteServiceProvider\u306eboot()\u30e1\u30bd\u30c3\u30c9\u5185\nRoute::bind('status', function ($value) {\n    return match ($value) {\n        'pending', 'waiting' =&gt; 'pending',  \/\/ \u985e\u7fa9\u8a9e\u3092\u7d71\u4e00\n        'approved', 'completed' =&gt; 'approved',\n        'rejected', 'canceled' =&gt; 'rejected',\n        default =&gt; throw new NotFoundHttpException(\"Invalid status: {$value}\"),\n    };\n});\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306b\u3088\u308a\u3001\u3055\u307e\u3056\u307e\u306a\u8868\u73fe\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u6a19\u6e96\u5316\u3067\u304d\u3001URL\u306e\u67d4\u8edf\u6027\u3092\u9ad8\u3081\u3064\u3064\u5185\u90e8\u51e6\u7406\u306f\u4e00\u8cab\u3057\u3066\u884c\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-93\">Symfony\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067match\u3092\u5c0e\u5165\u3059\u308b\u30dd\u30a4\u30f3\u30c8<\/h3>\n\n\n\n<p>Symfony 5.3\u4ee5\u964d\u306fPHP 8.0\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3001Symfony 6.0\u304b\u3089\u306fPHP 8.0\u304c\u6700\u5c0f\u8981\u4ef6\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002Symfony\u3067\u3082match\u5f0f\u3092\u69d8\u3005\u306a\u5834\u9762\u3067\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-94\">Form\u30bf\u30a4\u30d7\u3067\u306e\u6761\u4ef6\u51e6\u7406<\/h4>\n\n\n\n<p>\u30d5\u30a9\u30fc\u30e0\u30bf\u30a4\u30d7\u306e\u52d5\u7684\u306a\u8a2d\u5b9a\u306bmatch\u5f0f\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30ab\u30b9\u30bf\u30e0\u30d5\u30a9\u30fc\u30e0\u30bf\u30a4\u30d7\u5185\npublic function buildForm(FormBuilderInterface $builder, array $options): void\n{\n    \/\/ \u30e6\u30fc\u30b6\u30fc\u30ed\u30fc\u30eb\u306b\u57fa\u3065\u3044\u305f\u7de8\u96c6\u53ef\u80fd\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u8a2d\u5b9a\n    $editable = match ($options['user_role']) {\n        'ROLE_ADMIN' =&gt; ['title', 'content', 'author', 'publishedAt', 'status'],\n        'ROLE_EDITOR' =&gt; ['title', 'content', 'status'],\n        'ROLE_AUTHOR' =&gt; ['title', 'content'],\n        default =&gt; [],\n    };\n    \n    foreach (['title', 'content', 'author', 'publishedAt', 'status'] as $field) {\n        $builder-&gt;add($field, match ($field) {\n            'title' =&gt; TextType::class,\n            'content' =&gt; TextareaType::class,\n            'author' =&gt; EntityType::class,\n            'publishedAt' =&gt; DateTimeType::class,\n            'status' =&gt; ChoiceType::class,\n            default =&gt; HiddenType::class,\n        }, [\n            'disabled' =&gt; !in_array($field, $editable),\n        ]);\n    }\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u30ed\u30fc\u30eb\u306b\u57fa\u3065\u3044\u3066\u7de8\u96c6\u53ef\u80fd\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u6c7a\u5b9a\u3057\u3001\u3055\u3089\u306b\u5404\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u9069\u3057\u305f\u30d5\u30a9\u30fc\u30e0\u30bf\u30a4\u30d7\u3092\u9078\u629e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-95\">Doctrine\u30ea\u30dd\u30b8\u30c8\u30ea\u306e\u6761\u4ef6\u5206\u5c90<\/h4>\n\n\n\n<p>Doctrine\u306e\u30ea\u30dd\u30b8\u30c8\u30ea\u30af\u30e9\u30b9\u3067\u30af\u30a8\u30ea\u6761\u4ef6\u3092\u52d5\u7684\u306b\u5909\u66f4\u3059\u308b\u5834\u5408\u306b\u3082\u5f79\u7acb\u3061\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ ArticleRepository\u30af\u30e9\u30b9\u5185\npublic function findByStatusForUser(string $status, User $user): array\n{\n    $qb = $this-&gt;createQueryBuilder('a')\n        -&gt;where('a.status = :status')\n        -&gt;setParameter('status', $status);\n    \n    \/\/ \u30e6\u30fc\u30b6\u30fc\u30ed\u30fc\u30eb\u306b\u57fa\u3065\u3044\u305f\u30af\u30a8\u30ea\u306e\u8ffd\u52a0\u6761\u4ef6\n    match ($user-&gt;getRole()) {\n        'ROLE_ADMIN' =&gt; null, \/\/ \u5236\u9650\u306a\u3057\n        'ROLE_EDITOR' =&gt; $qb-&gt;andWhere('a.department = :department')\n            -&gt;setParameter('department', $user-&gt;getDepartment()),\n        'ROLE_AUTHOR' =&gt; $qb-&gt;andWhere('a.author = :author')\n            -&gt;setParameter('author', $user),\n        default =&gt; $qb-&gt;andWhere('a.public = true'), \/\/ \u4e00\u822c\u30e6\u30fc\u30b6\u30fc\u306f\u516c\u958b\u8a18\u4e8b\u306e\u307f\n    };\n    \n    return $qb-&gt;getQuery()-&gt;getResult();\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001match\u5f0f\u306e\u623b\u308a\u5024\u3092\u4f7f\u7528\u305b\u305a\u3001\u526f\u4f5c\u7528\uff08QueryBuilder\u306e\u6761\u4ef6\u8ffd\u52a0\uff09\u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u30ed\u30fc\u30eb\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u30af\u30a8\u30ea\u6761\u4ef6\u3092\u9069\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-96\">Service\u30b3\u30f3\u30c6\u30ca\u3067\u306e\u6d3b\u7528<\/h4>\n\n\n\n<p>\u74b0\u5883\u306b\u5fdc\u3058\u3066\u7570\u306a\u308b\u30b5\u30fc\u30d3\u30b9\u5b9f\u88c5\u3092\u9078\u629e\u3059\u308b\u5834\u5408\u306b\u3082match\u5f0f\u304c\u4fbf\u5229\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ services.php\nuse Symfony\\Component\\DependencyInjection\\Loader\\Configurator\\ContainerConfigurator;\n\nreturn function(ContainerConfigurator $configurator) {\n    $services = $configurator-&gt;services();\n    \n    \/\/ \u74b0\u5883\u306b\u5fdc\u3058\u305f\u30ed\u30ac\u30fc\u30b5\u30fc\u30d3\u30b9\u306e\u8a2d\u5b9a\n    $loggerClass = match ($_SERVER['APP_ENV']) {\n        'prod' =&gt; 'App\\\\Logger\\\\ProductionLogger',\n        'staging' =&gt; 'App\\\\Logger\\\\StagingLogger',\n        'dev' =&gt; 'App\\\\Logger\\\\DevelopmentLogger',\n        default =&gt; 'App\\\\Logger\\\\NullLogger',\n    };\n    \n    $services-&gt;set('app.logger', $loggerClass)\n        -&gt;public();\n};\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u5b9f\u884c\u74b0\u5883\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u30ed\u30ac\u30fc\u30b5\u30fc\u30d3\u30b9\u3092\u9078\u629e\u3057\u307e\u3059\u3002match\u5f0f\u306e\u30b7\u30f3\u30d7\u30eb\u3055\u306b\u3088\u308a\u3001\u8a2d\u5b9a\u30b3\u30fc\u30c9\u304c\u8aad\u307f\u3084\u3059\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-97\">WordPress\u30d7\u30e9\u30b0\u30a4\u30f3\u958b\u767a\u3067\u306ematch\u306e\u6d3b\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>WordPress 5.6\u4ee5\u964d\u306fPHP 8.0\u3068\u4e92\u63db\u6027\u304c\u3042\u308a\u3001WordPress 6.0\u4ee5\u964d\u306fPHP 8.1\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u3084\u30c6\u30fc\u30de\u306e\u4e2d\u306b\u306fPHP 8\u5bfe\u5fdc\u304c\u5b8c\u5168\u3067\u306a\u3044\u3082\u306e\u3082\u3042\u308b\u305f\u3081\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-98\">\u30d5\u30c3\u30af\u3068\u30d5\u30a3\u30eb\u30bf\u30fc\u3067\u306e\u4f7f\u7528<\/h4>\n\n\n\n<p>WordPress\u56fa\u6709\u306e\u30d5\u30c3\u30af\u30b7\u30b9\u30c6\u30e0\u3067match\u5f0f\u3092\u6d3b\u7528\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ post_status\u306b\u57fa\u3065\u304f\u30e9\u30d9\u30eb\u8a2d\u5b9a\nadd_filter('display_post_states', function ($post_states, $post) {\n    if ($post-&gt;post_type !== 'product') {\n        return $post_states;\n    }\n    \n    $post_states[] = match ($post-&gt;post_status) {\n        'publish' =&gt; '&lt;span class=\"status-publish\"&gt;\u516c\u958b\u4e2d&lt;\/span&gt;',\n        'draft' =&gt; '&lt;span class=\"status-draft\"&gt;\u4e0b\u66f8\u304d&lt;\/span&gt;',\n        'pending' =&gt; '&lt;span class=\"status-pending\"&gt;\u30ec\u30d3\u30e5\u30fc\u5f85\u3061&lt;\/span&gt;',\n        'future' =&gt; '&lt;span class=\"status-future\"&gt;\u4e88\u7d04\u6295\u7a3f&lt;\/span&gt;',\n        'private' =&gt; '&lt;span class=\"status-private\"&gt;\u975e\u516c\u958b&lt;\/span&gt;',\n        'trash' =&gt; '&lt;span class=\"status-trash\"&gt;\u30b4\u30df\u7bb1&lt;\/span&gt;',\n        default =&gt; '',\n    };\n    \n    return $post_states;\n}, 10, 2);\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001\u6295\u7a3f\u30b9\u30c6\u30fc\u30bf\u30b9\u306b\u57fa\u3065\u3044\u3066\u9069\u5207\u306a\u8868\u793a\u30e9\u30d9\u30eb\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-99\">\u30b7\u30e7\u30fc\u30c8\u30b3\u30fc\u30c9\u51e6\u7406\u3067\u306e\u6d3b\u7528<\/h4>\n\n\n\n<p>WordPress\u72ec\u81ea\u306e\u30b7\u30e7\u30fc\u30c8\u30b3\u30fc\u30c9\u6a5f\u80fd\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30ab\u30b9\u30bf\u30e0\u30dc\u30bf\u30f3\u30b7\u30e7\u30fc\u30c8\u30b3\u30fc\u30c9\nadd_shortcode('custom_button', function($atts) {\n    $atts = shortcode_atts([\n        'type' =&gt; 'default',\n        'size' =&gt; 'medium',\n        'url' =&gt; '#',\n        'text' =&gt; '\u30dc\u30bf\u30f3',\n    ], $atts);\n    \n    \/\/ \u30bf\u30a4\u30d7\u306b\u5fdc\u3058\u305f\u30af\u30e9\u30b9\u540d\u3092\u751f\u6210\n    $class = match ($atts['type']) {\n        'primary' =&gt; 'btn-primary',\n        'secondary' =&gt; 'btn-secondary',\n        'success' =&gt; 'btn-success',\n        'danger' =&gt; 'btn-danger',\n        'warning' =&gt; 'btn-warning',\n        'info' =&gt; 'btn-info',\n        default =&gt; 'btn-default',\n    };\n    \n    \/\/ \u30b5\u30a4\u30ba\u306b\u5fdc\u3058\u305f\u30af\u30e9\u30b9\u540d\u3092\u8ffd\u52a0\n    $size_class = match ($atts['size']) {\n        'small', 'sm' =&gt; 'btn-sm',\n        'large', 'lg' =&gt; 'btn-lg',\n        default =&gt; '',\n    };\n    \n    return sprintf(\n        '&lt;a href=\"%s\" class=\"btn %s %s\"&gt;%s&lt;\/a&gt;',\n        esc_url($atts['url']),\n        esc_attr($class),\n        esc_attr($size_class),\n        esc_html($atts['text'])\n    );\n});\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30b7\u30e7\u30fc\u30c8\u30b3\u30fc\u30c9\u306f\u3001\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u57fa\u3065\u3044\u3066\u9069\u5207\u306a\u30b9\u30bf\u30a4\u30eb\u306e\u30dc\u30bf\u30f3\u3092\u751f\u6210\u3057\u307e\u3059\u3002match\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u8907\u96d1\u306a\u6761\u4ef6\u5206\u5c90\u3092\u7c21\u6f54\u306b\u8868\u73fe\u3067\u304d\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-100\">\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u3068\u306e\u5171\u5b58\u6226\u7565<\/h4>\n\n\n\n<p>WordPress\u958b\u767a\u3067\u306f\u3001PHP 7\u4ee5\u524d\u3068\u306e\u4e92\u63db\u6027\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5b9f\u884c\u74b0\u5883\u306b\u5fdc\u3058\u305f\u5b9f\u88c5\u3092\u9078\u629e\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ PHP \u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u5fdc\u3058\u305f\u5b9f\u88c5\nif (version_compare(PHP_VERSION, '8.0.0', '&gt;=')) {\n    \/\/ PHP 8.0\u4ee5\u4e0a\u306e\u5834\u5408\u306fmatch\u5f0f\u3092\u4f7f\u7528\n    function get_post_status_label($status) {\n        return match ($status) {\n            'publish' =&gt; '\u516c\u958b',\n            'draft' =&gt; '\u4e0b\u66f8\u304d',\n            'pending' =&gt; '\u30ec\u30d3\u30e5\u30fc\u5f85\u3061',\n            'private' =&gt; '\u975e\u516c\u958b',\n            'future' =&gt; '\u4e88\u7d04\u6295\u7a3f',\n            'trash' =&gt; '\u30b4\u30df\u7bb1',\n            default =&gt; $status,\n        };\n    }\n} else {\n    \/\/ PHP 7\u4ee5\u524d\u3067\u306fswitch\u6587\u3092\u4f7f\u7528\n    function get_post_status_label($status) {\n        switch ($status) {\n            case 'publish':\n                return '\u516c\u958b';\n            case 'draft':\n                return '\u4e0b\u66f8\u304d';\n            case 'pending':\n                return '\u30ec\u30d3\u30e5\u30fc\u5f85\u3061';\n            case 'private':\n                return '\u975e\u516c\u958b';\n            case 'future':\n                return '\u4e88\u7d04\u6295\u7a3f';\n            case 'trash':\n                return '\u30b4\u30df\u7bb1';\n            default:\n                return $status;\n        }\n    }\n}\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-101\">\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u4e92\u63db\u6027\u7dad\u6301<\/h4>\n\n\n\n<p>WordPress\u74b0\u5883\u3067\u306f\u3055\u307e\u3056\u307e\u306aPHP\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u6df7\u5728\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u4e92\u63db\u6027\u306e\u3042\u308b\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30dd\u30ea\u30d5\u30a3\u30eb\u3092\u4f7f\u3063\u305f\u65b9\u6cd5\u3082\u8003\u3048\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/**\n * \u30dd\u30ea\u30d5\u30a3\u30eb\u95a2\u6570: match\u5f0f\u306e\u52d5\u4f5c\u3092\u6a21\u5023\u3059\u308b\u95a2\u6570\n * \n * @param mixed $value \u30de\u30c3\u30c1\u3059\u308b\u5024\n * @param array $patterns \u30d1\u30bf\u30fc\u30f3\u3068\u7d50\u679c\u306e\u30de\u30c3\u30d4\u30f3\u30b0\u914d\u5217\n * @return mixed \u30de\u30c3\u30c1\u3057\u305f\u7d50\u679c\n * @throws RuntimeException \u30de\u30c3\u30c1\u3059\u308b\u6761\u4ef6\u304c\u306a\u3044\u5834\u5408\n *\/\nif (!function_exists('wp_match')) {\n    function wp_match($value, array $patterns) {\n        \/\/ PHP 8.0\u4ee5\u4e0a\u3067\u306f\u672c\u7269\u306ematch\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u306e\u304c\u671b\u307e\u3057\u3044\n        if (version_compare(PHP_VERSION, '8.0.0', '&gt;=')) {\n            \/\/ \u6ce8\u610f: \u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u76f4\u63a5match\u5f0f\u3092\u4f7f\u3046\u3079\u304d\n            \/\/ \u3053\u308c\u306f\u3042\u304f\u307e\u3067\u4f8b\u793a\u76ee\u7684\n            return $patterns[$value] ?? $patterns['default'] ?? null;\n        }\n        \n        \/\/ PHP 7\u4ee5\u524d\u3067\u306f\u624b\u52d5\u3067match\u52d5\u4f5c\u3092\u6a21\u5023\n        foreach ($patterns as $key =&gt; $result) {\n            if ($key === 'default') {\n                continue;\n            }\n            \n            \/\/ \u8907\u6570\u6761\u4ef6\u306e\u30b1\u30fc\u30b9\uff08\u914d\u5217\uff09\n            if (is_array($key)) {\n                foreach ($key as $subkey) {\n                    if ($value === $subkey) {\n                        return is_callable($result) ? $result() : $result;\n                    }\n                }\n            } \n            \/\/ \u5358\u4e00\u6761\u4ef6\n            elseif ($value === $key) {\n                return is_callable($result) ? $result() : $result;\n            }\n        }\n        \n        \/\/ default\u53e5\u304c\u3042\u308c\u3070\u4f7f\u7528\n        if (isset($patterns['default'])) {\n            $default = $patterns['default'];\n            return is_callable($default) ? $default() : $default;\n        }\n        \n        \/\/ \u30de\u30c3\u30c1\u3059\u308b\u3082\u306e\u304c\u306a\u304f\u3001default\u3082\u306a\u3044\u5834\u5408\u306f\u30a8\u30e9\u30fc\n        throw new RuntimeException('Unhandled match value');\n    }\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n$label = wp_match($post-&gt;post_status, [\n    'publish' =&gt; '\u516c\u958b',\n    'draft' =&gt; '\u4e0b\u66f8\u304d',\n    ['pending', 'review'] =&gt; '\u30ec\u30d3\u30e5\u30fc\u5f85\u3061', \/\/ \u8907\u6570\u6761\u4ef6\n    'default' =&gt; '\u4e0d\u660e',\n]);\n<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u30dd\u30ea\u30d5\u30a3\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001PHP 7\u74b0\u5883\u3067\u3082match\u5f0f\u306b\u4f3c\u305f\u6a5f\u80fd\u3092\u63d0\u4f9b\u3067\u304d\u307e\u3059\u304c\u3001\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306fPHP 8\u3078\u306e\u79fb\u884c\u3092\u4fc3\u9032\u3057\u3001\u672c\u6765\u306ematch\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u671b\u307e\u3057\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<p>\u3053\u308c\u3089\u306e\u4f8b\u3067\u793a\u3057\u305f\u3088\u3046\u306b\u3001match\u5f0f\u306f\u3055\u307e\u3056\u307e\u306aPHP\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u7c21\u6f54\u3067\u8aad\u307f\u3084\u3059\u3044\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u5404\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u7279\u6027\u306b\u5408\u308f\u305b\u3066match\u5f0f\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3068\u958b\u767a\u52b9\u7387\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-102\">PHP 8.1\u4ee5\u964d\u306e\u62e1\u5f35\u6a5f\u80fd\u3068match\u306e\u5c06\u6765\u5c55\u671b<\/h2>\n\n\n\n<p>PHP 8.0\u3067match\u5f0f\u304c\u5c0e\u5165\u3055\u308c\u3066\u4ee5\u964d\u3001PHP\u8a00\u8a9e\u81ea\u4f53\u306f\u9032\u5316\u3092\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001PHP 