{"id":3450,"date":"2025-03-24T08:46:09","date_gmt":"2025-03-23T23:46:09","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=3450"},"modified":"2025-03-24T08:46:39","modified_gmt":"2025-03-23T23:46:39","slug":"php%e3%81%aeswitch%e6%96%87%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89-%e5%88%9d%e5%bf%83%e8%80%85%e3%81%a7%e3%82%82%e4%bd%bf%e3%81%84%e3%81%93%e3%81%aa%e3%81%9b%e3%82%8b5%e3%81%a4%e3%81%ae","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=3450","title":{"rendered":"PHP\u306eswitch\u6587\u5b8c\u5168\u30ac\u30a4\u30c9: \u521d\u5fc3\u8005\u3067\u3082\u4f7f\u3044\u3053\u306a\u305b\u308b5\u3064\u306e\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af"},"content":{"rendered":"\n<p>Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306b\u304a\u3044\u3066\u3001\u6761\u4ef6\u5206\u5c90\u51e6\u7406\u306f\u6b20\u304b\u305b\u306a\u3044\u8981\u7d20\u3067\u3059\u3002PHP\u3067\u306f\u8907\u6570\u306e\u6761\u4ef6\u5206\u5c90\u3092\u6271\u3046\u969b\u306b\u3001if-else\u6587\u3068\u4e26\u3093\u3067<strong>switch\u6587<\/strong>\u304c\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>switch\u6587\u306f\u8907\u6570\u306e\u6761\u4ef6\u306b\u57fa\u3065\u3044\u3066\u30b3\u30fc\u30c9\u306e\u5b9f\u884c\u30d5\u30ed\u30fc\u3092\u5236\u5fa1\u3059\u308b\u305f\u3081\u306e\u69cb\u6587\u3067\u3001\u7279\u306b\u540c\u3058\u5909\u6570\u306b\u5bfe\u3057\u3066\u591a\u304f\u306e\u6761\u4ef6\u5206\u5c90\u304c\u3042\u308b\u5834\u5408\u306b\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u591a\u304f\u306e\u521d\u5fc3\u8005\u958b\u767a\u8005\u306fif-else\u6587\u306b\u983c\u308a\u304c\u3061\u3067\u3059\u304c\u3001\u9069\u5207\u306a\u5834\u9762\u3067switch\u6587\u3092\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u3067\u3001\u3088\u308a\u52b9\u7387\u7684\u3067\u8aad\u307f\u3084\u3059\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001PHP\u306eswitch\u6587\u306e\u57fa\u672c\u304b\u3089\u5fdc\u7528\u30c6\u30af\u30cb\u30c3\u30af\u3001\u3088\u304f\u3042\u308b\u30d0\u30b0\u306e\u5bfe\u51e6\u6cd5\u3001\u3055\u3089\u306b\u306fPHP 8.0\u4ee5\u964d\u306b\u5c0e\u5165\u3055\u308c\u305f\u65b0\u6a5f\u80fd\u307e\u3067\u3001\u5b9f\u7528\u7684\u306a\u4f8b\u3092\u4ea4\u3048\u306a\u304c\u3089\u5305\u62ec\u7684\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u77e5\u8b58\u3092\u8eab\u306b\u3064\u3051\u308b\u3053\u3068\u3067\u3001\u6761\u4ef6\u5206\u5c90\u51e6\u7406\u306e\u30b9\u30ad\u30eb\u304c\u5411\u4e0a\u3057\u3001\u3088\u308a\u6d17\u7df4\u3055\u308c\u305fPHP\u30b3\u30fc\u30c9\u3092\u66f8\u3051\u308b\u3088\u3046\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\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\u306eswitch\u6587\u306e\u57fa\u672c\uff1a\u521d\u5fc3\u8005\u3067\u3082\u308f\u304b\u308b\u6587\u6cd5\u89e3\u8aac<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">switch\u6587\u306e\u57fa\u672c\u69cb\u6587\u3068\u305d\u306e\u8aad\u307f\u65b9<\/a>      <\/li>      <li>        <a href=\"#i-2\">switch\u6587\u3067\u4f7f\u7528\u3059\u308bbreak\u6587\u306e\u91cd\u8981\u6027<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-5\">default\u53e5\u306e\u5f79\u5272\u3068\u9069\u5207\u306a\u4f7f\u7528\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-9\">if-else\u6587\u3068\u306e\u6bd4\u8f03\uff1a\u3069\u3061\u3089\u3092\u9078\u3076\u3079\u304d\u304b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-10\">\u57fa\u672c\u7684\u306a\u9055\u3044<\/a>      <\/li>      <li>        <a href=\"#i-11\">\u53ef\u8aad\u6027\u306e\u89b3\u70b9\u304b\u3089\u307f\u305fswitch\u6587\u306e\u5229\u70b9<\/a>      <\/li>      <li>        <a href=\"#i-14\">\u51e6\u7406\u901f\u5ea6\u306e\u6bd4\u8f03\uff1a\u591a\u5206\u5c90\u6761\u4ef6\u3067\u306fswitch\u6587\u304c\u6709\u5229<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-17\">\u30b3\u30fc\u30c9\u306e\u4fdd\u5b88\u6027\u3068\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u3078\u306e\u5f71\u97ff<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-21\">PHP switch\u6587\u3092\u4f7f\u3044\u3053\u306a\u30595\u3064\u306e\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-22\">\u30c6\u30af\u30cb\u30c3\u30af1\uff1a\u8907\u6570\u306e\u6761\u4ef6\u3092\u4e00\u3064\u306ecase\u6587\u3067\u51e6\u7406\u3059\u308b\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-23\">\u30c6\u30af\u30cb\u30c3\u30af2\uff1acase\u6587\u3067\u578b\u306e\u53b3\u5bc6\u6bd4\u8f03\u3092\u884c\u3046\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-24\">\u30c6\u30af\u30cb\u30c3\u30af3\uff1a\u6761\u4ef6\u5f0f\u3067\u306e\u5909\u6570\u3068\u5b9a\u6570\u306e\u52b9\u679c\u7684\u306a\u4f7f\u3044\u5206\u3051<\/a>      <\/li>      <li>        <a href=\"#i-25\">\u30c6\u30af\u30cb\u30c3\u30af4\uff1abreak\u3092\u7701\u7565\u3057\u305f\u300c\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u300d\u306e\u6d3b\u7528\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-26\">\u30c6\u30af\u30cb\u30c3\u30af5\uff1areturn\u6587\u3092\u4f75\u7528\u3057\u305f\u52b9\u7387\u7684\u306aswitch\u69cb\u9020<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-27\">\u3088\u304f\u3042\u308bswitch\u6587\u306e\u30d0\u30b0\u3068\u5bfe\u51e6\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-28\">break\u6587\u306e\u5fd8\u308c\u306b\u3088\u308b\u610f\u56f3\u3057\u306a\u3044\u52d5\u4f5c<\/a>      <\/li>      <li>        <a href=\"#i-29\">\u6587\u5b57\u5217\u3068\u6570\u5024\u306e\u6bd4\u8f03\u3067\u8d77\u3053\u308b\u578b\u5909\u63db\u306e\u554f\u984c<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-30\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u4f4e\u4e0b\u3059\u308bswitch\u6587\u306e\u66f8\u304d\u65b9\u3068\u5bfe\u7b56<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-31\">\u5b9f\u7528\u7684\u306aswitch\u6587\u306e\u5fdc\u7528\u4f8b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-32\">Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u51e6\u7406<\/a>      <\/li>      <li>        <a href=\"#i-33\">\u30d5\u30a9\u30fc\u30e0\u5165\u529b\u5024\u306e\u691c\u8a3c\u3068\u51e6\u7406\u5206\u5c90<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-34\">API\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u57fa\u3065\u3044\u305f\u51e6\u7406\u306e\u5207\u308a\u66ff\u3048<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-35\">PHP 8.0\u4ee5\u964d\u306eswitch\u6587\u306e\u65b0\u6a5f\u80fd\u3068\u4ee3\u66ff\u624b\u6bb5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-36\">PHP 8.0\u306ematch\u5f0f\uff1aswitch\u6587\u306e\u9032\u5316\u5f62<\/a>      <\/li>      <li>        <a href=\"#i-37\">\u5217\u6319\u578b\uff08Enum\uff09\u3068switch\u6587\u306e\u7d44\u307f\u5408\u308f\u305b<\/a>      <\/li>      <li>        <a href=\"#i-38\">\u30e2\u30c0\u30f3PHP\u3067\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u306e\u6d3b\u7528\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-39\">switch\u6587\u3068match\u5f0f\u306e\u4f7f\u3044\u5206\u3051<\/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\u306eswitch\u6587\u306e\u57fa\u672c\uff1a\u521d\u5fc3\u8005\u3067\u3082\u308f\u304b\u308b\u6587\u6cd5\u89e3\u8aac<\/h2>\n\n\n\n<p>PHP\u306eswitch\u6587\u306f\u6761\u4ef6\u5206\u5c90\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3059\u308b\u305f\u3081\u306e\u5236\u5fa1\u69cb\u9020\u3067\u3059\u3002\u7279\u306b\u8907\u6570\u306e\u6761\u4ef6\u306b\u57fa\u3065\u3044\u3066\u7570\u306a\u308b\u51e6\u7406\u3092\u884c\u3044\u305f\u3044\u5834\u5408\u306b\u4fbf\u5229\u306a\u69cb\u6587\u3067\u3001if-elseif-else\u6587\u306e\u4ee3\u66ff\u3068\u3057\u3066\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>switch\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u306f\u3001\u3042\u308b\u5024\uff08\u901a\u5e38\u306f\u5909\u6570\uff09\u3068\u8907\u6570\u306e\u5024\uff08case\uff09\u3092\u6bd4\u8f03\u3057\u3001\u4e00\u81f4\u3057\u305f\u5834\u5408\u306b\u5bfe\u5fdc\u3059\u308b\u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af\u3092\u5b9f\u884c\u3059\u308b\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002\u3053\u306e\u4ed5\u7d44\u307f\u306b\u3088\u308a\u3001\u540c\u3058\u5909\u6570\u306b\u5bfe\u3059\u308b\u8907\u6570\u306e\u6761\u4ef6\u5206\u5c90\u3092\u898b\u3084\u3059\u304f\u6574\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>switch\u6587\u3092\u4f7f\u3044\u3053\u306a\u3059\u306b\u306f\u3001\u305d\u306e\u69cb\u6587\u306e\u57fa\u672c\u3001break\u6587\u306e\u5f79\u5272\u3001\u305d\u3057\u3066default\u53e5\u306e\u9069\u5207\u306a\u4f7f\u3044\u65b9\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u3053\u308c\u304b\u3089\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">switch\u6587\u306e\u57fa\u672c\u69cb\u6587\u3068\u305d\u306e\u8aad\u307f\u65b9<\/h3>\n\n\n\n<p>PHP\u306eswitch\u6587\u306e\u57fa\u672c\u69cb\u6587\u306f\u4ee5\u4e0b\u306e\u3088\u3046\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 (\u5f0f) {\n    case \u50241:\n        \/\/ \u5f0f == \u50241 \u306e\u5834\u5408\u306b\u5b9f\u884c\u3055\u308c\u308b\u51e6\u7406\n        \u51e6\u74061;\n        break;\n    case \u50242:\n        \/\/ \u5f0f == \u50242 \u306e\u5834\u5408\u306b\u5b9f\u884c\u3055\u308c\u308b\u51e6\u7406\n        \u51e6\u74062;\n        break;\n    \/\/ \u5fc5\u8981\u306a\u3060\u3051case\u3092\u8ffd\u52a0\u3067\u304d\u307e\u3059\n    default:\n        \/\/ \u3069\u306ecase\u306b\u3082\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306b\u5b9f\u884c\u3055\u308c\u308b\u51e6\u7406\n        \u30c7\u30d5\u30a9\u30eb\u30c8\u51e6\u7406;\n}\n<\/pre>\n\n\n\n<p>switch\u6587\u306f\u4ee5\u4e0b\u306e\u9806\u5e8f\u3067\u8aad\u307f\u89e3\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u307e\u305a<code>switch (\u5f0f)<\/code>\u3067\u8a55\u4fa1\u3059\u308b\u5f0f\uff08\u901a\u5e38\u306f\u5909\u6570\uff09\u3092\u6307\u5b9a\u3057\u307e\u3059<\/li>\n\n\n\n<li>\u6b21\u306b\u5404<code>case \u5024:<\/code>\u3068\u5f0f\u306e\u7d50\u679c\u3092\u300c==\u300d\u6f14\u7b97\u5b50\u3067\u6bd4\u8f03\u3057\u307e\u3059<\/li>\n\n\n\n<li>\u4e00\u81f4\u3059\u308bcase\u304c\u898b\u3064\u304b\u308b\u3068\u3001\u305d\u306ecase\u4ee5\u964d\u306e\u51e6\u7406\u3092\u5b9f\u884c\u3057\u307e\u3059<\/li>\n\n\n\n<li><code>break<\/code>\u6587\u306b\u5230\u9054\u3059\u308b\u3068\u3001switch\u6587\u5168\u4f53\u304b\u3089\u629c\u3051\u51fa\u3057\u307e\u3059<\/li>\n\n\n\n<li>\u3069\u306ecase\u3068\u3082\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306f\u3001<code>default<\/code>\u7bc0\u306e\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059<\/li>\n<\/ol>\n\n\n\n<p>\u5177\u4f53\u4f8b\u3092\u898b\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=\"\">$fruit = 'apple';\n\nswitch ($fruit) {\n    case 'banana':\n        echo \"\u9ec4\u8272\u3044\u679c\u7269\u3067\u3059\";\n        break;\n    case 'apple':  \/\/ $fruit == 'apple' \u306f\u771f\u3068\u306a\u308b\u305f\u3081\u3001\u3053\u306e\u30b1\u30fc\u30b9\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\n        echo \"\u8d64\u3044\u679c\u7269\u3067\u3059\";  \/\/ \"\u8d64\u3044\u679c\u7269\u3067\u3059\" \u304c\u51fa\u529b\u3055\u308c\u307e\u3059\n        break;\n    case 'kiwi':\n        echo \"\u7dd1\u306e\u679c\u7269\u3067\u3059\";\n        break;\n    default:\n        echo \"\u4e0d\u660e\u306a\u679c\u7269\u3067\u3059\";\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code>$fruit<\/code>\u306e\u5024\u304c<code>'apple'<\/code>\u306a\u306e\u3067\u30012\u756a\u76ee\u306ecase\u304c\u4e00\u81f4\u3057\u3001\u300c\u8d64\u3044\u679c\u7269\u3067\u3059\u300d\u304c\u51fa\u529b\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001break\u6587\u306b\u3088\u308aswitch\u6587\u3092\u629c\u3051\u51fa\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">switch\u6587\u3067\u4f7f\u7528\u3059\u308bbreak\u6587\u306e\u91cd\u8981\u6027<\/h3>\n\n\n\n<p>switch\u6587\u306b\u304a\u3044\u3066<code>break<\/code>\u6587\u306f\u975e\u5e38\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002<code>break<\/code>\u6587\u306f\u3001\u4e00\u81f4\u3057\u305fcase\u51e6\u7406\u306e\u7d42\u4e86\u3092\u660e\u793a\u7684\u306b\u793a\u3057\u3001switch\u6587\u304b\u3089\u629c\u3051\u51fa\u3059\u547d\u4ee4\u3067\u3059\u3002\u3053\u306e<code>break<\/code>\u6587\u3092\u7701\u7565\u3059\u308b\u3068\u3001\u4e88\u671f\u305b\u306c\u52d5\u4f5c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-3\">break\u6587\u3092\u7701\u7565\u3057\u305f\u5834\u5408\u306e\u52d5\u4f5c\uff08\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\uff09<\/h4>\n\n\n\n<p><code>break<\/code>\u6587\u3092\u7701\u7565\u3059\u308b\u3068\u3001\u4e00\u81f4\u3057\u305fcase\u306e\u51e6\u7406\u304c\u7d42\u308f\u3063\u305f\u5f8c\u3082\u6b21\u306ecase\u306e\u51e6\u7406\u304c<strong>\u7d9a\u3051\u3066\u5b9f\u884c<\/strong>\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3092\u300c\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\uff08fall-through\uff09\u300d\u3068\u547c\u3073\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=\"\">$score = 85;\n\nswitch ($score) {\n    case 90:\n        echo \"\u512a\";\n        \/\/ break\u6587\u304c\u306a\u3044\uff01\n    case 80:\n        echo \"\u826f\";  \/\/ $score == 80 \u3067\u306f\u306a\u3044\u304c\u3001\u4e0a\u306ecase\u304b\u3089\u300c\u843d\u4e0b\u300d\u3057\u3066\u304d\u3066\u5b9f\u884c\u3055\u308c\u308b\n        \/\/ break\u6587\u304c\u306a\u3044\uff01\n    case 70:\n        echo \"\u53ef\";  \/\/ \u3053\u308c\u3082\u5b9f\u884c\u3055\u308c\u308b\n        \/\/ break\u6587\u304c\u306a\u3044\uff01\n    default:\n        echo \"\u4e0d\u53ef\";  \/\/ \u3053\u308c\u3082\u5b9f\u884c\u3055\u308c\u308b\n}\n\/\/ \u7d50\u679c: \"\u826f\u53ef\u4e0d\u53ef\" \u304c\u51fa\u529b\u3055\u308c\u308b\n<\/pre>\n\n\n\n<p>\u4e0a\u8a18\u306e\u4f8b\u3067\u306f<code>$score<\/code>\u304c85\u3067<code>case 80:<\/code>\u306b\u4e00\u81f4\u3059\u308b\u305f\u3081\u3001\u300c\u826f\u300d\u304c\u51fa\u529b\u3055\u308c\u307e\u3059\u304c\u3001break\u6587\u304c\u306a\u3044\u305f\u3081\u51e6\u7406\u304c\u305d\u3053\u3067\u6b62\u307e\u3089\u305a\u3001\u6b21\u306e\u300c\u53ef\u300d\u300c\u4e0d\u53ef\u300d\u3082\u7d9a\u3051\u3066\u51fa\u529b\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-4\">break\u6587\u306e\u91cd\u8981\u6027<\/h4>\n\n\n\n<p><code>break<\/code>\u6587\u306e\u6b20\u5982\u306f\u3001\u6700\u3082\u4e00\u822c\u7684\u306aswitch\u6587\u306e\u30d0\u30b0\u306e\u4e00\u3064\u3067\u3059\u3002\u5404case\u306e\u6700\u5f8c\u306b\u306f\u539f\u5247\u3068\u3057\u3066<code>break<\/code>\u6587\u3092\u8a18\u8ff0\u3057\u3001\u610f\u56f3\u3057\u306a\u3044\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u3092\u9632\u3050\u3053\u3068\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=\"\">\/\/ \u6b63\u3057\u3044\u4f7f\u7528\u4f8b\n$score = 85;\n\nswitch ($score) {\n    case 90:\n        echo \"\u512a\";\n        break;  \/\/ \u51e6\u7406\u3092\u7d42\u4e86\u3057\u3001switch\u6587\u304b\u3089\u629c\u3051\u308b\n    case 80:\n        echo \"\u826f\";\n        break;  \/\/ \u51e6\u7406\u3092\u7d42\u4e86\u3057\u3001switch\u6587\u304b\u3089\u629c\u3051\u308b\n    case 70:\n        echo \"\u53ef\";\n        break;  \/\/ \u51e6\u7406\u3092\u7d42\u4e86\u3057\u3001switch\u6587\u304b\u3089\u629c\u3051\u308b\n    default:\n        echo \"\u4e0d\u53ef\";\n}\n\/\/ \u7d50\u679c: \"\u826f\" \u306e\u307f\u304c\u51fa\u529b\u3055\u308c\u308b\n<\/pre>\n\n\n\n<p>\u5f8c\u8ff0\u3057\u307e\u3059\u304c\u3001\u610f\u56f3\u7684\u306b\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u3092\u5229\u7528\u3059\u308b\u30c6\u30af\u30cb\u30c3\u30af\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u591a\u304f\u306e\u5834\u5408\u306f\u5404case\u306b<code>break<\/code>\u6587\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">default\u53e5\u306e\u5f79\u5272\u3068\u9069\u5207\u306a\u4f7f\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>switch\u6587\u306b\u304a\u3044\u3066<code>default<\/code>\u53e5\u306f\u3001\u3069\u306ecase\u306b\u3082\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306b\u5b9f\u884c\u3055\u308c\u308b\u300c\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u51e6\u7406\u300d\u3092\u5b9a\u7fa9\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002\u3053\u308c\u306f\u4ed6\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u3044\u3046\u300celse\u300d\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-6\">default\u53e5\u306e\u57fa\u672c\u7684\u306a\u5f79\u5272<\/h4>\n\n\n\n<p><code>default<\/code>\u53e5\u306e\u4e3b\u306a\u5f79\u5272\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u60f3\u5b9a\u5916\u306e\u5024\u306b\u5bfe\u3059\u308b\u51e6\u7406\u3092\u63d0\u4f9b\u3059\u308b<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u6a5f\u4f1a\u3092\u4e0e\u3048\u308b<\/li>\n\n\n\n<li>\u51e6\u7406\u306e\u7db2\u7f85\u6027\u3092\u4fdd\u8a3c\u3059\u308b<\/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=\"\">$dayOfWeek = 8;  \/\/ \u7121\u52b9\u306a\u5024\uff081-7\u304c\u6709\u52b9\u7bc4\u56f2\uff09\n\nswitch ($dayOfWeek) {\n    case 1:\n        echo \"\u6708\u66dc\u65e5\";\n        break;\n    case 2:\n        echo \"\u706b\u66dc\u65e5\";\n        break;\n    \/\/ case 3-7\u306f\u7701\u7565\n    default:\n        echo \"\u7121\u52b9\u306a\u66dc\u65e5\u756a\u53f7\u3067\u3059\";  \/\/ 8\u306f\u7121\u52b9\u306a\u306e\u3067\u3001\u3053\u3053\u304c\u5b9f\u884c\u3055\u308c\u308b\n}\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-7\">default\u53e5\u306e\u7701\u7565\u3068\u5f71\u97ff<\/h4>\n\n\n\n<p><code>default<\/code>\u53e5\u306f\u6280\u8853\u7684\u306b\u306f\u7701\u7565\u53ef\u80fd\u3067\u3059\u304c\u3001\u7701\u7565\u3059\u308b\u3068\u60f3\u5b9a\u5916\u306e\u5165\u529b\u5024\u306b\u5bfe\u3057\u3066\u4f55\u3082\u51e6\u7406\u3055\u308c\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=\"\">$status = 'unknown';  \/\/ \u60f3\u5b9a\u5916\u306e\u5024\n\nswitch ($status) {\n    case 'active':\n        echo \"\u30a2\u30af\u30c6\u30a3\u30d6\u30e6\u30fc\u30b6\u30fc\";\n        break;\n    case 'inactive':\n        echo \"\u975e\u30a2\u30af\u30c6\u30a3\u30d6\u30e6\u30fc\u30b6\u30fc\";\n        break;\n    \/\/ default\u304c\u306a\u3044\u305f\u3081\u3001'unknown'\u306b\u5bfe\u3057\u3066\u306f\u4f55\u3082\u51fa\u529b\u3055\u308c\u306a\u3044\n}\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-8\">default\u53e5\u306e\u9069\u5207\u306a\u4f7f\u7528\u6cd5<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/strong>: \u60f3\u5b9a\u5916\u306e\u5024\u306b\u5bfe\u3057\u3066\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3057\u305f\u308a\u30ed\u30b0\u306b\u8a18\u9332\u3057\u305f\u308a\u3057\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=\"\">switch ($userRole) {\n    case 'admin':\n        showAdminPanel();\n        break;\n    case 'editor':\n        showEditorPanel();\n        break;\n    case 'user':\n        showUserPanel();\n        break;\n    default:\n        logError(\"\u672a\u77e5\u306e\u30e6\u30fc\u30b6\u30fc\u30ed\u30fc\u30eb: \" . $userRole);\n        showErrorMessage(\"\u6a29\u9650\u30a8\u30e9\u30fc\");\n}\n<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u914d\u7f6e\u5834\u6240<\/strong>: \u6163\u7fd2\u7684\u306b<code>default<\/code>\u53e5\u306f\u6700\u5f8c\u306b\u914d\u7f6e\u3057\u307e\u3059\u304c\u3001\u6280\u8853\u7684\u306b\u306f\u4efb\u610f\u306e\u4f4d\u7f6e\u306b\u7f6e\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u53ef\u8aad\u6027\u306e\u305f\u3081\u306b\u6700\u5f8c\u306b\u914d\u7f6e\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>break\u6587<\/strong>: <code>default<\/code>\u53e5\u304c\u6700\u5f8c\u306b\u3042\u3063\u3066\u3082<code>break<\/code>\u6587\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3067\u3001\u610f\u56f3\u3092\u660e\u78ba\u306b\u3057\u3001\u5c06\u6765\u7684\u306bcase\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3082\u554f\u984c\u304c\u8d77\u304d\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5805\u7262\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u3067\u306f\u3001\u5e38\u306b<code>default<\/code>\u53e5\u3092\u8a2d\u3051\u3066\u60f3\u5b9a\u5916\u306e\u30b1\u30fc\u30b9\u306b\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u304c\u826f\u3044\u7fd2\u6163\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-9\">if-else\u6587\u3068\u306e\u6bd4\u8f03\uff1a\u3069\u3061\u3089\u3092\u9078\u3076\u3079\u304d\u304b<\/h2>\n\n\n\n<p>PHP\u3067\u306e\u6761\u4ef6\u5206\u5c90\u51e6\u7406\u3092\u5b9f\u88c5\u3059\u308b\u969b\u3001\u591a\u304f\u306e\u958b\u767a\u8005\u304c\u300cswitch\u6587\u3092\u4f7f\u3046\u3079\u304d\u304b\u3001\u305d\u308c\u3068\u3082if-else\u6587\u3092\u4f7f\u3046\u3079\u304d\u304b\u300d\u3068\u3044\u3046\u9078\u629e\u306b\u8ff7\u3044\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u306b\u9577\u6240\u3068\u77ed\u6240\u304c\u3042\u308a\u3001\u72b6\u6cc1\u306b\u3088\u3063\u3066\u9069\u5207\u306a\u9078\u629e\u306f\u5909\u308f\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u4e21\u8005\u3092\u6bd4\u8f03\u3057\u3001\u9069\u5207\u306a\u4f7f\u3044\u5206\u3051\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u57fa\u672c\u7684\u306a\u9055\u3044<\/h3>\n\n\n\n<p>\u307e\u305a\u3001\u4e21\u8005\u306e\u57fa\u672c\u7684\u306a\u9055\u3044\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n<div id=\"id-bdae68f3-15d2-4a30-a171-49bcdecd6a0c\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u5fb4<\/th><th>switch\u6587<\/th><th>if-else\u6587<\/th><\/tr><\/thead><tbody><tr><td>\u8a55\u4fa1\u5bfe\u8c61<\/td><td>\u5358\u4e00\u306e\u5f0f\/\u5909\u6570\u3092\u8907\u6570\u306e\u5024\u3068\u6bd4\u8f03<\/td><td>\u8907\u6570\u306e\u72ec\u7acb\u3057\u305f\u6761\u4ef6\u3092\u8a55\u4fa1\u53ef\u80fd<\/td><\/tr><tr><td>\u6bd4\u8f03\u6f14\u7b97\u5b50<\/td><td>==\uff08\u7b49\u4fa1\u6bd4\u8f03\uff09\u306e\u307f<\/td><td>\u3042\u3089\u3086\u308b\u6bd4\u8f03\u6f14\u7b97\u5b50\uff08==, !