{"id":3737,"date":"2025-04-21T10:17:43","date_gmt":"2025-04-21T01:17:43","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=3737"},"modified":"2025-04-21T12:04:00","modified_gmt":"2025-04-21T03:04:00","slug":"%e3%80%90%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%e3%80%91php%e3%81%aetime%e9%96%a2%e6%95%b0%e3%83%9e%e3%82%b9%e3%82%bf%e3%83%bc%e8%a1%93%ef%bc%81%e7%8f%be%e5%9c%a8%e6%99%82%e5%88%bb%e3%81%ae","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=3737","title":{"rendered":"\u3010\u5b8c\u5168\u30ac\u30a4\u30c9\u3011PHP\u306etime\u95a2\u6570\u30de\u30b9\u30bf\u30fc\u8853\uff01\u73fe\u5728\u6642\u523b\u306e\u53d6\u5f97\u304b\u3089\u5fdc\u7528\u30c6\u30af\u30cb\u30c3\u30af\u307e\u30677\u3064\u306e\u5b9f\u8df5\u4f8b"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">PHP\u306etime\u95a2\u6570\u3068\u306f\uff1fUNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306e\u57fa\u672c\u3092\u7406\u89e3\u3057\u3088\u3046<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3068\u306f1970\u5e741\u67081\u65e5\u304b\u3089\u306e\u7d4c\u904e\u79d2\u6570<\/a>      <\/li>      <li>        <a href=\"#i-2\">time\u95a2\u6570\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3068\u623b\u308a\u5024<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-3\">PHP\u306b\u304a\u3051\u308b\u6642\u9593\u51e6\u7406\u306e\u91cd\u8981\u6027<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-4\">time\u95a2\u6570\u3092\u4f7f\u3063\u305f\u73fe\u5728\u6642\u523b\u306e\u53d6\u5f97\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-5\">\u30b7\u30f3\u30d7\u30eb\u306a\u73fe\u5728\u6642\u523b\u306e\u53d6\u5f97\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-6\">\u3088\u308a\u9ad8\u901f\u306a\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u53d6\u5f97\uff1a$_SERVER[\u2018REQUEST_TIME\u2019]\u306e\u6d3b\u7528<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-7\">\u30de\u30a4\u30af\u30ed\u79d2\u5358\u4f4d\u306e\u7cbe\u5bc6\u306a\u6642\u9593\u53d6\u5f97\uff1amicrotime()\u95a2\u6570<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-8\">date\u95a2\u6570\u3068time\u95a2\u6570\u306e\u9023\u643a\uff1a\u65e5\u4ed8\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u6d3b\u7528\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-9\">date\u95a2\u6570\u306e\u57fa\u672c\u3068time\u95a2\u6570\u3068\u306e\u95a2\u4fc2<\/a>      <\/li>      <li>        <a href=\"#i-10\">\u69d8\u3005\u306a\u65e5\u4ed8\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u30d1\u30bf\u30fc\u30f3\u3068\u5b9f\u4f8b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-11\">\u65e5\u672c\u8a9e\u3067\u306e\u66dc\u65e5\u3084\u6708\u540d\u306e\u8868\u793a\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-14\">time\u95a2\u6570\u3092\u4f7f\u3063\u305f\u65e5\u6642\u8a08\u7b97\u306e\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-15\">\u672a\u6765\u307e\u305f\u306f\u904e\u53bb\u306e\u65e5\u6642\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-16\">\u4e8c\u3064\u306e\u65e5\u6642\u306e\u5dee\u5206\u3092\u6c42\u3081\u308b\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-17\">\u65e5\u4ed8\u6bd4\u8f03\u3092\u7c21\u5358\u306b\u884c\u3046\u305f\u3081\u306e\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-18\">time\u95a2\u6570\u3068strtotime\u95a2\u6570\u306e\u7d44\u307f\u5408\u308f\u305b\u6d3b\u7528<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-19\">strtotime\u95a2\u6570\u3067\u4eba\u9593\u304c\u8aad\u3081\u308b\u65e5\u4ed8\u3092\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306b\u5909\u63db<\/a>      <\/li>      <li>        <a href=\"#i-20\">\u76f8\u5bfe\u7684\u306a\u65e5\u6642\u6307\u5b9a\u3067\u67d4\u8edf\u306a\u65e5\u4ed8\u64cd\u4f5c<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-21\">\u7279\u5b9a\u306e\u65e5\u4ed8\u3084\u6642\u523b\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-22\">\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u8003\u616e\u3057\u305ftime\u95a2\u6570\u306e\u6d3b\u7528\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-23\">date_default_timezone_set\u306b\u3088\u308b\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u8a2d\u5b9a<\/a>      <\/li>      <li>        <a href=\"#i-24\">\u56fd\u969b\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u6642\u523b\u51e6\u7406\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-25\">\u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u306b\u95a2\u3059\u308b\u6ce8\u610f\u70b9\u3068\u5bfe\u7b56<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-26\">time\u95a2\u6570\u306e\u5b9f\u8df5\u7684\u30e6\u30fc\u30b9\u30b1\u30fc\u30b97\u9078<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-27\">\u30e6\u30fc\u30b6\u30fc\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u3068\u6709\u52b9\u671f\u9650\u306e\u8a2d\u5b9a<\/a>      <\/li>      <li>        <a href=\"#i-28\">\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u3084\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u8a18\u9332<\/a>      <\/li>      <li>        <a href=\"#i-29\">\u30d5\u30a1\u30a4\u30eb\u306e\u66f4\u65b0\u65e5\u6642\u3092\u5143\u306b\u3057\u305f\u51e6\u7406\u306e\u5b9f\u88c5<\/a>      <\/li>      <li>        <a href=\"#i-30\">\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6709\u52b9\u671f\u9650\u7ba1\u7406<\/a>      <\/li>      <li>        <a href=\"#i-31\">\u5b9a\u671f\u7684\u306a\u30bf\u30b9\u30af\u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30ea\u30f3\u30b0<\/a>      <\/li>      <li>        <a href=\"#i-32\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a08\u6e2c\u3068\u30d9\u30f3\u30c1\u30de\u30fc\u30af<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-33\">\u30e9\u30f3\u30c0\u30e0\u306aID\u3084\u4e00\u610f\u306e\u8b58\u5225\u5b50\u306e\u751f\u6210<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-34\">\u307e\u3068\u3081\uff1atime\u95a2\u6570\u3092\u6d3b\u7528\u3057\u305fPHP\u306e\u65e5\u6642\u51e6\u7406\u30de\u30b9\u30bf\u30fc\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-35\">\u672c\u8a18\u4e8b\u3067\u5b66\u3093\u3060time\u95a2\u6570\u306e\u91cd\u8981\u30dd\u30a4\u30f3\u30c8<\/a>      <\/li>      <li>        <a href=\"#i-36\">\u3088\u308a\u9ad8\u5ea6\u306a\u65e5\u6642\u51e6\u7406\u306e\u305f\u3081\u306eDateTime\u30af\u30e9\u30b9\u306e\u7d39\u4ecb<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-37\">PHP\u306e\u6642\u9593\u95a2\u9023\u6a5f\u80fd\u3092\u4f7f\u3044\u3053\u306a\u3059\u305f\u3081\u306e\u30ea\u30bd\u30fc\u30b9<\/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\u306etime\u95a2\u6570\u3068\u306f\uff1fUNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306e\u57fa\u672c\u3092\u7406\u89e3\u3057\u3088\u3046<\/h2>\n\n\n\n<p>PHP\u3067\u306e\u6642\u9593\u51e6\u7406\u306f\u591a\u304f\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306b\u304a\u3044\u3066\u6b20\u304b\u305b\u306a\u3044\u8981\u7d20\u3067\u3059\u3002\u305d\u306e\u57fa\u672c\u3068\u306a\u308b\u306e\u304c<code>time()<\/code>\u95a2\u6570\u3068\u3001\u3053\u306e\u95a2\u6570\u304c\u8fd4\u3059UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u57fa\u790e\u3092\u6b63\u3057\u304f\