8.1\u3067\u306e\u6539\u5584\u70b9\u3001\u5c06\u6765\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u4e88\u5b9a\u3055\u308c\u3066\u3044\u308b\u62e1\u5f35\u6a5f\u80fd\u3001\u305d\u3057\u3066\u4ed6\u306e\u8a00\u8a9e\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u6a5f\u80fd\u3068\u306e\u6bd4\u8f03\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-103\">PHP 8.1\u3067\u8ffd\u52a0\u3055\u308c\u305fmatch\u95a2\u9023\u306e\u6539\u5584\u70b9<\/h3>\n\n\n\n<p>PHP 8.1\u3067\u306f\u3001match\u5f0f\u81ea\u4f53\u306b\u76f4\u63a5\u7684\u306a\u5909\u66f4\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u95a2\u9023\u3059\u308b\u6a5f\u80fd\u306e\u6539\u5584\u3084\u65b0\u6a5f\u80fd\u306e\u8ffd\u52a0\u306b\u3088\u308a\u3001match\u5f0f\u3092\u3088\u308a\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-104\">\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u6539\u5584<\/h4>\n\n\n\n<p>PHP 8.1\u3067\u306f\u3001UnhandledMatchError\u306e\u4f8b\u5916\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u3088\u308a\u8a73\u7d30\u306b\u306a\u308a\u3001\u30c7\u30d0\u30c3\u30b0\u304c\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3057\u305f\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ PHP 8.0\u3067\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\n\/\/ Fatal error: Uncaught UnhandledMatchError\n\n\/\/ PHP 8.1\u3067\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\n\/\/ Fatal error: Uncaught UnhandledMatchError: Unhandled match value of type string (\"unknown\")\n<\/pre>\n\n\n\n<p>\u3088\u308a\u5177\u4f53\u7684\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u3088\u308a\u3001\u30de\u30c3\u30c1\u3057\u306a\u304b\u3063\u305f\u5024\u306e\u578b\u3068\u5185\u5bb9\u304c\u308f\u304b\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u554f\u984c\u306e\u7279\u5b9a\u3068\u4fee\u6b63\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-105\">\u5217\u6319\u578b(Enum)\u3068\u306e\u9023\u643a<\/h4>\n\n\n\n<p>PHP 8.1\u3067\u5c0e\u5165\u3055\u308c\u305f\u5217\u6319\u578b(Enum)\u306f\u3001match\u5f0f\u3068\u306e\u76f8\u6027\u304c\u975e\u5e38\u306b\u826f\u304f\u3001\u578b\u5b89\u5168\u306a\u6761\u4ef6\u5206\u5c90\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5217\u6319\u578b\u306e\u5b9a\u7fa9\nenum Status\n{\n    case PENDING;\n    case ACTIVE;\n    case SUSPENDED;\n    case CLOSED;\n}\n\nfunction getStatusMessage(Status $status): string {\n    return match ($status) {\n        Status::PENDING =&gt; 'Your account is pending approval',\n        Status::ACTIVE =&gt; 'Your account is active',\n        Status::SUSPENDED =&gt; 'Your account has been suspended',\n        Status::CLOSED =&gt; 'Your account has been closed',\n        \/\/ \u5217\u6319\u578b\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067default\u53e5\u304c\u4e0d\u8981\u306b\u306a\u308b\u53ef\u80fd\u6027\u3082\n    };\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n$message = getStatusMessage(Status::ACTIVE);\n<\/pre>\n\n\n\n<p>\u5217\u6319\u578b\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u6587\u5b57\u5217\u3084\u6574\u6570\u306e\u4ee3\u308f\u308a\u306b\u578b\u5b89\u5168\u306a\u5024\u3092\u4f7f\u7528\u3067\u304d\u3001IDE\u306e\u88dc\u5b8c\u30b5\u30dd\u30fc\u30c8\u3082\u53d7\u3051\u3089\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u3059\u3079\u3066\u306e\u30b1\u30fc\u30b9\u3092\u7db2\u7f85\u3057\u3066\u3044\u308c\u3070\u3001default\u53e5\u304c\u4e0d\u8981\u306b\u306a\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-106\">\u7d14\u7c8b\u306a\u4ea4\u5dee\u578b\u3068\u5408\u4f75\u578b<\/h4>\n\n\n\n<p>PHP 8.1\u3067\u5c0e\u5165\u3055\u308c\u305f\u7d14\u7c8b\u306a\u4ea4\u5dee\u578b(intersection types)\u3068\u5408\u4f75\u578b(union types)\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001match\u5f0f\u3067\u3088\u308a\u8907\u96d1\u306a\u578b\u306b\u57fa\u3065\u3044\u305f\u5206\u5c90\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function processValue(int|float $value): string|null {\n    return match (true) {\n        $value &gt; 100 =&gt; 'Large number',\n        $value &gt; 0 =&gt; 'Positive number',\n        $value === 0 =&gt; 