=, &gt;, &lt;, &gt;=, &lt;=\uff09\u304c\u4f7f\u7528\u53ef\u80fd<\/td><\/tr><tr><td>\u30b3\u30fc\u30c9\u69cb\u9020<\/td><td>\u30d6\u30ed\u30c3\u30af\u5185\u306bcase\u6587\u3067\u8907\u6570\u306e\u6761\u4ef6\u5206\u5c90<\/td><td>\u968e\u5c64\u7684\u306aif-elseif-else\u69cb\u9020<\/td><\/tr><tr><td>\u6761\u4ef6\u8a55\u4fa1<\/td><td>\u5f0f\u306e\u7d50\u679c\u3068\u5404case\u306e\u5024\u3092\u6bd4\u8f03<\/td><td>\u5404\u6761\u4ef6\u5f0f\u3092\u500b\u5225\u306b\u8a55\u4fa1<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u4ee5\u4e0b\u306b\u540c\u3058\u51e6\u7406\u3092switch\u6587\u3068if-else\u6587\u3067\u5b9f\u88c5\u3057\u305f\u4f8b\u3092\u793a\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=\"\">\/\/ switch\u6587\u306e\u4f8b\n$fruit = 'apple';\nswitch ($fruit) {\n    case 'apple':\n        echo \"\u3053\u308c\u306f\u308a\u3093\u3054\u3067\u3059\";\n        break;\n    case 'orange':\n        echo \"\u3053\u308c\u306f\u30aa\u30ec\u30f3\u30b8\u3067\u3059\";\n        break;\n    case 'banana':\n        echo \"\u3053\u308c\u306f\u30d0\u30ca\u30ca\u3067\u3059\";\n        break;\n    default:\n        echo \"\u4e0d\u660e\u306a\u679c\u7269\u3067\u3059\";\n}\n\n\/\/ \u540c\u7b49\u306eif-else\u6587\n$fruit = 'apple';\nif ($fruit == 'apple') {\n    echo \"\u3053\u308c\u306f\u308a\u3093\u3054\u3067\u3059\";\n} elseif ($fruit == 'orange') {\n    echo \"\u3053\u308c\u306f\u30aa\u30ec\u30f3\u30b8\u3067\u3059\";\n} elseif ($fruit == 'banana') {\n    echo \"\u3053\u308c\u306f\u30d0\u30ca\u30ca\u3067\u3059\";\n} else {\n    echo \"\u4e0d\u660e\u306a\u679c\u7269\u3067\u3059\";\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3060\u3051\u3067\u306f\u5927\u304d\u306a\u9055\u3044\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u6761\u4ef6\u5206\u5c90\u304c\u5897\u3048\u308b\u306b\u3064\u308c\u3066\u4e21\u8005\u306e\u7279\u6027\u306e\u9055\u3044\u304c\u660e\u78ba\u306b\u306a\u3063\u3066\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u89b3\u70b9\u304b\u3089\u6bd4\u8f03\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u53ef\u8aad\u6027\u306e\u89b3\u70b9\u304b\u3089\u307f\u305fswitch\u6587\u306e\u5229\u70b9<\/h3>\n\n\n\n<p>switch\u6587\u306e\u6700\u5927\u306e\u5229\u70b9\u306e\u4e00\u3064\u306f\u3001\u8907\u6570\u306e\u6761\u4ef6\u5206\u5c90\u3092\u6271\u3046\u969b\u306e<strong>\u53ef\u8aad\u6027<\/strong>\u3067\u3059\u3002\u7279\u306b\u540c\u3058\u5909\u6570\u306b\u5bfe\u3059\u308b\u591a\u6570\u306e\u6761\u4ef6\u5206\u5c90\u304c\u3042\u308b\u5834\u5408\u3001switch\u6587\u306f\u4ee5\u4e0b\u306e\u70b9\u3067\u512a\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-12\">\u8996\u899a\u7684\u306a\u69cb\u9020\u306e\u660e\u78ba\u3055<\/h4>\n\n\n\n<p>switch\u6587\u306f\u6761\u4ef6\u5206\u5c90\u304c\u8996\u899a\u7684\u306b\u6574\u7406\u3055\u308c\u3001\u5404case\u304c\u540c\u3058\u30ec\u30d9\u30eb\u306e\u30a4\u30f3\u30c7\u30f3\u30c8\u3067\u4e26\u3073\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u6761\u4ef6\u304c\u5897\u3048\u3066\u3082\u5168\u4f53\u306e\u69cb\u9020\u304c\u628a\u63e1\u3057\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=\"\">\/\/ \u591a\u6570\u306e\u6761\u4ef6\u5206\u5c90\u306eswitch\u6587\nswitch ($statusCode) {\n    case 200: return \"OK\";\n    case 201: return \"Created\";\n    case 204: return \"No Content\";\n    case 400: return \"Bad Request\";\n    case 401: return \"Unauthorized\";\n    case 403: return \"Forbidden\";\n    case 404: return \"Not Found\";\n    case 500: return \"Internal Server Error\";\n    default: return \"Unknown Status Code\";\n}\n<\/pre>\n\n\n\n<p>\u540c\u7b49\u306e\u51e6\u7406\u3092if-elseif\u6587\u3067\u66f8\u304f\u3068\u3001\u6761\u4ef6\u5f0f\u306e\u7e70\u308a\u8fd4\u3057\u306b\u3088\u308a\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=\"\">\/\/ \u540c\u3058\u51e6\u7406\u3092if-elseif\u6587\u3067\u66f8\u3044\u305f\u5834\u5408\nif ($statusCode == 200) {\n    return \"OK\";\n} elseif ($statusCode == 201) {\n    return \"Created\";\n} elseif ($statusCode == 204) {\n    return \"No Content\";\n} elseif ($statusCode == 400) {\n    return \"Bad Request\";\n} \/\/ \u4ee5\u4e0b\u7d9a\u304f...\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-13\">\u30b3\u30fc\u30c9\u306e\u4fee\u6b63\u3068\u4fdd\u5b88\u306e\u5bb9\u6613\u3055<\/h4>\n\n\n\n<p>switch\u6587\u3067\u306f\u7279\u5b9a\u306e\u6761\u4ef6\uff08case\uff09\u3092\u63a2\u3057\u3084\u3059\u304f\u3001\u65b0\u3057\u3044\u6761\u4ef6\u306e\u8ffd\u52a0\u3084\u65e2\u5b58\u306e\u6761\u4ef6\u306e\u4fee\u6b63\u304c\u5bb9\u6613\u3067\u3059\u3002\u307e\u305f\u3001\u5909\u6570\u540d\u306e\u5909\u66f4\u3082\u4e00\u7b87\u6240\u3060\u3051\u3067\u6e08\u307f\u307e\u3059\u3002\u9577\u671f\u7684\u306a\u30b3\u30fc\u30c9\u4fdd\u5b88\u306e\u89b3\u70b9\u304b\u3089\u3082\u3001\u591a\u5206\u5c90\u6761\u4ef6\u3067\u306fswitch\u6587\u304c\u512a\u4f4d\u6027\u3092\u6301\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u51e6\u7406\u901f\u5ea6\u306e\u6bd4\u8f03\uff1a\u591a\u5206\u5c90\u6761\u4ef6\u3067\u306fswitch\u6587\u304c\u6709\u5229<\/h3>\n\n\n\n<p>\u6761\u4ef6\u5206\u5c90\u304c\u591a\u3044\u5834\u5408\u3001switch\u6587\u306fif-elseif\u6587\u3068\u6bd4\u8f03\u3057\u3066\u51e6\u7406\u901f\u5ea6\u9762\u3067\u3082\u512a\u4f4d\u6027\u3092\u6301\u3064\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u7406\u7531\u306fPHP\u30a8\u30f3\u30b8\u30f3\u306e\u5185\u90e8\u5b9f\u88c5\u306b\u95a2\u4fc2\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-15\">PHP\u30a8\u30f3\u30b8\u30f3\u306b\u3088\u308b\u6700\u9069\u5316<\/h4>\n\n\n\n<p>PHP\u306e\u30a4\u30f3\u30bf\u30fc\u30d7\u30ea\u30bf\u306f\u3001switch\u6587\u3092\u51e6\u7406\u3059\u308b\u969b\u306b\u5185\u90e8\u7684\u306b\u300c\u30b8\u30e3\u30f3\u30d7\u30c6\u30fc\u30d6\u30eb\u300d\u3068\u547c\u3070\u308c\u308b\u6700\u9069\u5316\u3055\u308c\u305f\u69cb\u9020\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u7279\u306b\u6574\u6570\u5024\u3084\u6587\u5b57\u5217\u5b9a\u6570\u306a\u3069\u306e\u5358\u7d14\u306a\u5024\u3092\u6bd4\u8f03\u3059\u308b\u5834\u5408\u306b\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4e00\u65b9\u3001if-elseif\u6587\u306f\u5404\u6761\u4ef6\u3092\u4e0a\u304b\u3089\u9806\u306b\u8a55\u4fa1\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u6700\u60aa\u306e\u30b1\u30fc\u30b9\uff08\u6700\u5f8c\u306e\u6761\u4ef6\u3084 else \u53e5\u306b\u4e00\u81f4\u3059\u308b\u5834\u5408\uff09\u3067\u306f\u3001\u5168\u3066\u306e\u6761\u4ef6\u3092\u8a55\u4fa1\u3059\u308b\u3053\u3068\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=\"\">\/\/ \u591a\u5206\u5c90\u6761\u4ef6\u306e\u4f8b\n$dayNumber = date('N');  \/\/ 1\uff08\u6708\u66dc\uff09\uff5e7\uff08\u65e5\u66dc\uff09\u306e\u6570\u5024\n\n\/\/ switch\u6587\u306e\u5834\u5408\nswitch ($dayNumber) {\n    case 1: $day = \"\u6708\u66dc\u65e5\"; break;\n    case 2: $day = \"\u706b\u66dc\u65e5\"; break;\n    case 3: $day = \"\u6c34\u66dc\u65e5\"; break;\n    case 4: $day = \"\u6728\u66dc\u65e5\"; break;\n    case 5: $day = \"\u91d1\u66dc\u65e5\"; break;\n    case 6: $day = \"\u571f\u66dc\u65e5\"; break;\n    case 7: $day = \"\u65e5\u66dc\u65e5\"; break;\n}\n\n\/\/ if-elseif\u6587\u306e\u5834\u5408\nif ($dayNumber == 1) {\n    $day = \"\u6708\u66dc\u65e5\";\n} elseif ($dayNumber == 2) {\n    $day = \"\u706b\u66dc\u65e5\";\n} \/\/ \u4ee5\u4e0b\u7d9a\u304f...\n<\/pre>\n\n\n\n<p>\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001\u4f8b\u3048\u3070\u571f\u66dc\u65e5\uff08$dayNumber = 6\uff09\u306e\u5834\u5408\u3001if-elseif\u6587\u3067\u306f5\u3064\u306e\u6761\u4ef6\u3092\u8a55\u4fa1\u3057\u305f\u5f8c\u306b\u4e00\u81f4\u3057\u307e\u3059\u304c\u3001switch\u6587\u3067\u306f\u30b8\u30e3\u30f3\u30d7\u30c6\u30fc\u30d6\u30eb\u306b\u3088\u308a\u307b\u307c\u76f4\u63a5\u8a72\u5f53\u3059\u308b\u30b1\u30fc\u30b9\u3092\u5b9f\u884c\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-16\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5dee\u306e\u5b9f\u969b<\/h4>\n\n\n\n<p>\u5b9f\u969b\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5dee\u306f\u4ee5\u4e0b\u306e\u8981\u56e0\u306b\u3088\u308a\u5909\u52d5\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6761\u4ef6\u5206\u5c90\u306e\u6570<\/strong>: \u4e00\u822c\u7684\u306b\u5206\u5c90\u304c5-7\u500b\u4ee5\u4e0a\u3042\u308b\u5834\u5408\u306bswitch\u6587\u306e\u512a\u4f4d\u6027\u304c\u73fe\u308c\u3084\u3059\u3044<\/li>\n\n\n\n<li><strong>\u6bd4\u8f03\u3059\u308b\u5024\u306e\u578b<\/strong>: \u6574\u6570\u5024\u306e\u3088\u3046\u306a\u5358\u7d14\u306a\u578b\u306e\u6bd4\u8f03\u3067\u306f\u6700\u9069\u5316\u304c\u52b9\u304d\u3084\u3059\u3044<\/li>\n\n\n\n<li><strong>PHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3<\/strong>: PHP 