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u65e5\u4ed8\u3084\u6642\u523b\u306b\u95a2\u3059\u308b\u69d8\u3005\u306a\u51e6\u7406\u3092\u52b9\u7387\u7684\u306b\u5b9f\u88c5\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3068\u306f1970\u5e741\u67081\u65e5\u304b\u3089\u306e\u7d4c\u904e\u79d2\u6570<\/h3>\n\n\n\n<p>UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3068\u306f\u30011970\u5e741\u67081\u65e5\u5348\u524d0\u66420\u52060\u79d2\uff08UTC\u3001\u5354\u5b9a\u4e16\u754c\u6642\uff09\u304b\u3089\u73fe\u5728\u307e\u3067\u306e\u7d4c\u904e\u79d2\u6570\u3092\u8868\u3059\u6574\u6570\u5024\u3067\u3059\u3002\u3053\u306e\u57fa\u6e96\u6642\u523b\u306f\u300cUNIX\u5143\u671f\uff08UNIX Epoch\uff09\u300d\u3068\u547c\u3070\u308c\u3066\u304a\u308a\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u6642\u9593\u8868\u73fe\u306e\u6a19\u6e96\u3068\u3057\u3066\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3068\u3048\u3070\u3001\u300c2023\u5e744\u67081\u65e512\u66420\u52060\u79d2\u300d\u3068\u3044\u3046\u6642\u523b\u306f\u3001UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3067\u306f\u300c1680350400\u300d\u3068\u3044\u3046\u4e00\u3064\u306e\u6574\u6570\u5024\u3067\u8868\u73fe\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u65b9\u5f0f\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b7\u30f3\u30d7\u30eb\u306a\u6570\u5024\u3067\u65e5\u6642\u3092\u8868\u73fe\u3067\u304d\u308b<\/li>\n\n\n\n<li>\u65e5\u4ed8\u8a08\u7b97\u3084\u6bd4\u8f03\u304c\u5bb9\u6613\uff08\u5358\u7d14\u306a\u6570\u5024\u306e\u52a0\u6e1b\u7b97\u3067\u5b9f\u73fe\uff09<\/li>\n\n\n\n<li>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3084\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u9593\u3067\u306e\u4e92\u63db\u6027\u304c\u9ad8\u3044<\/li>\n\n\n\n<li>\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u306b\u4f9d\u5b58\u3057\u306a\u3044\u7d71\u4e00\u3055\u308c\u305f\u57fa\u6e96\u3067\u6642\u9593\u3092\u6271\u3048\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u305f\u3060\u3057\u300132\u30d3\u30c3\u30c8\u30b7\u30b9\u30c6\u30e0\u3067\u306f2038\u5e741\u670819\u65e503\u664214\u520607\u79d2\uff08UTC\u306e\u5834\u5408\uff09\u4ee5\u964d\u306e\u6642\u523b\u3092\u8868\u73fe\u3067\u304d\u306a\u3044\u300c2038\u5e74\u554f\u984c\uff08Y2K38\uff09\u300d\u304c\u5b58\u5728\u3057\u307e\u3059\u3002\u73fe\u4ee3\u306e64\u30d3\u30c3\u30c8\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3053\u306e\u554f\u984c\u306f\u5b9f\u8cea\u7684\u306b\u89e3\u6c7a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">time\u95a2\u6570\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3068\u623b\u308a\u5024<\/h3>\n\n\n\n<p>PHP\u306e<code>time()<\/code>\u95a2\u6570\u306f\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3001\u5f15\u6570\u3092\u53d6\u3089\u305a\u306b\u73fe\u5728\u306eUNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u8fd4\u3057\u307e\u3059\u3002\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u73fe\u5728\u306eUNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u53d6\u5f97\n$timestamp = time();\necho $timestamp; \/\/ \u4f8b: 