'Zero',\n        $value &lt; 0 =&gt; 'Negative number',\n        default =&gt; null,\n    };\n}\n\n\/\/ \u4f7f\u7528\u4f8b\necho processValue(42.5);  \/\/ \"Positive number\"\n$result = processValue(0); \/\/ \"Zero\"\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-107\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6539\u5584<\/h4>\n\n\n\n<p>PHP 8.1\u3067\u306fJIT(Just-In-Time)\u30b3\u30f3\u30d1\u30a4\u30e9\u3068Opcache\u306e\u6700\u9069\u5316\u304c\u9032\u307f\u3001match\u5f0f\u306e\u5b9f\u884c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u307e\u3057\u305f\u3002\u7279\u306b\u7e70\u308a\u8fd4\u3057\u5b9f\u884c\u3055\u308c\u308b\u7b87\u6240\u3084\u3001\u5927\u91cf\u306e\u30d1\u30bf\u30fc\u30f3\u6bd4\u8f03\u3092\u542b\u3080\u30b1\u30fc\u30b9\u3067\u52b9\u679c\u304c\u9855\u8457\u3067\u3059\u3002\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u306b\u3088\u308b\u3068\u3001\u540c\u7b49\u306eswitch\u6587\u3068\u6bd4\u8f03\u3057\u3066\u3001match\u5f0f\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u512a\u4f4d\u6027\u304c\u7d045-10%\u5411\u4e0a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-108\">\u4eca\u5f8c\u306ePHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306e\u4e88\u5b9a\u3055\u308c\u3066\u3044\u308b\u62e1\u5f35\u6a5f\u80fd<\/h3>\n\n\n\n<p>PHP\u8a00\u8a9e\u306f\u7d99\u7d9a\u7684\u306b\u9032\u5316\u3057\u3066\u304a\u308a\u3001match\u5f0f\u3068\u305d\u306e\u95a2\u9023\u6a5f\u80fd\u306b\u3064\u3044\u3066\u3082\u5c06\u6765\u7684\u306b\u62e1\u5f35\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-109\">PHP 8.2\u3067\u306e\u6539\u5584<\/h4>\n\n\n\n<p>PHP 8.2\u3067\u5c0e\u5165\u3055\u308c\u305f\u8aad\u307f\u53d6\u308a\u5c02\u7528\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u3001match\u5f0f\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Configuration {\n    public readonly string $environment;\n    \n    public function __construct(string $env) {\n        $this-&gt;environment = match ($env) {\n            'production', 'prod' =&gt; 'production',\n            'staging', 'stage' =&gt; 'staging',\n            'development', 'dev', 'local' =&gt; 'development',\n            default =&gt; throw new InvalidArgumentException(\"Unknown environment: {$env}\"),\n        };\n    }\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u74b0\u5883\u5024\u306e\u6b63\u898f\u5316\u3092\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u884c\u3044\u3001readonly\u4fee\u98fe\u5b50\u306b\u3088\u3063\u3066\u5909\u66f4\u4e0d\u53ef\u80fd\u306a\u72b6\u614b\u3092\u4fdd\u8a3c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-110\">PHP 8.3\u4ee5\u964d\u3067\u306e\u6f5c\u5728\u7684\u306a\u62e1\u5f35<\/h4>\n\n\n\n<p>\u73fe\u5728\u8b70\u8ad6\u3055\u308c\u3066\u3044\u308b\u6a5f\u80fd\u3084\u3001\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u304b\u3089\u306e\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u306b\u57fa\u3065\u3044\u3066\u3001\u5c06\u6765\u306ePHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u62e1\u5f35\u304c\u671f\u5f85\u3055\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u69cb\u9020\u7684\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0<\/strong>\uff1a\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u69cb\u9020\u306b\u57fa\u3065\u304f\u30de\u30c3\u30c1\u30f3\u30b0\u304c\u53ef\u80fd\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u4eee\u60f3\u7684\u306a\u5c06\u6765\u306e\u30b3\u30fc\u30c9\u4f8b\uff08\u73fe\u5728\u306ePHP\u3067\u306f\u52d5\u4f5c\u3057\u307e\u305b\u3093\uff09\n$result = match ($data) {\n    ['type' =&gt; 'user', 'id' =&gt; $id] =&gt; processUser($id),\n    ['type' =&gt; 'product', 'id' =&gt; $id] when $id &gt; 1000 =&gt; processLegacyProduct($id),\n    ['type' =&gt; 'product', 'id' =&gt; $id] =&gt; processProduct($id),\n    default =&gt; processUnknown($data),\n};\n<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30ac\u30fc\u30c9\u6761\u4ef6<\/strong>\uff1a\u30de\u30c3\u30c1\u30f3\u30b0\u306b\u8ffd\u52a0\u306e\u5236\u7d04\u6761\u4ef6\u3092\u4ed8\u3051\u308b\u6a5f\u80fd\u304c\u5c0e\u5165\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u5024\u306e\u62bd\u51fa<\/strong>\uff1a\u30de\u30c3\u30c1\u30f3\u30b0\u6642\u306b\u5909\u6570\u306b\u5024\u3092\u62bd\u51fa\u3059\u308b\u6a5f\u80fd\u304c\u8ffd\u52a0\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u69cb\u6587\u306e\u7c21\u7565\u5316<\/strong>\uff1amatch\u5f0f\u306e\u69cb\u6587\u304c\u3055\u3089\u306b\u7c21\u6f54\u306b\u306a\u308b\u53ef\u80fd\u6027\u3082\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u73fe\u5728\u306e\u69cb\u6587\n$result = match ($value) {\n    1 =&gt; 'one',\n    2 =&gt; 'two',\n    default =&gt; 'other',\n};\n\n\/\/ \u5c06\u6765\u7684\u306a\u7c21\u7565\u5316\u306e\u53ef\u80fd\u6027\uff08\u4eee\u60f3\u4f8b\uff09\n$result = match $value {\n    1 =&gt; 'one',\n    2 =&gt; 'two',\n    _ =&gt; 'other', \/\/ default\u306e\u4ee3\u308f\u308a\u306b_\u3092\u4f7f\u7528\n};\n<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6a5f\u80fd\u306f\u3042\u304f\u307e\u3067\u53ef\u80fd\u6027\u3067\u3042\u308a\u3001PHP\u958b\u767a\u30c1\u30fc\u30e0\u306e\u6c7a\u5b9a\u3084\u5b9f\u88c5\u306e\u96e3\u6613\u5ea6\u306b\u3088\u3063\u3066\u5909\u308f\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-111\">\u4ed6\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3068\u306e\u6bd4\u8f03<\/h3>\n\n\n\n<p>\u4ed6\u306e\u8a00\u8a9e\u3067\u306f\u3059\u3067\u306b\u9ad8\u5ea6\u306a\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u3082\u306e\u3082\u3042\u308a\u307e\u3059\u3002PHP\u306ematch\u5f0f\u3068\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-112\">Rust\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0<\/h4>\n\n\n\n<p>Rust\u306f\u975e\u5e38\u306b\u5f37\u529b\u306a\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u3001\u69cb\u9020\u4f53\u3001\u5217\u6319\u578b\u3001\u30bf\u30d7\u30eb\u306a\u3069\u69d8\u3005\u306a\u30c7\u30fc\u30bf\u578b\u306b\u5bfe\u3057\u3066\u30de\u30c3\u30c1\u30f3\u30b0\u304c\u53ef\u80fd\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Rust\u306ematch\u306e\u4f8b\nmatch value {\n    0 =&gt; println!(\"zero\"),\n    1 =&gt; println!(\"one\"),\n    2..=10 =&gt; println!(\"between 2 and 10\"),\n    x if x &gt; 10 &amp;&amp; x &lt; 20 =&gt; println!(\"between 11 and 19\"),\n    _ =&gt; println!(\"something else\"),\n}\n\n\/\/ \u69cb\u9020\u4f53\u306e\u5206\u89e3\nmatch point {\n    Point { x: 0, y: 0 } =&gt; println!(\"At origin\"),\n    Point { x, y } if x &gt; 0 &amp;&amp; y &gt; 0 =&gt; println!(\"In first quadrant\"),\n    Point { x, y } =&gt; println!(\"At x={}, y={}\", x, y),\n}\n<\/pre>\n\n\n\n<p>Rust\u306e\u7279\u5fb4\u3068\u3057\u3066\u3001\u7bc4\u56f2\u30de\u30c3\u30c1\u30f3\u30b0\u3001\u69cb\u9020\u4f53\u306e\u5206\u89e3\u3001\u30ac\u30fc\u30c9\u6761\u4ef6\u3001\u5024\u306e\u30ad\u30e3\u30d7\u30c1\u30e3\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-113\">Kotlin\u306e<code>when<\/code>\u5f0f<\/h4>\n\n\n\n<p>Kotlin\u306ewhen\u306fPHP\u306ematch\u5f0f\u306b\u4f3c\u3066\u3044\u307e\u3059\u304c\u3001\u3088\u308a\u591a\u6a5f\u80fd\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Kotlin\u306ewhen\u306e\u4f8b\nwhen (x) {\n    1 -&gt; print(\"x == 1\")\n    2 -&gt; print(\"x == 2\")\n    in 3..10 -&gt; print(\"x is between 3 and 10\")\n    is String -&gt; print(\"x is String of length ${x.length}\")\n    else -&gt; print(\"none of the above\")\n}\n\n\/\/ \u5f15\u6570\u306a\u3057\u306ewhen (match (true)\u306b\u4f3c\u3066\u3044\u308b)\nwhen {\n    x.isOdd() -&gt; print(\"x is odd\")\n    x.isEven() -&gt; print(\"x is even\")\n    else -&gt; print(\"x is funny\")\n}\n<\/pre>\n\n\n\n<p>Kotlin\u3067\u306f\u578b\u30c1\u30a7\u30c3\u30af\u3001\u7bc4\u56f2\u30c1\u30a7\u30c3\u30af\u3001\u6761\u4ef6\u5f0f\u306a\u3069\u3001\u3088\u308a\u591a\u69d8\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-114\">Scala\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0<\/h4>\n\n\n\n<p>Scala\u306f\u975e\u5e38\u306b\u5f37\u529b\u306a\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u6a5f\u80fd\u3092\u6301\u3061\u3001\u30b1\u30fc\u30b9\u30af\u30e9\u30b9\u3084\u62bd\u51fa\u5b50\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u8907\u96d1\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u51e6\u7406\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Scala\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\ndef