8.0\u4ee5\u964d\u306fJIT\u30b3\u30f3\u30d1\u30a4\u30e9\u304c\u5c0e\u5165\u3055\u308c\u3001\u4e21\u65b9\u306e\u69cb\u6587\u306e\u6700\u9069\u5316\u304c\u5411\u4e0a<\/li>\n<\/ol>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u591a\u304f\u306e\u5b9f\u7528\u7684\u306a\u30b7\u30ca\u30ea\u30aa\u3067\u306f\u3053\u306e\u51e6\u7406\u901f\u5ea6\u306e\u5dee\u306f\u30df\u30ea\u79d2\u4ee5\u4e0b\u3067\u3042\u308a\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30af\u30a8\u30ea\u3084\u30d5\u30a1\u30a4\u30eb\u64cd\u4f5c\u306a\u3069\u306e\u4ed6\u306e\u51e6\u7406\u306b\u6bd4\u3079\u308c\u3070\u7121\u8996\u3067\u304d\u308b\u30ec\u30d9\u30eb\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3060\u3051\u3092\u7406\u7531\u306bswitch\u6587\u3092\u9078\u3076\u3079\u304d\u3067\u306f\u306a\u304f\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3084\u4fdd\u5b88\u6027\u3082\u542b\u3081\u3066\u7dcf\u5408\u7684\u306b\u5224\u65ad\u3059\u308b\u306e\u304c\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u30b3\u30fc\u30c9\u306e\u4fdd\u5b88\u6027\u3068\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u3078\u306e\u5f71\u97ff<\/h3>\n\n\n\n<p>\u30b3\u30fc\u30c9\u306e\u4fdd\u5b88\u6027\u3068\u306f\u3001\u6642\u9593\u306e\u7d4c\u904e\u3068\u3068\u3082\u306b\u30b3\u30fc\u30c9\u3092\u5909\u66f4\u30fb\u62e1\u5f35\u30fb\u4fee\u6b63\u3059\u308b\u969b\u306e\u5bb9\u6613\u3055\u3092\u6307\u3057\u307e\u3059\u3002\u3053\u306e\u89b3\u70b9\u304b\u3089\u3082switch\u6587\u3068if-else\u6587\u306b\u306f\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-18\">\u30b3\u30fc\u30c9\u306e\u5909\u66f4\u3068\u62e1\u5f35<\/h4>\n\n\n\n<p>switch\u6587\u306f\u69cb\u9020\u5316\u3055\u308c\u305f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u6301\u3064\u305f\u3081\u3001\u65b0\u3057\u3044\u6761\u4ef6\u306e\u8ffd\u52a0\u3084\u65e2\u5b58\u306e\u6761\u4ef6\u306e\u4fee\u6b63\u304c\u4e00\u76ee\u3067\u5206\u304b\u308a\u3084\u3059\u304f\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=\"\">\/\/ \u65b0\u3057\u3044\u6761\u4ef6\u306e\u8ffd\u52a0\u304c\u8996\u899a\u7684\u306b\u660e\u78ba\nswitch ($httpStatus) {\n    case 200: return \"OK\";\n    case 404: return \"Not Found\";\n    case 500: return \"Server Error\";\n    \/\/ \u65b0\u3057\u3044\u6761\u4ef6\u3092\u8ffd\u52a0\u3059\u308b\u306e\u306f\u7c21\u5358\n    case 403: return \"Forbidden\";  \/\/ \u2190 \u65b0\u3057\u304f\u8ffd\u52a0\u3055\u308c\u305f\u6761\u4ef6\n    default: return \"Unknown\";\n}\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-19\">\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u3078\u306e\u5f71\u97ff<\/h4>\n\n\n\n<p>\u30b3\u30fc\u30c9\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u6642\u306b\u3082\u3001switch\u6587\u306f\u4ee5\u4e0b\u306e\u70b9\u3067\u512a\u4f4d\u6027\u3092\u6301\u3061\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5909\u6570\u540d\u306e\u5909\u66f4<\/strong>: switch\u6587\u3067\u306f\u8a55\u4fa1\u3059\u308b\u5909\u6570\u306f\u4e00\u7b87\u6240\u3060\u3051\u306a\u306e\u3067\u3001\u5909\u6570\u540d\u306e\u5909\u66f4\u304c\u5bb9\u6613\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>\u62bd\u8c61\u5316<\/strong>: \u6761\u4ef6\u30ed\u30b8\u30c3\u30af\u3092\u3088\u308a\u9ad8\u5ea6\u306a\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3\uff08Strategy\u3001State\u30d1\u30bf\u30fc\u30f3\u306a\u3069\uff09\u306b\u79fb\u884c\u3059\u308b\u969b\u3001switch\u6587\u306e\u307b\u3046\u304c\u6761\u4ef6\u306e\u5168\u4f53\u50cf\u3092\u628a\u63e1\u3057\u3084\u3059\u3044\u305f\u3081\u3001\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u304c\u9032\u3081\u3084\u3059\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-20\">\u3088\u308a\u9ad8\u5ea6\u306a\u30d1\u30bf\u30fc\u30f3\u3078\u306e\u79fb\u884c<\/h4>\n\n\n\n<p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u6210\u9577\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u5358\u7d14\u306a\u6761\u4ef6\u5206\u5c90\u304b\u3089\u3001\u3088\u308a\u6d17\u7df4\u3055\u308c\u305f\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3078\u306e\u79fb\u884c\u304c\u5fc5\u8981\u306b\u306a\u308b\u3053\u3068\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=\"\">\/\/ \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u524d: switch\u6587\nfunction getShippingCost($method) {\n    switch ($method) {\n        case 'standard': return calculateStandardShipping();\n        case 'express': return calculateExpressShipping();\n        case 'overnight': return calculateOvernightShipping();\n        default: throw new Exception(\"Unknown shipping method\");\n    }\n}\n\n\/\/ \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u5f8c: Strategy\u30d1\u30bf\u30fc\u30f3\n$shippingStrategies = [\n    'standard' =&gt; new StandardShippingStrategy(),\n    'express' =&gt; new ExpressShippingStrategy(),\n    'overnight' =&gt; new OvernightShippingStrategy(),\n];\n\nfunction getShippingCost($method) {\n    global $shippingStrategies;\n    if (!isset($shippingStrategies[$method])) {\n        throw new Exception(\"Unknown shipping method\");\n    }\n    return $shippingStrategies[$method]-&gt;calculate();\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u9032\u5316\u7684\u306a\u5909\u66f4\u3082\u3001\u5143\u306e\u30b3\u30fc\u30c9\u304cswitch\u6587\u3067\u6574\u7406\u3055\u308c\u3066\u3044\u308c\u3070\u3001\u6761\u4ef6\u306e\u5168\u4f53\u50cf\u3092\u628a\u63e1\u3057\u3084\u3059\u304f\u3001\u79fb\u884c\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-21\">PHP switch\u6587\u3092\u4f7f\u3044\u3053\u306a\u30595\u3064\u306e\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<p>\u57fa\u672c\u3092\u7406\u89e3\u3057\u305f\u3068\u3053\u308d\u3067\u3001PHP\u306eswitch\u6587\u3092\u3088\u308a\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3059\u308b\u305f\u3081\u306e\u5b9f\u8df5\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002\u3053\u308c\u3089\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7fd2\u5f97\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u67d4\u8edf\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-22\">\u30c6\u30af\u30cb\u30c3\u30af1\uff1a\u8907\u6570\u306e\u6761\u4ef6\u3092\u4e00\u3064\u306ecase\u6587\u3067\u51e6\u7406\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u540c\u3058\u51e6\u7406\u3092\u884c\u3044\u305f\u3044\u8907\u6570\u306e\u6761\u4ef6\u304c\u3042\u308b\u5834\u5408\u3001\u5404\u6761\u4ef6\u306b\u5bfe\u3057\u3066\u5225\u3005\u306ecase\u6587\u3092\u8a18\u8ff0\u3057\u3001break\u3092\u7701\u7565\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u3092\u7c21\u6f54\u306b\u3059\u308b\u3053\u3068\u304c\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=\"\">$day = 'Saturday';\n\nswitch ($day) {\n    case 'Saturday':\n    case 'Sunday':\n        $message = '\u9031\u672b\u3067\u3059\u3002\u3086\u3063\u304f\u308a\u4f11\u307f\u307e\u3057\u3087\u3046\u3002';\n        break;\n    case 'Friday':\n        $message = '\u91d1\u66dc\u65e5\u3067\u3059\u3002\u3082\u3046\u5c11\u3057\u3067\u9031\u672b\u3067\u3059\u3002';\n        break;\n    default:\n        $message = '\u5e73\u65e5\u3067\u3059\u3002\u9811\u5f35\u308a\u307e\u3057\u3087\u3046\u3002';\n}\n\necho $message; \/\/ \u7d50\u679c: '\u9031\u672b\u3067\u3059\u3002\u3086\u3063\u304f\u308a\u4f11\u307f\u307e\u3057\u3087\u3046\u3002'\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u2019Saturday\u2019\u3068\u2019Sunday\u2019\u306e\u5834\u5408\u306b\u540c\u3058\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u6700\u521d\u306ecase\u6587\u306b\u306fbreak\u304c\u306a\u3044\u305f\u3081\u3001\u2019Saturday\u2019\u306e\u5834\u5408\u306f\u6b21\u306ecase\u6587\uff08\u2019Sunday\u2019\uff09\u306b\u300c\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u300d\u3057\u3066\u3001\u305d\u306e\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u30c6\u30af\u30cb\u30c3\u30af\u306f\u7279\u306b\u72b6\u614b\u30b0\u30eb\u30fc\u30d7\uff08\u5e73\u65e5\/\u9031\u672b\u3001\u6709\u52b9\/\u7121\u52b9\/\u4fdd\u7559\u306a\u3069\uff09\u3092\u6271\u3046\u5834\u5408\u306b\u975e\u5e38\u306b\u6709\u7528\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-23\">\u30c6\u30af\u30cb\u30c3\u30af2\uff1acase\u6587\u3067\u578b\u306e\u53b3\u5bc6\u6bd4\u8f03\u3092\u884c\u3046\u65b9\u6cd5<\/h3>\n\n\n\n<p>PHP\u306eswitch\u6587\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u300c==\u300d\uff08\u7de9\u3044\u6bd4\u8f03\uff09\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u578b\u5909\u63db\u304c\u884c\u308f\u308c\u308b\u305f\u3081\u3001\u4f8b\u3048\u3070\u6587\u5b57\u5217\u306e\u201d1\u2033\u3068\u6570\u5024\u306e1\u306f\u7b49\u3057\u3044\u3068\u5224\u65ad\u3055\u308c\u307e\u3059\u3002\u3088\u308a\u53b3\u5bc6\u306a\u6bd4\u8f03\u3092\u884c\u3044\u305f\u3044\u5834\u5408\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$value = '1'; \/\/ \u6587\u5b57\u5217\u306e'1'\n\n\/\/ \u901a\u5e38\u306eswitch\u6587\uff08\u7de9\u3044\u6bd4\u8f03\uff09\nswitch ($value) {\n    case 1: \/\/ \u6570\u5024\u306e1\n        echo \"\u6570\u5024\u306e1\u3068\u4e00\u81f4\u3057\u307e\u3057\u305f\"; \/\/ \u3053\u306e\u884c\u304c\u5b9f\u884c\u3055\u308c\u308b\uff08\u578b\u5909\u63db\u304c\u884c\u308f\u308c\u308b\u305f\u3081\uff09\n        break;\n    default:\n        echo \"\u4e00\u81f4\u3057\u307e\u305b\u3093\u3067\u3057\u305f\";\n}\n\n\/\/ \u53b3\u5bc6\u6bd4\u8f03\u3092\u884c\u3046\u305f\u3081\u306e\u5de5\u592b\nswitch (true) {\n    case $value === 1: \/\/ \u53b3\u5bc6\u6bd4\u8f03\uff08\u578b\u3082\u542b\u3081\u3066\u6bd4\u8f03\uff09\n        echo \"\u6570\u5024\u306e1\u3068\u5b8c\u5168\u306b\u4e00\u81f4\";\n        break;\n    case $value === '1': \/\/ \u53b3\u5bc6\u6bd4\u8f03\n        echo \"\u6587\u5b57\u5217\u306e'1'\u3068\u5b8c\u5168\u306b\u4e00\u81f4\"; \/\/ \u3053\u306e\u884c\u304c\u5b9f\u884c\u3055\u308c\u308b\n        break;\n    default:\n        echo \"\u3069\u3061\u3089\u3068\u3082\u4e00\u81f4\u3057\u307e\u305b\u3093\";\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30c6\u30af\u30cb\u30c3\u30af\u306f\u7279\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u3084API\u304b\u3089\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u306a\u3069\u3001\u30c7\u30fc\u30bf\u578b\u304c\u91cd\u8981\u306a\u5834\u5408\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-24\">\u30c6\u30af\u30cb\u30c3\u30af3\uff1a\u6761\u4ef6\u5f0f\u3067\u306e\u5909\u6570\u3068\u5b9a\u6570\u306e\u52b9\u679c\u7684\u306a\u4f7f\u3044\u5206\u3051<\/h3>\n\n\n\n<p>switch\u6587\u306e\u6761\u4ef6\u5f0f\u306b\u306f\u5909\u6570\u3060\u3051\u3067\u306a\u304f\u3001\u95a2\u6570\u3084\u5f0f\u3082\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u67d4\u8edf\u306a\u6761\u4ef6\u5206\u5c90\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30e6\u30fc\u30b6\u30fc\u306e\u5e74\u9f62\u306b\u57fa\u3065\u3044\u305f\u6a29\u9650\u30c1\u30a7\u30c3\u30af\n$user_age = 17;\n\nswitch (true) {\n    case ($user_age &gt;= 20):\n        echo \"\u6210\u4eba\u5411\u3051\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\";\n        break;\n    case ($user_age &gt;= 18):\n        echo \"18\u6b73\u4ee5\u4e0a\u5411\u3051\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\";\n        break;\n    case ($user_age &gt;= 15):\n        echo \"15\u6b73\u4ee5\u4e0a\u5411\u3051\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\"; \/\/ \u3053\u306e\u884c\u304c\u5b9f\u884c\u3055\u308c\u308b\n        break;\n    default:\n        echo \"\u4e00\u822c\u5411\u3051\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u307f\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u3067\u3059\";\n}\n\n\/\/ \u95a2\u6570\u306e\u623b\u308a\u5024\u3092\u4f7f\u7528\u3059\u308b\u4f8b\nfunction getUserPermissionLevel($user_id) {\n    \/\/ \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u30e6\u30fc\u30b6\u30fc\u6a29\u9650\u3092\u53d6\u5f97\u3059\u308b\u51e6\u7406\n    return 'editor'; \/\/ \u4eee\u306e\u623b\u308a\u5024\n}\n\nswitch (getUserPermissionLevel(123)) {\n    case 'admin':\n        echo \"\u7ba1\u7406\u8005\u753b\u9762\u3078\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\";\n        break;\n    case 'editor':\n        echo \"\u30b3\u30f3\u30c6\u30f3\u30c4\u7de8\u96c6\u304c\u3067\u304d\u307e\u3059\"; \/\/ \u3053\u306e\u884c\u304c\u5b9f\u884c\u3055\u308c\u308b\n        break;\n    case 'subscriber':\n        echo \"\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u95b2\u89a7\u3067\u304d\u307e\u3059\";\n        break;\n    default:\n        echo \"\u6a29\u9650\u304c\u3042\u308a\u307e\u305b\u3093\";\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30c6\u30af\u30cb\u30c3\u30af\u306b\u3088\u308a\u3001\u3088\u308a\u8868\u73fe\u529b\u8c4a\u304b\u306a\u6761\u4ef6\u5206\u5c90\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u8907\u96d1\u306a\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u6271\u3046\u5834\u5408\u306b\u6709\u52b9\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-25\">\u30c6\u30af\u30cb\u30c3\u30af4\uff1abreak\u3092\u7701\u7565\u3057\u305f\u300c\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u300d\u306e\u6d3b\u7528\u6cd5<\/h3>\n\n\n\n<p>\u524d\u8ff0\u3057\u305f\u3088\u3046\u306b\u3001break\u3092\u7701\u7565\u3059\u308b\u3068\u300c\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u300d\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u3053\u308c\u3092\u610f\u56f3\u7684\u306b\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u7d2f\u7a4d\u7684\u306a\u51e6\u7406\u3084\u6bb5\u968e\u7684\u306a\u51e6\u7406\u3092\u7c21\u6f54\u306b\u8a18\u8ff0\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=\"\">$access_level = 3; \/\/ 1\uff08\u6700\u4f4e\uff09\u304b\u30895\uff08\u6700\u9ad8\uff09\u307e\u3067\u306e\u30a2\u30af\u30bb\u30b9\u30ec\u30d9\u30eb\n$permissions = [];\n\nswitch ($access_level) {\n    case 5:\n        $permissions[] = '\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u95b2\u89a7';\n        break;\n    default:\n        $permissions[] = '\u6a29\u9650\u306a\u3057';\n}\n\n\/\/ \u7d50\u679c: ['\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u4f5c\u6210\u3068\u7de8\u96c6', '\u30b3\u30e1\u30f3\u30c8\u306e\u6295\u7a3f', '\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u95b2\u89a7']\necho \"\u6a29\u9650\u30ea\u30b9\u30c8: \" . implode(\", \", $permissions);\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u30ec\u30d9\u30eb3\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u30ec\u30d9\u30eb3, 2, 1\u306e\u5168\u3066\u306e\u6a29\u9650\u3092\u6301\u3061\u307e\u3059\u3002\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u968e\u5c64\u7684\u306a\u6a29\u9650\u30b7\u30b9\u30c6\u30e0\u3092\u7c21\u6f54\u306b\u8868\u73fe\u3067\u304d\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u30c6\u30af\u30cb\u30c3\u30af\u306f\u7d2f\u7a4d\u7684\u306a\u51e6\u7406\u3084\u3001\u51e6\u7406\u306e\u512a\u5148\u9806\u4f4d\u304c\u3042\u308b\u5834\u5408\u306b\u7279\u306b\u6709\u52b9\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u304c\u660e\u78ba\u306b\u306a\u308b\u3088\u3046\u306b\u30b3\u30e1\u30f3\u30c8\u3092\u4ed8\u3051\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-26\">\u30c6\u30af\u30cb\u30c3\u30af5\uff1areturn\u6587\u3092\u4f75\u7528\u3057\u305f\u52b9\u7387\u7684\u306aswitch\u69cb\u9020<\/h3>\n\n\n\n<p>\u95a2\u6570\u5185\u3067switch\u6587\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001break\u306e\u4ee3\u308f\u308a\u306breturn\u6587\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u7c21\u6f54\u3067\u30af\u30ea\u30fc\u30f3\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getDiscountRate($membership_type) {\n    switch ($membership_type) {\n        case 'platinum':\n            return 0.20; \/\/ 20%\u5272\u5f15\n        case 'gold':\n            return 0.15; \/\/ 15%\u5272\u5f15\n        case 'silver':\n            return 0.10; \/\/ 10%\u5272\u5f15\n        case 'bronze':\n            return 0.05; \/\/ 5%\u5272\u5f15\n        default:\n            return 0.00; \/\/ \u5272\u5f15\u306a\u3057\n    }\n    \n    \/\/ \u3053\u306e\u884c\u306f\u6c7a\u3057\u3066\u5b9f\u884c\u3055\u308c\u306a\u3044\n    \/\/ return\u5f8c\u306b\u51e6\u7406\u304c\u95a2\u6570\u304b\u3089\u629c\u3051\u308b\u305f\u3081\u3001break\u306f\u4e0d\u8981\n}\n\n$discount = getDiscountRate('gold');\necho \"\u5272\u5f15\u7387: \" . ($discount * 100) . \"%\"; \/\/ \u7d50\u679c: \u5272\u5f15\u7387: 15%'\u8a2d\u5b9a\u306e\u5909\u66f4';\n        \/\/ break\u306a\u3057 \u2192 \u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\n    case 4:\n        $permissions[] = '\u30e6\u30fc\u30b6\u30fc\u7ba1\u7406';\n        \/\/ break\u306a\u3057 \u2192 \u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\n    case 3:\n        $permissions[] = '\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u4f5c\u6210\u3068\u7de8\u96c6';\n        \/\/ break\u306a\u3057 \u2192 \u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\n    case 2:\n        $permissions[] = '\u30b3\u30e1\u30f3\u30c8\u306e\u6295\u7a3f';\n        \/\/ break\u306a\u3057 \u2192 \u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\n    case 1:\n        $permissions[] =\n<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-27\">\u3088\u304f\u3042\u308bswitch\u6587\u306e\u30d0\u30b0\u3068\u5bfe\u51e6\u6cd5<\/h2>\n\n\n\n<p>switch\u6587\u306f\u5f37\u529b\u306a\u5236\u5fa1\u69cb\u9020\u3067\u3059\u304c\u3001\u3044\u304f\u3064\u304b\u306e\u843d\u3068\u3057\u7a74\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001PHP\u306eswitch\u6587\u3067\u3088\u304f\u898b\u3089\u308c\u308b\u30d0\u30b0\u3068\u305d\u306e\u5bfe\u51e6\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u554f\u984c\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-28\">break\u6587\u306e\u5fd8\u308c\u306b\u3088\u308b\u610f\u56f3\u3057\u306a\u3044\u52d5\u4f5c<\/h3>\n\n\n\n<p>\u6700\u3082\u4e00\u822c\u7684\u306aswitch\u6587\u306e\u30d0\u30b0\u306f\u3001break\u6587\u306e\u5fd8\u308c\u306b\u3088\u308b\u3082\u306e\u3067\u3059\u3002\u524d\u8ff0\u3057\u305f\u3088\u3046\u306b\u3001break\u6587\u304c\u306a\u3044\u3068\u51e6\u7406\u304c\u6b21\u306ecase\u6587\u306b\u300c\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u300d\u3057\u307e\u3059\u3002\u3053\u308c\u304c\u610f\u56f3\u7684\u3067\u306a\u3044\u5834\u5408\u3001\u4e88\u671f\u305b\u306c\u52d5\u4f5c\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function processOrder($status) {\n    $message = '';\n    switch ($status) {\n        case 'pending':\n            $message = '\u6ce8\u6587\u306f\u51e6\u7406\u5f85\u3061\u3067\u3059\u3002';\n            \/\/ break\u6587\u304c\u6b20\u3051\u3066\u3044\u308b\uff01\n        case 'processing':\n            $message = '\u6ce8\u6587\u3092\u51e6\u7406\u4e2d\u3067\u3059\u3002';\n            break;\n        case 'shipped':\n            $message = '\u6ce8\u6587\u306f\u767a\u9001\u6e08\u307f\u3067\u3059\u3002';\n            break;\n        default:\n            $message = '\u4e0d\u660e\u306a\u6ce8\u6587\u72b6\u614b\u3067\u3059\u3002';\n    }\n    return $message;\n}\n\necho processOrder('pending'); \/\/ \u671f\u5f85: '\u6ce8\u6587\u306f\u51e6\u7406\u5f85\u3061\u3067\u3059\u3002'\n                             \/\/ \u5b9f\u969b: '\u6ce8\u6587\u3092\u51e6\u7406\u4e2d\u3067\u3059\u3002'\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code>'pending'<\/code>\u306e\u5834\u5408\u3001\u6700\u521d\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u304c\u3001break\u6587\u304c\u306a\u3044\u305f\u3081\u51e6\u7406\u304c\u7d9a\u884c\u3055\u308c\u3001<code>'processing'<\/code>\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u4e0a\u66f8\u304d\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u5bfe\u51e6\u6cd5:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5404case\u6587\u306e\u6700\u5f8c\u306b\u5fc5\u305abreak\u6587\u3092\u8a18\u8ff0\u3059\u308b\u7fd2\u6163\u3092\u3064\u3051\u308b<\/li>\n\n\n\n<li>\u610f\u56f3\u7684\u306b\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u30b3\u30e1\u30f3\u30c8\u3067\u660e\u793a\u3059\u308b<\/li>\n\n\n\n<li>PHP\u306e\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\uff08PHPStan, Psalm\u7b49\uff09\u3092\u4f7f\u7528\u3057\u3066\u691c\u51fa\u3059\u308b<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3067\u7279\u306bbreak\u6587\u306e\u6709\u7121\u3092\u78ba\u8a8d\u3059\u308b<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-29\">\u6587\u5b57\u5217\u3068\u6570\u5024\u306e\u6bd4\u8f03\u3067\u8d77\u3053\u308b\u578b\u5909\u63db\u306e\u554f\u984c<\/h3>\n\n\n\n<p>PHP\u306eswitch\u6587\u3067\u306f\u300c==\u300d\u6f14\u7b97\u5b50\uff08\u7de9\u3044\u6bd4\u8f03\uff09\u304c\u4f7f\u7528\u3055\u308c\u308b\u305f\u3081\u3001\u578b\u5909\u63db\u304c\u884c\u308f\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4e88\u671f\u305b\u306c\u30de\u30c3\u30c1\u30f3\u30b0\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\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=\"\">$value = '0'; \/\/ \u6587\u5b57\u5217\u306e\u30bc\u30ed\n\nswitch ($value) {\n    case 0: \/\/ \u6570\u5024\u306e\u30bc\u30ed\n        echo \"\u6570\u5024\u306e0\u3068\u4e00\u81f4\u3057\u307e\u3057\u305f\"; \/\/ \u3053\u306e\u884c\u304c\u5b9f\u884c\u3055\u308c\u308b\n        break;\n    case '0': \/\/ \u6587\u5b57\u5217\u306e\u30bc\u30ed\n        echo \"\u6587\u5b57\u5217\u306e'0'\u3068\u4e00\u81f4\u3057\u307e\u3057\u305f\"; \/\/ \u3053\u306e\u884c\u306f\u5b9f\u884c\u3055\u308c\u306a\u3044\n        break;\n    default:\n        echo \"\u4e00\u81f4\u3059\u308b\u3082\u306e\u304c\u3042\u308a\u307e\u305b\u3093\";\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u6587\u5b57\u5217\u306e<code>'0'<\/code>\u304c\u6570\u5024\u306e<code>0<\/code>\u3068\u7b49\u3057\u3044\u3068\u5224\u65ad\u3055\u308c\u3001\u6700\u521d\u306ecase\u6587\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u30022\u756a\u76ee\u306ecase\u6587\u306b\u306f\u5230\u9054\u3057\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p><strong>\u5bfe\u51e6\u6cd5:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30c6\u30af\u30cb\u30c3\u30af2\u3067\u7d39\u4ecb\u3057\u305f\u53b3\u5bc6\u6bd4\u8f03\u306e\u65b9\u6cd5\u3092\u4f7f\u7528\u3059\u308b<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u306e\u578b\u3092\u4e8b\u524d\u306b\u5909\u63db\u3057\u3066\u7d71\u4e00\u3059\u308b\uff08\u4f8b\uff1a<code>(int)$value<\/code>\uff09<\/li>\n\n\n\n<li>PHP\u306e\u578b\u5ba3\u8a00\u6a5f\u80fd\uff08PHP 7\u4ee5\u964d\uff09\u3092\u6d3b\u7528\u3057\u3066\u3001\u95a2\u6570\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u578b\u3092\u660e\u793a\u3059\u308b<\/li>\n\n\n\n<li>\u30b3\u30e1\u30f3\u30c8\u3067\u671f\u5f85\u3055\u308c\u308b\u578b\u3092\u660e\u793a\u3059\u308b<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-30\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u4f4e\u4e0b\u3059\u308bswitch\u6587\u306e\u66f8\u304d\u65b9\u3068\u5bfe\u7b56<\/h3>\n\n\n\n<p>\u4e0d\u9069\u5207\u306b\u66f8\u304b\u308c\u305fswitch\u6587\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u60aa\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u4ee5\u4e0b\u306e\u30b1\u30fc\u30b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong>1. \u975e\u52b9\u7387\u306a\u30b1\u30fc\u30b9\u9806\u5e8f:<\/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=\"\">\/\/ \u975e\u52b9\u7387\u306a\u4f8b\uff1a\u6700\u3082\u983b\u7e41\u306b\u4e00\u81f4\u3059\u308b\u30b1\u30fc\u30b9\u304c\u6700\u5f8c\u306b\u3042\u308b\nfunction getColorCode($color_name) {\n    switch (strtolower($color_name)) {\n        case 'yellow':\n            return '#FFFF00';\n        case 'green': \n            return '#00FF00';\n        case 'blue':\n            return '#0000FF';\n        case 'black':\n            return '#000000';\n        case 'red': \/\/ \u6700\u3082\u983b\u7e41\u306b\u4f7f\u7528\u3055\u308c\u308b\u8272\u304c\u6700\u5f8c\n            return '#FF0000';\n        default:\n            return null;\n    }\n}\n<\/pre>\n\n\n\n<p><strong>\u6700\u9069\u5316\u3057\u305f\u4f8b:<\/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=\"\">\/\/ \u6700\u9069\u5316\uff1a\u983b\u5ea6\u306e\u9ad8\u3044\u30b1\u30fc\u30b9\u3092\u5148\u306b\u914d\u7f6e\nfunction getColorCode($color_name) {\n    switch (strtolower($color_name)) {\n        case 'red': \/\/ \u6700\u3082\u983b\u7e41\u306b\u4f7f\u7528\u3055\u308c\u308b\u8272\u3092\u6700\u521d\u306b\n            return '#FF0000';\n        case 'blue':\n            return '#0000FF';\n        case 'green': \n            return '#00FF00';\n        case 'yellow':\n            return '#FFFF00';\n        case 'black':\n            return '#000000';\n        default:\n            return null;\n    }\n}\n<\/pre>\n\n\n\n<p><strong>2. switch\u6587\u5185\u3067\u306e\u4e0d\u8981\u306a\u8a08\u7b97:<\/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=\"\">\/\/ \u975e\u52b9\u7387\uff1a\u5404case\u3067\u95a2\u6570\u304c\u547c\u3073\u51fa\u3055\u308c\u308b\n$user_type = getUserType(); \/\/ \u30e6\u30fc\u30b6\u30fc\u30bf\u30a4\u30d7\u3092\u53d6\u5f97\n\nswitch ($user_type) {\n    case calculateAccessLevel('admin'): \/\/ \u95a2\u6570\u547c\u3073\u51fa\u3057\n        $access = 'full';\n        break;\n    case calculateAccessLevel('manager'): \/\/ \u95a2\u6570\u547c\u3073\u51fa\u3057\n        $access = 'high';\n        break;\n    case calculateAccessLevel('user'): \/\/ \u95a2\u6570\u547c\u3073\u51fa\u3057\n        $access = 'basic';\n        break;\n}\n<\/pre>\n\n\n\n<p><strong>\u6700\u9069\u5316\u3057\u305f\u4f8b:<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6700\u9069\u5316\uff1a\u4e8b\u524d\u306b\u8a08\u7b97\u3092\u884c\u3044\u3001\u7d50\u679c\u3092\u4fdd\u5b58\n$user_type = getUserType();\n$admin_level = calculateAccessLevel('admin');\n$manager_level = calculateAccessLevel('manager');\n$user_level = calculateAccessLevel('user');\n\nswitch ($user_type) {\n    case $admin_level:\n        $access = 'full';\n        break;\n    case $manager_level:\n        $access = 'high';\n        break;\n    case $user_level:\n        $access = 'basic';\n        break;\n}\n<\/pre>\n\n\n\n<p><strong>\u5bfe\u7b56:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6700\u3082\u983b\u7e41\u306b\u4e00\u81f4\u3059\u308b\u30b1\u30fc\u30b9\u3092\u5148\u306b\u914d\u7f6e\u3059\u308b<\/li>\n\n\n\n<li>case\u6587\u306e\u6761\u4ef6\u306f\u5358\u7d14\u306a\u5024\u306b\u3057\u3001\u8907\u96d1\u306a\u8a08\u7b97\u306f\u4e8b\u524d\u306b\u884c\u3046<\/li>\n\n\n\n<li>\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u6271\u3046\u5834\u5408\u306f\u3001\u914d\u5217\u3084\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u30c6\u30fc\u30d6\u30eb\u306e\u4f7f\u7528\u3092\u691c\u8a0e\u3059\u308b<\/li>\n\n\n\n<li>\u30c7\u30d0\u30c3\u30b0\u7528\u306e\u30d7\u30ed\u30d5\u30a1\u30a4\u30e9\u3092\u4f7f\u7528\u3057\u3066\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3092\u7279\u5b9a\u3059\u308b<\/li>\n<\/ol>\n\n\n\n<p>switch\u6587\u306e\u30d0\u30b0\u306f\u3001\u9069\u5207\u306a\u77e5\u8b58\u3068\u6ce8\u610f\u6df1\u3044\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306b\u3088\u3063\u3066\u56de\u907f\u3067\u304d\u307e\u3059\u3002\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u306e\u969b\u306b\u306f\u7279\u306bbreak\u6587\u306e\u6709\u7121\u3084\u578b\u5909\u63db\u306e\u554f\u984c\u306b\u6ce8\u76ee\u3057\u3001\u5b9a\u671f\u7684\u306b\u30b3\u30fc\u30c9\u3092\u898b\u76f4\u3059\u3053\u3068\u3067\u3001\u5805\u7262\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-31\">\u5b9f\u7528\u7684\u306aswitch\u6587\u306e\u5fdc\u7528\u4f8b<\/h2>\n\n\n\n<p>\u3053\u308c\u307e\u3067switch\u6587\u306e\u57fa\u672c\u3068\u5fdc\u7528\u30c6\u30af\u30cb\u30c3\u30af\u3092\u5b66\u3093\u3067\u304d\u307e\u3057\u305f\u3002\u3053\u3053\u3067\u306f\u3001\u5b9f\u969b\u306ePHP\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306b\u304a\u3051\u308b\u5177\u4f53\u7684\u306a\u5fdc\u7528\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\u3067switch\u6587\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-32\">Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u51e6\u7406<\/h3>\n\n\n\n<p>\u5c0f\u898f\u6a21\u306aWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001URL\u30d1\u30b9\u306b\u57fa\u3065\u3044\u3066\u9069\u5207\u306a\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3084\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u547c\u3073\u51fa\u3059\u30b7\u30f3\u30d7\u30eb\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u3092switch\u6587\u3067\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=\"\">\/\/ \u30b7\u30f3\u30d7\u30eb\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u51e6\u7406\n$request_uri = $_SERVER['REQUEST_URI'];\n$path = parse_url($request_uri, PHP_URL_PATH);\n$path = trim($path, '\/');\n\n\/\/ \u30d1\u30b9\u304c\u7a7a\u306e\u5834\u5408\u306f\u30db\u30fc\u30e0\u30da\u30fc\u30b8\u3068\u307f\u306a\u3059\nif (empty($path)) {\n    $path = 'home';\n}\n\nswitch ($path) {\n    case 'home':\n        require_once 'controllers\/HomeController.php';\n        $controller = new HomeController();\n        $controller-&gt;index();\n        break;\n        \n    case 'about':\n        require_once 'controllers\/AboutController.php';\n        $controller = new AboutController();\n        $controller-&gt;index();\n        break;\n        \n    case 'products':\n        require_once 'controllers\/ProductController.php';\n        $controller = new ProductController();\n        $controller-&gt;list();\n        break;\n        \n    case 'contact':\n        require_once 'controllers\/ContactController.php';\n        $controller = new ContactController();\n        $controller-&gt;show();\n        break;\n        \n    default:\n        \/\/ 404 Not Found\u30da\u30fc\u30b8\u3092\u8868\u793a\n        header(\"HTTP\/1.0 404 Not Found\");\n        require_once 'views\/404.php';\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001URL\u30d1\u30b9\u306b\u57fa\u3065\u3044\u3066\u9069\u5207\u306a\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3092\u30ed\u30fc\u30c9\u3057\u3001\u7279\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u3044\u307e\u3059\u3002switch\u6587\u306e\u308f\u304b\u308a\u3084\u3059\u3055\u306b\u3088\u308a\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u5168\u4f53\u50cf\u304c\u4e00\u76ee\u3067\u628a\u63e1\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3088\u308a\u8907\u96d1\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u5c02\u7528\u306e\u30eb\u30fc\u30bf\u30fc\u30e9\u30a4\u30d6\u30e9\u30ea\uff08\u4f8b\uff1aFastRoute, Slim Framework\u306a\u3069\uff09\u306e\u4f7f\u7528\u3092\u691c\u8a0e\u3059\u3079\u304d\u3067\u3059\u304c\u3001\u5c0f\u898f\u6a21\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3053\u306e\u3088\u3046\u306a\u30b7\u30f3\u30d7\u30eb\u306a\u5b9f\u88c5\u3067\u5341\u5206\u306a\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-33\">\u30d5\u30a9\u30fc\u30e0\u5165\u529b\u5024\u306e\u691c\u8a3c\u3068\u51e6\u7406\u5206\u5c90<\/h3>\n\n\n\n<p>Web\u30d5\u30a9\u30fc\u30e0\u306e\u51e6\u7406\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u9078\u629e\u306b\u57fa\u3065\u3044\u3066\u7570\u306a\u308b\u691c\u8a3c\u3084\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u9069\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002switch\u6587\u306f\u3053\u306e\u3088\u3046\u306a\u72b6\u6cc1\u3067\u975e\u5e38\u306b\u5f79\u7acb\u3061\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=\"\">\/\/ \u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u51e6\u7406\nif ($_SERVER['REQUEST_METHOD'] === 'POST') {\n    $payment_method = $_POST['payment_method'] ?? '';\n    $errors = [];\n    \n    \/\/ \u652f\u6255\u3044\u65b9\u6cd5\u3054\u3068\u306b\u7570\u306a\u308b\u691c\u8a3c\u3092\u9069\u7528\n    switch ($payment_method) {\n        case 'credit_card':\n            \/\/ \u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9\u60c5\u5831\u306e\u691c\u8a3c\n            if (empty($_POST['card_number'])) {\n                $errors[] = '\u30ab\u30fc\u30c9\u756a\u53f7\u306f\u5fc5\u9808\u3067\u3059\u3002';\n            } elseif (!preg_match('\/^\\d{16}$\/', $_POST['card_number'])) {\n                $errors[] = '\u30ab\u30fc\u30c9\u756a\u53f7\u306f16\u6841\u306e\u6570\u5b57\u3067\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002';\n            }\n            \n            if (empty($_POST['expiry_date'])) {\n                $errors[] = '\u6709\u52b9\u671f\u9650\u306f\u5fc5\u9808\u3067\u3059\u3002';\n            }\n            \n            if (empty($_POST['cvv'])) {\n                $errors[] = '\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b3\u30fc\u30c9\u306f\u5fc5\u9808\u3067\u3059\u3002';\n            }\n            break;\n            \n        case 'bank_transfer':\n            \/\/ \u9280\u884c\u632f\u8fbc\u60c5\u5831\u306e\u691c\u8a3c\n            if (empty($_POST['bank_name'])) {\n                $errors[] = '\u9280\u884c\u540d\u306f\u5fc5\u9808\u3067\u3059\u3002';\n            }\n            \n            if (empty($_POST['account_number'])) {\n                $errors[] = '\u53e3\u5ea7\u756a\u53f7\u306f\u5fc5\u9808\u3067\u3059\u3002';\n            }\n            break;\n            \n        case 'paypal':\n            \/\/ PayPal\u60c5\u5831\u306e\u691c\u8a3c\n            if (empty($_POST['paypal_email'])) {\n                $errors[] = 'PayPal\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306f\u5fc5\u9808\u3067\u3059\u3002';\n            } elseif (!filter_var($_POST['paypal_email'], FILTER_VALIDATE_EMAIL)) {\n                $errors[] = '\u6709\u52b9\u306a\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002';\n            }\n            break;\n            \n        default:\n            $errors[] = '\u6709\u52b9\u306a\u652f\u6255\u3044\u65b9\u6cd5\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002';\n    }\n    \n    \/\/ \u30a8\u30e9\u30fc\u304c\u306a\u3051\u308c\u3070\u51e6\u7406\u3092\u7d9a\u884c\n    if (empty($errors)) {\n        \/\/ \u652f\u6255\u3044\u51e6\u7406\u3092\u5b9f\u884c...\n        echo '\u652f\u6255\u3044\u51e6\u7406\u304c\u5b8c\u4e86\u3057\u307e\u3057\u305f\u3002';\n    } else {\n        \/\/ \u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\n        foreach ($errors as $error) {\n            echo '&lt;p class=\"error\"&gt;' . htmlspecialchars($error) . '&lt;\/p&gt;';\n        }\n    }\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u9078\u629e\u3055\u308c\u305f\u652f\u6255\u3044\u65b9\u6cd5\u306b\u5fdc\u3058\u3066\u3001\u7570\u306a\u308b\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30eb\u30fc\u30eb\u3092\u9069\u7528\u3057\u3066\u3044\u307e\u3059\u3002switch\u6587\u306e\u660e\u78ba\u306a\u69cb\u9020\u306b\u3088\u308a\u3001\u5404\u652f\u6255\u3044\u65b9\u6cd5\u306e\u51e6\u7406\u30ed\u30b8\u30c3\u30af\u304c\u6574\u7406\u3055\u308c\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-34\">API\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u57fa\u3065\u3044\u305f\u51e6\u7406\u306e\u5207\u308a\u66ff\u3048<\/h3>\n\n\n\n<p>\u73fe\u4ee3\u306eWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5916\u90e8API\u3068\u306e\u9023\u643a\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002API\u304b\u3089\u8fd4\u3055\u308c\u308b\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3084\u30ec\u30b9\u30dd\u30f3\u30b9\u30bf\u30a4\u30d7\u306b\u57fa\u3065\u3044\u3066\u3001\u9069\u5207\u306a\u51e6\u7406\u3092\u884c\u3046\u5fc5\u8981\u304c\u3042\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=\"\">\/**\n * \u5916\u90e8API\u304b\u3089\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u51e6\u7406\u3059\u308b\u95a2\u6570\n * @param array $response API\u30ec\u30b9\u30dd\u30f3\u30b9\n * @return array \u51e6\u7406\u7d50\u679c\n *\/\nfunction handleApiResponse($response) {\n    \/\/ API\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306b\u57fa\u3065\u3044\u3066\u51e6\u7406\u3092\u5206\u5c90\n    switch ($response['status'] ?? 'unknown') {\n        case 'success':\n            \/\/ \u6210\u529f\u6642\u306e\u51e6\u7406\n            logApiSuccess($response);\n            return [\n                'success' =&gt; true,\n                'data' =&gt; $response['data'],\n                'message' =&gt; '\u51e6\u7406\u304c\u5b8c\u4e86\u3057\u307e\u3057\u305f'\n            ];\n            \n        case 'error':\n            \/\/ \u30a8\u30e9\u30fc\u6642\u306e\u51e6\u7406\n            logApiError($response);\n            return [\n                'success' =&gt; false,\n                'error_code' =&gt; $response['error_code'] ?? 'unknown',\n                'message' =&gt; $response['message'] ?? '\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3057\u305f'\n            ];\n            \n        case 'rate_limited':\n            \/\/ API\u30ec\u30fc\u30c8\u5236\u9650\u6642\u306e\u51e6\u7406\n            sleep(2); \/\/ 2\u79d2\u5f85\u6a5f\n            \/\/ API\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u518d\u8a66\u884c\u3059\u308b\u30ed\u30b8\u30c3\u30af\n            return retryApiRequest($response['retry_after'] ?? 5);\n            \n        case 'maintenance':\n            \/\/ API\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6642\u306e\u51e6\u7406\n            sendAdminNotification('API is in maintenance mode');\n            return [\n                'success' =&gt; false,\n                'message' =&gt; '\u30b5\u30fc\u30d3\u30b9\u306f\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u4e2d\u3067\u3059\u3002\u3057\u3070\u3089\u304f\u304a\u5f85\u3061\u304f\u3060\u3055\u3044\u3002'\n            ];\n            \n        default:\n            \/\/ \u672a\u77e5\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u306e\u51e6\u7406\n            logUnknownStatus($response);\n            return [\n                'success' =&gt; false,\n                'message' =&gt; '\u4e88\u671f\u3057\u306a\u3044\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u8fd4\u3055\u308c\u307e\u3057\u305f'\n            ];\n    }\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n$api_response = callExternalApi('get_user_data', ['user_id' =&gt; 123]);\n$result = handleApiResponse($api_response);\n\nif ($result['success']) {\n    \/\/ \u6210\u529f\u6642\u306e\u51e6\u7406\n    displayUserData($result['data']);\n} else {\n    \/\/ \u30a8\u30e9\u30fc\u6642\u306e\u51e6\u7406\n    displayErrorMessage($result['message']);\n}\n<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001API\u304b\u3089\u8fd4\u3055\u308c\u308b\u30b9\u30c6\u30fc\u30bf\u30b9\u306b\u5fdc\u3058\u3066\u3001\u7570\u306a\u308b\u51e6\u7406\u30ed\u30b8\u30c3\u30af\u3092\u9069\u7528\u3057\u3066\u3044\u307e\u3059\u3002switch\u6587\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5404\u30b9\u30c6\u30fc\u30bf\u30b9\u306e\u51e6\u7406\u304c\u660e\u78ba\u306b\u5206\u96e2\u3055\u308c\u3001\u65b0\u3057\u3044\u30b9\u30c6\u30fc\u30bf\u30b9\u3078\u306e\u5bfe\u5fdc\u3082\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u7528\u4f8b\u306f\u3001switch\u6587\u304c\u5358\u306a\u308b\u6761\u4ef6\u5206\u5c90\u4ee5\u4e0a\u306e\u4fa1\u5024\u3092\u6301\u3064\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3001\u4fdd\u5b88\u6027\u3001\u62e1\u5f35\u6027\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001PHP 8.0\u4ee5\u964d\u306b\u5c0e\u5165\u3055\u308c\u305f\u65b0\u6a5f\u80fd\u3092\u6d3b\u7528\u3057\u305f\u3001\u3088\u308a\u73fe\u4ee3\u7684\u306aswitch\u6587\u306e\u4ee3\u66ff\u624b\u6bb5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-35\">PHP 8.0\u4ee5\u964d\u306eswitch\u6587\u306e\u65b0\u6a5f\u80fd\u3068\u4ee3\u66ff\u624b\u6bb5<\/h2>\n\n\n\n<p>PHP 8.0\u4ee5\u964d\u3067\u306f\u3001\u6761\u4ef6\u5206\u5c90\u306e\u8a18\u8ff0\u65b9\u6cd5\u304c\u5927\u304d\u304f\u9032\u5316\u3057\u307e\u3057\u305f\u3002\u7279\u306b\u3001\u65b0\u3057\u304f\u5c0e\u5165\u3055\u308c\u305f<code>match<\/code>\u5f0f\u306fswitch\u6587\u306e\u5f37\u529b\u306a\u4ee3\u66ff\u624b\u6bb5\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u65b0\u6a5f\u80fd\u3068\u3001\u30e2\u30c0\u30f3PHP\u3067\u306e\u6761\u4ef6\u5206\u5c90\u306e\u6700\u9069\u306a\u66f8\u304d\u65b9\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-36\">PHP 8.0\u306ematch\u5f0f\uff1aswitch\u6587\u306e\u9032\u5316\u5f62<\/h3>\n\n\n\n<p>PHP 8.0\u3067\u5c0e\u5165\u3055\u308c\u305f<code>match<\/code>\u5f0f\u306f\u3001\u4f1d\u7d71\u7684\u306aswitch\u6587\u306e\u6b20\u70b9\u3092\u89e3\u6d88\u3057\u3001\u3088\u308a\u7c21\u6f54\u3067\u5b89\u5168\u306a\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u4e3b\u306a\u7279\u5fb4\u306f\u4ee5\u4e0b\u306e\u901a\u308a\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=\"\">\/\/ \u5f93\u6765\u306eswitch\u6587\n$status_code = 404;\n$message = '';\n\nswitch ($status_code) {\n    case 200:\n    case 201:\n        $message = '\u6210\u529f';\n        break;\n    case 404:\n        $message = '\u30da\u30fc\u30b8\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093';\n        break;\n    case 500:\n        $message = '\u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc';\n        break;\n    default:\n        $message = '\u4e0d\u660e\u306a\u30a8\u30e9\u30fc';\n}\n\n\/\/ PHP 8.0\u306ematch\u5f0f\n$status_code = 404;\n$message = match ($status_code) {\n    200, 201 =&gt; '\u6210\u529f',\n    404 =&gt; '\u30da\u30fc\u30b8\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093',\n    500 =&gt; '\u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc',\n    default =&gt; '\u4e0d\u660e\u306a\u30a8\u30e9\u30fc',\n};\n\necho $message; \/\/ \u7d50\u679c: '\u30da\u30fc\u30b8\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093'\n<\/pre>\n\n\n\n<p><strong>match\u5f0f\u306e\u30e1\u30ea\u30c3\u30c8:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7c21\u6f54\u3055<\/strong>: \u30a2\u30ed\u30fc\u69cb\u6587\uff08<code>=&gt;<\/code>\uff09\u306b\u3088\u308b\u77ed\u3044\u8a18\u8ff0\u3001\u8907\u6570\u306e\u5024\u3092\u30ab\u30f3\u30de\u3067\u533a\u5207\u308a\u53ef\u80fd<\/li>\n\n\n\n<li><strong>\u5f0f\u3068\u3057\u3066\u6a5f\u80fd<\/strong>: \u7d50\u679c\u3092\u76f4\u63a5\u5909\u6570\u306b\u4ee3\u5165\u53ef\u80fd<\/li>\n\n\n\n<li><strong>\u53b3\u5bc6\u306a\u6bd4\u8f03<\/strong>: <code>===<\/code>\uff08\u53b3\u5bc6\u6bd4\u8f03\uff09\u6f14\u7b97\u5b50\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u578b\u306e\u9055\u3044\u306b\u3088\u308b\u30d0\u30b0\u3092\u9632\u6b62<\/li>\n\n\n\n<li><strong>\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u306a\u3057<\/strong>: break\u306e\u5fd8\u308c\u306b\u3088\u308b\u30d0\u30b0\u304c\u767a\u751f\u3057\u306a\u3044<\/li>\n\n\n\n<li><strong>\u7db2\u7f85\u6027\u30c1\u30a7\u30c3\u30af<\/strong>: default\u304c\u306a\u304f\u3001\u6761\u4ef6\u306b\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306f<code>UnhandledMatchError<\/code>\u4f8b\u5916\u3092\u30b9\u30ed\u30fc\u3059\u308b<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u4f8b\u5916\u304c\u767a\u751f\u3059\u308b\u30b1\u30fc\u30b9\n$value = 3;\n$result = match ($value) {\n    1 =&gt; 'One',\n    2 =&gt; 'Two',\n    \/\/ default\u304c\u306a\u304f\u30013\u306b\u4e00\u81f4\u3059\u308bcase\u3082\u306a\u3044\u305f\u3081\u4f8b\u5916\u304c\u767a\u751f\n};\n\/\/ \u7d50\u679c: Fatal error: Uncaught UnhandledMatchError: Unhandled match value: 3\n<\/pre>\n\n\n\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u6761\u4ef6\u306e\u6f0f\u308c\u3092\u65e9\u671f\u306b\u767a\u898b\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-37\">\u5217\u6319\u578b\uff08Enum\uff09\u3068switch\u6587\u306e\u7d44\u307f\u5408\u308f\u305b<\/h3>\n\n\n\n<p>PHP 8.1\u3067\u306f\u5217\u6319\u578b\uff08Enum\uff09\u304c\u5c0e\u5165\u3055\u308c\u3001\u6761\u4ef6\u5206\u5c90\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u5f37\u529b\u306a\u578b\u5b89\u5168\u6027\u3092\u5b9f\u73fe\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\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=\"\">\/\/ PHP 8.1\u4ee5\u964d\u3067\u306e\u5217\u6319\u578b\u306e\u5b9a\u7fa9\nenum PaymentStatus {\n    case Pending;\n    case Processing;\n    case Completed;\n    case Failed;\n}\n\n\/\/ \u95a2\u6570\u3067Enum\u578b\u3092\u53d7\u3051\u53d6\u308a\u3001switch\u6587\u3067\u51e6\u7406\nfunction handlePayment(PaymentStatus $status) {\n    switch ($status) {\n        case PaymentStatus::Pending:\n            return '\u652f\u6255\u3044\u306f\u4fdd\u7559\u4e2d\u3067\u3059';\n        case PaymentStatus::Processing:\n            return '\u652f\u6255\u3044\u3092\u51e6\u7406\u4e2d\u3067\u3059';\n        case PaymentStatus::Completed:\n            return '\u652f\u6255\u3044\u306f\u5b8c\u4e86\u3057\u307e\u3057\u305f';\n        case PaymentStatus::Failed:\n            return '\u652f\u6255\u3044\u306b\u5931\u6557\u3057\u307e\u3057\u305f';\n    }\n}\n\n\/\/ \u95a2\u6570\u547c\u3073\u51fa\u3057\necho handlePayment(PaymentStatus::Completed); \/\/ \u7d50\u679c: '\u652f\u6255\u3044\u306f\u5b8c\u4e86\u3057\u307e\u3057\u305f'\n<\/pre>\n\n\n\n<p><strong>match\u5f0f\u3068Enum\u306e\u7d44\u307f\u5408\u308f\u305b:<\/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=\"\">function getPaymentMessage(PaymentStatus $status) {\n    return match ($status) {\n        PaymentStatus::Pending =&gt; '\u652f\u6255\u3044\u306f\u4fdd\u7559\u4e2d\u3067\u3059',\n        PaymentStatus::Processing =&gt; '\u652f\u6255\u3044\u3092\u51e6\u7406\u4e2d\u3067\u3059',\n        PaymentStatus::Completed =&gt; '\u652f\u6255\u3044\u306f\u5b8c\u4e86\u3057\u307e\u3057\u305f',\n        PaymentStatus::Failed =&gt; '\u652f\u6255\u3044\u306b\u5931\u6557\u3057\u307e\u3057\u305f',\n    };\n}\n<\/pre>\n\n\n\n<p>Enum\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u578b\u306e\u5b89\u5168\u6027\u304c\u5411\u4e0a\u3057\u3001\u4e0d\u6b63\u306a\u5024\u306e\u6df7\u5165\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002IDE\uff08\u7d71\u5408\u958b\u767a\u74b0\u5883\uff09\u306e\u30b3\u30fc\u30c9\u88dc\u5b8c\u6a5f\u80fd\u3082\u6d3b\u7528\u3067\u304d\u308b\u305f\u3081\u3001\u958b\u767a\u52b9\u7387\u3082\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-38\">\u30e2\u30c0\u30f3PHP\u3067\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u306e\u6d3b\u7528\u6cd5<\/h3>\n\n\n\n<p>PHP 8.0\u4ee5\u964d\u3067\u306f\u3001match\u3068\u305d\u306e\u4ed6\u306e\u65b0\u6a5f\u80fd\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u8868\u73fe\u529b\u8c4a\u304b\u306a\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p><strong>\u6761\u4ef6\u5f0f\u3092\u4f7f\u3063\u305f\u30de\u30c3\u30c1\u30f3\u30b0:<\/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=\"\">$age = 25;\n\n$category = match (true) {\n    $age &lt; 13 =&gt; '\u5b50\u4f9b',\n    $age &lt; 20 =&gt; '10\u4ee3',\n    $age &lt; 30 =&gt; '20\u4ee3',\n    $age &lt; 40 =&gt; '30\u4ee3',\n    default =&gt; '40\u6b73\u4ee5\u4e0a',\n};\n\necho $category; \/\/ \u7d50\u679c: '20\u4ee3'\n<\/pre>\n\n\n\n<p><strong>\u8907\u5408\u6761\u4ef6\u3068\u95a2\u6570\u306e\u7d44\u307f\u5408\u308f\u305b:<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$data = ['type' =&gt; 'user', 'id' =&gt; 123];\n\n$result = match ($data['type']) {\n    'user' =&gt; fetchUser($data['id']),\n    'product' =&gt; fetchProduct($data['id']),\n    'order' =&gt; function() use ($data) { \/\/ \u30af\u30ed\u30fc\u30b8\u30e3\u3092\u4f7f\u7528\u3057\u305f\u3088\u308a\u8907\u96d1\u306a\u51e6\u7406\n        $order = fetchOrder($data['id']);\n        updateOrderStatus($order);\n        return $order;\n    },\n    default =&gt; throw new InvalidArgumentException(\"\u4e0d\u660e\u306a\u30c7\u30fc\u30bf\u578b: {$data['type']}\"),\n};\n<\/pre>\n\n\n\n<p><strong>null\u5408\u4f53\u6f14\u7b97\u5b50\u3068\u306e\u7d44\u307f\u5408\u308f\u305b:<\/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=\"\">$status = $_GET['status'] ?? 'unknown';\n\n$message = match ($status) {\n    'active', 'enabled' =&gt; '\u30a2\u30ab\u30a6\u30f3\u30c8\u306f\u6709\u52b9\u3067\u3059',\n    'inactive', 'disabled' =&gt; '\u30a2\u30ab\u30a6\u30f3\u30c8\u306f\u7121\u52b9\u3067\u3059',\n    'pending' =&gt; '\u627f\u8a8d\u5f85\u3061\u3067\u3059',\n    default =&gt; '\u4e0d\u660e\u306a\u30b9\u30c6\u30fc\u30bf\u30b9\u3067\u3059',\n};\n\necho $message;\n<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u4f8b\u304b\u3089\u5206\u304b\u308b\u3088\u3046\u306b\u3001PHP 8.0\u4ee5\u964d\u3067\u306f\u6761\u4ef6\u5206\u5c90\u306e\u8a18\u8ff0\u304c\u5927\u5e45\u306b\u7c21\u7d20\u5316\u3055\u308c\u3001\u3088\u308a\u5b89\u5168\u3067\u8868\u73fe\u529b\u8c4a\u304b\u306a\u30b3\u30fc\u30c9\u304c\u66f8\u3051\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-39\">switch\u6587\u3068match\u5f0f\u306e\u4f7f\u3044\u5206\u3051<\/h3>\n\n\n\n<p>match\u306fswitch\u6587\u306e\u5b8c\u5168\u306a\u4ee3\u66ff\u3067\u306f\u306a\u304f\u3001\u305d\u308c\u305e\u308c\u306b\u9069\u3057\u305f\u4f7f\u7528\u5834\u9762\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>switch\u3092\u9078\u3076\u5834\u5408:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5404\u6761\u4ef6\u306b\u5bfe\u3057\u3066\u8907\u6570\u884c\u306e\u51e6\u7406\u304c\u5fc5\u8981\u306a\u3068\u304d<\/li>\n\n\n\n<li>\u610f\u56f3\u7684\u306b\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u3092\u5229\u7528\u3057\u305f\u3044\u3068\u304d<\/li>\n\n\n\n<li>PHP 8.0\u672a\u6e80\u306e\u74b0\u5883\u3067\u958b\u767a\u3057\u3066\u3044\u308b\u3068\u304d<\/li>\n<\/ul>\n\n\n\n<p><strong>match\u3092\u9078\u3076\u5834\u5408:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5358\u7d14\u306a\u5024\u306e\u5272\u308a\u5f53\u3066\u3084\u95a2\u6570\u547c\u3073\u51fa\u3057\u306e\u3088\u3046\u306a\u77ed\u3044\u51e6\u7406<\/li>\n\n\n\n<li>\u53b3\u5bc6\u306a\u6bd4\u8f03\uff08===\uff09\u304c\u5fc5\u8981\u306a\u3068\u304d<\/li>\n\n\n\n<li>\u5f0f\u3068\u3057\u3066\u306e\u7d50\u679c\u3092\u76f4\u63a5\u4f7f\u7528\u3057\u305f\u3044\u3068\u304d<\/li>\n\n\n\n<li>\u6761\u4ef6\u6f0f\u308c\u3092\u4f8b\u5916\u3067\u691c\u51fa\u3057\u305f\u3044\u3068\u304d<\/li>\n<\/ul>\n\n\n\n<p>PHP 8.0\u4ee5\u964d\u3067\u65b0\u898f\u958b\u767a\u3092\u884c\u3046\u5834\u5408\u306f\u3001\u53ef\u80fd\u306a\u9650\u308amatch\u5f0f\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002\u30b3\u30fc\u30c9\u304c\u3088\u308a\u7c21\u6f54\u306b\u306a\u308a\u3001\u4e00\u822c\u7684\u306a\u30d0\u30b0\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3068\u306e\u4e92\u63db\u6027\u3084\u3001\u8907\u96d1\u306a\u51e6\u7406\u30ed\u30b8\u30c3\u30af\u306b\u3088\u3063\u3066\u306f\u3001\u5f93\u6765\u306eswitch\u6587\u304c\u9069\u3057\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6700\u7d42\u7684\u306b\u306f\u3001\u8aad\u307f\u3084\u3059\u3055\u3068\u4fdd\u5b88\u6027\u3092\u91cd\u8996\u3057\u3066\u3001\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u65b9\u3092\u9078\u629e\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306b\u304a\u3044\u3066\u3001\u6761\u4ef6\u5206\u5c90\u51e6\u7406\u306f\u6b20\u304b\u305b\u306a\u3044\u8981\u7d20\u3067\u3059\u3002PHP\u3067\u306f\u8907\u6570\u306e\u6761\u4ef6\u5206\u5c90\u3092\u6271\u3046\u969b\u306b\u3001if-else\u6587\u3068\u4e26\u3093\u3067switch\u6587\u304c\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002 switch\u6587\u306f\u8907\u6570\u306e\u6761\u4ef6\u306b\u57fa\u3065\u3044\u3066\u30b3\u30fc\u30c9\u306e\u5b9f\u884c &#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-3450","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\/3450","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=3450"}],"version-history":[{"count":1,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/3450\/revisions"}],"predecessor-version":[{"id":3451,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/3450\/revisions\/3451"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3450"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3450"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3450"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}