1680350400\uff08\u5b9f\u884c\u6642\u306e\u6642\u523b\u306b\u3088\u3063\u3066\u7570\u306a\u308b\uff09\n<\/pre>\n\n\n\n<p><code>time()<\/code>\u95a2\u6570\u306e\u7279\u5fb4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f15\u6570\u306a\u3057\u3067\u547c\u3073\u51fa\u3059<\/li>\n\n\n\n<li>\u73fe\u5728\u306e\u6642\u523b\u3092UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\uff08\u6574\u6570\u5024\uff09\u3068\u3057\u3066\u8fd4\u3059<\/li>\n\n\n\n<li>\u30b5\u30fc\u30d0\u30fc\u306e\u8a2d\u5b9a\u6642\u9593\u306b\u57fa\u3065\u3044\u3066\u5024\u3092\u8fd4\u3059<\/li>\n\n\n\n<li>\u79d2\u5358\u4f4d\u306e\u7cbe\u5ea6\uff08\u5c0f\u6570\u70b9\u4ee5\u4e0b\u306e\u7cbe\u5ea6\u306f\u6301\u305f\u306a\u3044\uff09<\/li>\n\n\n\n<li>PHP\u306e\u6a19\u6e96\u95a2\u6570\u306a\u306e\u3067\u3001\u3069\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u3082\u7279\u5225\u306a\u8a2d\u5b9a\u306a\u3057\u3067\u4f7f\u7528\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">PHP\u306b\u304a\u3051\u308b\u6642\u9593\u51e6\u7406\u306e\u91cd\u8981\u6027<\/h3>\n\n\n\n<p>Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306b\u304a\u3044\u3066\u3001\u6642\u9593\u51e6\u7406\u306f\u591a\u304f\u306e\u91cd\u8981\u306a\u6a5f\u80fd\u306e\u57fa\u76e4\u3068\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406<\/strong>: \u30e6\u30fc\u30b6\u30fc\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u6709\u52b9\u671f\u9650\u306e\u8a2d\u5b9a\u3084\u78ba\u8a8d<\/li>\n\n\n\n<li><strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u5236\u5fa1<\/strong>: \u30c7\u30fc\u30bf\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u66f4\u65b0\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u7ba1\u7406<\/li>\n\n\n\n<li><strong>\u30ed\u30b0\u8a18\u9332<\/strong>: \u30b7\u30b9\u30c6\u30e0\u30a4\u30d9\u30f3\u30c8\u3084\u30e6\u30fc\u30b6\u30fc\u30a2\u30af\u30b7\u30e7\u30f3\u306e\u8a18\u9332<\/li>\n\n\n\n<li><strong>\u4e88\u7d04\u30b7\u30b9\u30c6\u30e0<\/strong>: \u5c06\u6765\u306e\u65e5\u6642\u306b\u57fa\u3065\u304f\u30a4\u30d9\u30f3\u30c8\u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30ea\u30f3\u30b0<\/li>\n\n\n\n<li><strong>\u7d4c\u904e\u6642\u9593\u306e\u8a08\u6e2c<\/strong>: \u51e6\u7406\u6642\u9593\u3084\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6e2c\u5b9a<\/li>\n\n\n\n<li><strong>\u6709\u52b9\u671f\u9650\u306e\u7ba1\u7406<\/strong>: \u30d1\u30b9\u30ef\u30fc\u30c9\u30ea\u30bb\u30c3\u30c8\u30c8\u30fc\u30af\u30f3\u306a\u3069\u306e\u671f\u9650\u5207\u308c\u30c1\u30a7\u30c3\u30af<\/li>\n<\/ol>\n\n\n\n<p><code>time()<\/code>\u95a2\u6570\u306f\u3053\u308c\u3089\u306e\u6a5f\u80fd\u3092\u5b9f\u88c5\u3059\u308b\u969b\u306e\u57fa\u672c\u3068\u306a\u308b\u95a2\u6570\u3067\u3042\u308a\u3001\u4ed6\u306e\u65e5\u6642\u95a2\u9023\u95a2\u6570\uff08<code>date()<\/code>\u3001<code>strtotime()<\/code>\u306a\u3069\uff09\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u9ad8\u5ea6\u306a\u6642\u9593\u51e6\u7406\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>time()<\/code>\u95a2\u6570\u3092\u4f7f\u3063\u305f\u5177\u4f53\u7684\u306a\u6642\u523b\u53d6\u5f97\u30c6\u30af\u30cb\u30c3\u30af\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">time\u95a2\u6570\u3092\u4f7f\u3063\u305f\u73fe\u5728\u6642\u523b\u306e\u53d6\u5f97\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<p>PHP\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u73fe\u5728\u6642\u523b\u3092\u6271\u3046\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u51e6\u7406\u306e\u76ee\u7684\u3084\u5fc5\u8981\u306a\u7cbe\u5ea6\u306b\u5fdc\u3058\u3066\u3001\u6700\u9069\u306a\u65b9\u6cd5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u52b9\u7387\u7684\u3067\u6b63\u78ba\u306a\u6642\u9593\u51e6\u7406\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u57fa\u672c\u7684\u306atime\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u304b\u3089\u3001\u3088\u308a\u9ad8\u5ea6\u306a\u65b9\u6cd5\u307e\u3067\u6bb5\u968e\u7684\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u30b7\u30f3\u30d7\u30eb\u306a\u73fe\u5728\u6642\u523b\u306e\u53d6\u5f97\u65b9\u6cd5<\/h3>\n\n\n\n<p>PHP\u3067\u306e\u73fe\u5728\u6642\u523b\u306e\u53d6\u5f97\u306f\u3001\u4e00\u822c\u7684\u306btime()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u6700\u3082\u30b7\u30f3\u30d7\u30eb\u3067\u76f4\u611f\u7684\u306a\u65b9\u6cd5\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=\"\">\/\/ \u57fa\u672c\u7684\u306atime()\u95a2\u6570\u306e\u4f7f\u7528\u6cd5\n$current_timestamp = time();\necho \"\u73fe\u5728\u306eUNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7: \" . $current_timestamp;\n\n\/\/ \u53d6\u5f97\u3057\u305f\u6642\u9593\u3092\u308f\u304b\u308a\u3084\u3059\u3044\u5f62\u5f0f\u306b\u5909\u63db\necho \"\u73fe\u5728\u306e\u65e5\u6642: \" . date('Y-m-d H:i:s', $current_timestamp);\n<\/pre>\n\n\n\n<p>\u3053\u306e\u65b9\u6cd5\u306f\u7c21\u5358\u306b\u5b9f\u88c5\u3067\u304d\u3001\u307b\u3068\u3093\u3069\u306e\u65e5\u6642\u51e6\u7406\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u5341\u5206\u306a\u7cbe\u5ea6\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002time()\u95a2\u6570\u306f\u79d2\u5358\u4f4d\u306e\u7cbe\u5ea6\u3092\u6301\u3061\u3001\u5185\u90e8\u7684\u306b\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u6642\u9593\u3092\u76f4\u63a5\u53c2\u7167\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u3088\u308a\u9ad8\u901f\u306a\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u53d6\u5f97\uff1a$_SERVER[\u2018REQUEST_TIME\u2019]\u306e\u6d3b\u7528<\/h3>\n\n\n\n<p>\u540c\u4e00\u30ea\u30af\u30a8\u30b9\u30c8\u5185\u3067\u8907\u6570\u56de\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u53d6\u5f97\u3059\u308b\u5834\u5408\u3001\u6bce\u56detime()\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u3088\u308a\u3082$_SERVER[\u2018REQUEST_TIME\u2019]\u3092\u5229\u7528\u3059\u308b\u65b9\u304c\u52b9\u7387\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30ea\u30af\u30a8\u30b9\u30c8\u958b\u59cb\u6642\u70b9\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u53d6\u5f97\n$request_timestamp = $_SERVER['REQUEST_TIME'];\necho \"\u30ea\u30af\u30a8\u30b9\u30c8\u958b\u59cb\u6642\u306eUNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7: \" . $request_timestamp;\n\n\/\/ \u3088\u308a\u7cbe\u5ea6\u306e\u9ad8\u3044\u30d5\u30ed\u30fc\u30c8\u5024\u3068\u3057\u3066\u53d6\u5f97\uff08PHP 5.4.0\u4ee5\u964d\uff09\n$request_timestamp_float = $_SERVER['REQUEST_TIME_FLOAT'];\necho \"\u30ea\u30af\u30a8\u30b9\u30c8\u958b\u59cb\u6642\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\uff08\u9ad8\u7cbe\u5ea6\uff09: \" . $request_timestamp_float;\n<\/pre>\n\n\n\n<p>$_SERVER[\u2018REQUEST_TIME\u2019]\u306f\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u5b9f\u884c\u958b\u59cb\u6642\u70b9\u3067\u4e00\u5ea6\u3060\u3051\u8a08\u7b97\u3055\u308c\u3001\u305d\u306e\u5024\u304c\u4fdd\u6301\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u305f\u3081\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8907\u6570\u56de\u306e\u53c2\u7167\u3067\u3082\u8ffd\u52a0\u306e\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u304c\u767a\u751f\u3057\u306a\u3044<\/li>\n\n\n\n<li>\u540c\u4e00\u30ea\u30af\u30a8\u30b9\u30c8\u5185\u3067\u306e\u51e6\u7406\u6642\u9593\u3082\u542b\u307e\u308c\u306a\u3044\uff08\u5e38\u306b\u4e00\u5b9a\uff09<\/li>\n\n\n\n<li>\u7279\u306b\u9ad8\u8ca0\u8377\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a\u306b\u5bc4\u4e0e<\/li>\n<\/ul>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u3053\u306e\u65b9\u6cd5\u3067\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u958b\u59cb\u6642\u70b9\u