describe(x: Any): String = x match {\n  case 0 =&gt; \"zero\"\n  case i: Int if i &gt; 0 =&gt; \"positive number\"\n  case i: Int =&gt; \"negative number\"\n  case s: String =&gt; s\"a string of length ${s.length}\"\n  case list: List[_] =&gt; s\"a list of size ${list.size}\"\n  case Person(name, age) =&gt; s\"$name is $age years old\"\n  case _ =&gt; \"something else\"\n}\n<\/pre>\n\n\n\n<p>Scala\u3067\u306f\u3001\u578b\u30d1\u30bf\u30fc\u30f3\u3001\u30ac\u30fc\u30c9\u6761\u4ef6\u3001\u30b1\u30fc\u30b9\u30af\u30e9\u30b9\u306e\u5206\u89e3\u3001\u62bd\u51fa\u5b50\u30d1\u30bf\u30fc\u30f3\u306a\u3069\u975e\u5e38\u306b\u8868\u73fe\u529b\u8c4a\u304b\u306a\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-115\">PHP\u306e\u73fe\u72b6\u3068\u5c06\u6765\u306e\u53ef\u80fd\u6027<\/h4>\n\n\n\n<p>\u73fe\u5728\u306ePHP\u306ematch\u5f0f\u306f\u57fa\u672c\u7684\u306a\u5024\u306e\u30de\u30c3\u30c1\u30f3\u30b0\u3001\u8907\u6570\u6761\u4ef6\u306e\u30b0\u30eb\u30fc\u30d7\u5316\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u30b1\u30fc\u30b9\u306e\u30b5\u30dd\u30fc\u30c8\u306a\u3069\u3001\u57fa\u672c\u7684\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u4ed6\u306e\u8a00\u8a9e\u3068\u6bd4\u8f03\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u5236\u9650\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u69cb\u9020\u7684\u5206\u89e3\u306e\u6b20\u5982<\/strong>\uff1a\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u69cb\u9020\u306b\u57fa\u3065\u3044\u305f\u30de\u30c3\u30c1\u30f3\u30b0\u304c\u3067\u304d\u306a\u3044<\/li>\n\n\n\n<li><strong>\u30ac\u30fc\u30c9\u6761\u4ef6\u306e\u30b5\u30dd\u30fc\u30c8\u4e0d\u8db3<\/strong>\uff1a\u8907\u96d1\u306a\u6761\u4ef6\u5f0f\u3092\u76f4\u63a5\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044<\/li>\n\n\n\n<li><strong>\u5024\u306e\u62bd\u51fa\u6a5f\u80fd\u306e\u6b20\u5982<\/strong>\uff1a\u30d1\u30bf\u30fc\u30f3\u304b\u3089\u306e\u5024\u306e\u62bd\u51fa\u304c\u3067\u304d\u306a\u3044<\/li>\n<\/ol>\n\n\n\n<p>\u5c06\u6765\u7684\u306b\u306f\u3001\u3053\u308c\u3089\u306e\u5236\u9650\u304c\u89e3\u6d88\u3055\u308c\u3001PHP\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u6a5f\u80fd\u304c\u3055\u3089\u306b\u5f37\u5316\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u69cb\u9020\u7684\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u6709\u7528\u306a\u6a5f\u80fd\u3068\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<p>PHP 8.0\u3067\u306ematch\u5f0f\u306e\u5c0e\u5165\u306f\u3001PHP\u306e\u8868\u73fe\u529b\u3092\u5927\u304d\u304f\u5411\u4e0a\u3055\u305b\u307e\u3057\u305f\u3002PHP 8.1\u4ee5\u964d\u306e\u6539\u5584\u306b\u3088\u308a\u3001\u305d\u306e\u4f7f\u3044\u52dd\u624b\u306f\u3055\u3089\u306b\u5411\u4e0a\u3057\u3066\u3044\u307e\u3059\u3002\u5c06\u6765\u7684\u306b\u306f\u3001\u4ed6\u306e\u8a00\u8a9e\u304b\u3089\u30a4\u30f3\u30b9\u30d4\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u5f97\u305f\u62e1\u5f35\u6a5f\u80fd\u304c\u8ffd\u52a0\u3055\u308c\u3001\u3055\u3089\u306b\u5f37\u529b\u306a\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u6a5f\u80fd\u304c\u5b9f\u73fe\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002PHP\u958b\u767a\u8005\u3068\u3057\u3066\u3001\u3053\u308c\u3089\u306e\u9032\u5316\u3092\u697d\u3057\u307f\u306b\u5f85\u3061\u3064\u3064\u3001\u73fe\u5728\u306ematch\u5f0f\u306e\u6a5f\u80fd\u3092\u6700\u5927\u9650\u306b\u6d3b\u7528\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,63],"tags":[],"class_list":{"0":"post-3681","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-php","7":"category-php-syntax","8":"nothumb"},"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/3681","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3681"}],"version-history":[{"count":1,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/3681\/revisions"}],"predecessor-version":[{"id":3682,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/3681\/revisions\/3682"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}