306e\u6642\u9593\u3057\u304b\u53d6\u5f97\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u51e6\u7406\u4e2d\u306e\u7d4c\u904e\u6642\u9593\u3092\u6e2c\u5b9a\u3057\u305f\u3044\u5834\u5408\u306b\u306f\u9069\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">\u30de\u30a4\u30af\u30ed\u79d2\u5358\u4f4d\u306e\u7cbe\u5bc6\u306a\u6642\u9593\u53d6\u5f97\uff1amicrotime()\u95a2\u6570<\/h3>\n\n\n\n<p>\u3088\u308a\u9ad8\u7cbe\u5ea6\u306a\u6642\u9593\u6e2c\u5b9a\u304c\u5fc5\u8981\u306a\u5834\u5408\u3001microtime()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u306f\u30de\u30a4\u30af\u30ed\u79d2\uff08100\u4e07\u5206\u306e1\u79d2\uff09\u5358\u4f4d\u306e\u7cbe\u5ea6\u3092\u63d0\u4f9b\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=\"\">\/\/ \u6587\u5b57\u5217\u5f62\u5f0f\u3067\u30de\u30a4\u30af\u30ed\u79d2\u3092\u542b\u3080\u6642\u9593\u3092\u53d6\u5f97\n$microtime_string = microtime();\necho \"\u30de\u30a4\u30af\u30ed\u79d2\uff08\u6587\u5b57\u5217\u5f62\u5f0f\uff09: \" . $microtime_string; \/\/ \"0.12345600 1680350400\" \u306e\u3088\u3046\u306a\u5f62\u5f0f\n\n\/\/ \u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u3068\u3057\u3066\u53d6\u5f97\uff08\u3088\u308a\u6271\u3044\u3084\u3059\u3044\uff09\n$microtime_float = microtime(true);\necho \"\u30de\u30a4\u30af\u30ed\u79d2\uff08\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\uff09: \" . $microtime_float; \/\/ 1680350400.123456 \u306e\u3088\u3046\u306a\u5f62\u5f0f\n\n\/\/ \u51e6\u7406\u6642\u9593\u306e\u8a08\u6e2c\u4f8b\n$start_time = microtime(true);\n\/\/ ... \u4f55\u3089\u304b\u306e\u51e6\u7406 ...\n$end_time = microtime(true);\n$execution_time = $end_time - $start_time;\necho \"\u51e6\u7406\u6642\u9593: \" . $execution_time . \" \u79d2\";\n<\/pre>\n\n\n\n<p>microtime()\u95a2\u6570\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u7528\u9014\u306b\u6700\u9069\u3067\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3084\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0<\/li>\n\n\n\n<li>\u9ad8\u7cbe\u5ea6\u306a\u30bf\u30a4\u30df\u30f3\u30b0\u51e6\u7406<\/li>\n\n\n\n<li>\u51e6\u7406\u6642\u9593\u306e\u8a73\u7d30\u306a\u5206\u6790<\/li>\n<\/ul>\n\n\n\n<p>\u51e6\u7406\u6642\u9593\u306e\u8a08\u6e2c\u3084\u30bf\u30a4\u30df\u30f3\u30b0\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u51e6\u7406\u3092\u884c\u3046\u5834\u5408\u306f\u3001time()\u95a2\u6570\u3088\u308a\u3082microtime(true)\u306e\u4f7f\u7528\u3092\u691c\u8a0e\u3059\u3079\u304d\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-8\">date\u95a2\u6570\u3068time\u95a2\u6570\u306e\u9023\u643a\uff1a\u65e5\u4ed8\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u6d3b\u7528\u6cd5<\/h2>\n\n\n\n<p>UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306f\u8a08\u7b97\u306b\u4fbf\u5229\u3067\u3059\u304c\u3001\u4eba\u9593\u304c\u8aad\u3081\u308b\u5f62\u5f0f\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u3053\u3067\u306f\u3001time\u95a2\u6570\u3067\u53d6\u5f97\u3057\u305f\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u4eba\u9593\u304c\u7406\u89e3\u3057\u3084\u3059\u3044\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308bdate\u95a2\u6570\u306e\u6d3b\u7528\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">date\u95a2\u6570\u306e\u57fa\u672c\u3068time\u95a2\u6570\u3068\u306e\u95a2\u4fc2<\/h3>\n\n\n\n<p>date\u95a2\u6570\u306f\u3001\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u6307\u5b9a\u3055\u308c\u305f\u5f62\u5f0f\u306e\u6587\u5b57\u5217\u306b\u5909\u63db\u3059\u308b\u95a2\u6570\u3067\u3059\u3002\u57fa\u672c\u7684\u306a\u69cb\u6587\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=\"\">string date(string $format, ?int $timestamp = null)\n<\/pre>\n\n\n\n<p>\u7b2c2\u5f15\u6570\u306e<code>$timestamp<\/code>\u3092\u7701\u7565\u3059\u308b\u3068\u3001\u73fe\u5728\u6642\u523b\uff08\u5185\u90e8\u7684\u306b<code>time()<\/code>\u3092\u547c\u3073\u51fa\u3057\u305f\u7d50\u679c\uff09\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002time\u95a2\u6570\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u7279\u5b9a\u306e\u6642\u523b\u3092\u69d8\u3005\u306a\u5f62\u5f0f\u3067\u8868\u793a\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=\"\">\/\/ \u73fe\u5728\u6642\u523b\u3092\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\necho date('Y-m-d H:i:s'); \/\/ \u4f8b: 2023-04-01 13:45:30\n\n\/\/ time\u95a2\u6570\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u660e\u793a\u7684\u306b\u73fe\u5728\u6642\u523b\u3092\u6307\u5b9a\uff08\u4e0a\u3068\u540c\u3058\u7d50\u679c\uff09\necho date('Y-m-d H:i:s', time());\n\n\/\/ 1\u65e5\u5f8c\u306e\u6642\u523b\u3092\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\n$tomorrow = time() + 86400; \/\/ 86400\u79d2 = 1\u65e5\necho date('Y-m-d H:i:s', $tomorrow);\n<\/pre>\n\n\n\n<p>time\u95a2\u6570\u3068date\u95a2\u6570\u306f\u5bc6\u63a5\u306b\u9023\u643a\u3057\u3066\u304a\u308a\u3001\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306e\u53d6\u5f97\u3068\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u5909\u63db\u3068\u3044\u3046\u5f79\u5272\u5206\u62c5\u3067\u52b9\u7387\u7684\u306b\u6642\u9593\u51e6\u7406\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u69d8\u3005\u306a\u65e5\u4ed8\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u30d1\u30bf\u30fc\u30f3\u3068\u5b9f\u4f8b<\/h3>\n\n\n\n<p>date\u95a2\u6570\u3067\u306f\u3001\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u6587\u5b57\u5217\u306b\u7279\u6b8a\u306a\u6307\u5b9a\u5b50\u3092\u4f7f\u3063\u3066\u3001\u65e5\u4ed8\u3084\u6642\u523b\u306e\u8868\u793a\u5f62\u5f0f\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u307e\u3059\u3002\u3088\u304f\u4f7f\u308f\u308c\u308b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u6307\u5b9a\u5b50\u3068\u5b9f\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n<div id=\"id-33a52fa0-2539-4b36-b95c-66122dc228ba\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6307\u5b9a\u5b50<\/th><th>\u8aac\u660e<\/th><th>\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>Y<\/td><td>4\u6841\u306e\u5e74<\/td><td>2023<\/td><\/tr><tr><td>y<\/td><td>2\u6841\u306e\u5e74<\/td><td>23<\/td><\/tr><tr><td>m<\/td><td>2\u6841\u306e\u6708\uff08\u30bc\u30ed\u57cb\u3081\uff09<\/td><td>01\uff5e12<\/td><\/tr><tr><td>n<\/td><td>\u6708\uff08\u30bc\u30ed\u57cb\u3081\u306a\u3057\uff09<\/td><td>1\uff5e12<\/td><\/tr><tr><td>d<\/td><td>2\u6841\u306e\u65e5\uff08\u30bc\u30ed\u57cb\u3081\uff09<\/td><td>01\uff5e31<\/td><\/tr><tr><td>j<\/td><td>\u65e5\uff08\u30bc\u30ed\u57cb\u3081\u306a\u3057\uff09<\/td><td>1\uff5e31<\/td><\/tr><tr><td>H<\/td><td>24\u6642\u9593\u5236\u306e\u6642\uff08\u30bc\u30ed\u57cb\u3081\uff09<\/td><td>00\uff5e23<\/td><\/tr><tr><td>h<\/td><td>12\u6642\u9593\u5236\u306e\u6642\uff08\u30bc\u30ed\u57cb\u3081\uff09<\/td><td>01\uff5e12<\/td><\/tr><tr><td>i<\/td><td>\u5206\uff08\u30bc\u30ed\u57cb\u3081\uff09<\/td><td>00\uff5e59<\/td><\/tr><tr><td>s<\/td><td>\u79d2\uff08\u30bc\u30ed\u57cb\u3081\uff09<\/td><td>00\uff5e59<\/td><\/tr><tr><td>a<\/td><td>\u5348\u524d\/\u5348\u5f8c\uff08\u5c0f\u6587\u5b57\uff09<\/td><td>am, pm<\/td><\/tr><tr><td>A<\/td><td>\u5348\u524d\/\u5348\u5f8c\uff08\u5927\u6587\u5b57\uff09<\/td><td>AM, PM<\/td><\/tr><tr><td>l<\/td><td>\u66dc\u65e5\u306e\u540d\u79f0<\/td><td>Sunday\uff5eSaturday<\/td><\/tr><tr><td>D<\/td><td>\u66dc\u65e5\u306e\u77ed\u7e2e\u5f62<\/td><td>Sun\uff5eSat<\/td><\/tr><tr><td>F<\/td><td>\u6708\u306e\u540d\u79f0<\/td><td>January\uff5eDecember<\/td><\/tr><tr><td>M<\/td><td>\u6708\u306e\u77ed\u7e2e\u5f62<\/td><td>Jan\uff5eDec<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u3053\u308c\u3089\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u69d8\u3005\u306a\u5f62\u5f0f\u306e\u65e5\u4ed8\u8868\u73fe\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$timestamp = time();\n\n\/\/ ISO 8601\u5f62\u5f0f\uff08\u56fd\u969b\u6a19\u6e96\uff09\necho date('c', $timestamp); \/\/ \u4f8b: 2023-04-01T13:45:30+09:00\n\n\/\/ \u65e5\u672c\u306e\u4e00\u822c\u7684\u306a\u5f62\u5f0f\necho date('Y\u5e74m\u6708d\u65e5 H\u6642i\u5206s\u79d2', $timestamp); \/\/ \u4f8b: 2023\u5e7404\u670801\u65e5 13\u664245\u520630\u79d2\n\n\/\/ \u7c73\u56fd\u5f62\u5f0f\uff08\u6708\/\u65e5\/\u5e74\uff09\necho date('m\/d\/Y', $timestamp); \/\/ \u4f8b: 04\/01\/2023\n\n\/\/ \u82f1\u56fd\u5f62\u5f0f\uff08\u65e5\/\u6708\/\u5e74\uff09\necho date('d\/m\/Y', $timestamp); \/\/ \u4f8b: 01\/04\/2023\n\n\/\/ \u30d5\u30a1\u30a4\u30eb\u540d\u306b\u9069\u3057\u305f\u5f62\u5f0f\necho date('Ymd_His', $timestamp); \/\/ \u4f8b: 20230401_134530\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u65e5\u672c\u8a9e\u3067\u306e\u66dc\u65e5\u3084\u6708\u540d\u306e\u8868\u793a\u65b9\u6cd5<\/h3>\n\n\n\n<p>date\u95a2\u6570\u3060\u3051\u3067\u306f\u65e5\u672c\u8a9e\u306e\u66dc\u65e5\u3084\u6708\u540d\u3092\u76f4\u63a5\u8868\u793a\u3067\u304d\u307e\u305b\u3093\u304c\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u65b9\u6cd5\u3067\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-12\">1. \u914d\u5217\u3092\u4f7f\u7528\u3057\u305f\u5909\u63db<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u65e5\u672c\u8a9e\u306e\u66dc\u65e5\u3092\u8868\u793a\n$timestamp = time();\n$week_ja = ['\u65e5', '\u6708', '\u706b', '\u6c34', '\u6728', '\u91d1', '\u571f'];\n$w = date('w', $timestamp); \/\/ 0\uff08\u65e5\u66dc\uff09\uff5e6\uff08\u571f\u66dc\uff09\u306e\u6570\u5024\u3092\u53d6\u5f97\necho date('Y\u5e74m\u6708d\u65e5', $timestamp) . '\uff08' . $week_ja[$w] . '\uff09'; \/\/ \u4f8b: 2023\u5e7404\u670801\u65e5\uff08\u571f\uff09\n\n\/\/ \u65e5\u672c\u8a9e\u306e\u6708\u540d\u3092\u8868\u793a\n$month_ja = ['', '1\u6708', '2\u6708', '3\u6708', '4\u6708', '5\u6708', '6\u6708', '7\u6708', '8\u6708', '9\u6708', '10\u6708', '11\u6708', '12\u6708'];\n$m = date('n', $timestamp); \/\/ 1\uff5e12\u306e\u6570\u5024\u3092\u53d6\u5f97\necho $month_ja[$m] . date('d\u65e5', $timestamp); \/\/ \u4f8b: 4\u670801\u65e5\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-13\">2. IntlDateFormatter\u30af\u30e9\u30b9\u3092\u4f7f\u7528\uff08PHP 5.3.0\u4ee5\u964d\uff09<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ IntlDateFormatter\u3092\u4f7f\u3063\u305f\u65e5\u672c\u8a9e\u8868\u793a\uff08intl\u62e1\u5f35\u304c\u5fc5\u8981\uff09\n$fmt = new IntlDateFormatter(\n    'ja_JP',\n    IntlDateFormatter::FULL,\n    IntlDateFormatter::FULL,\n    'Asia\/Tokyo',\n    IntlDateFormatter::GREGORIAN\n);\necho $fmt-&gt;format(time()); \/\/ \u4f8b: 2023\u5e744\u67081\u65e5\u571f\u66dc\u65e5 13\u664245\u520630\u79d2 \u65e5\u672c\u6a19\u6e96\u6642\n<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u65b9\u6cd5\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001PHP\u306edate\u95a2\u6570\u3068time\u95a2\u6570\u3092\u6d3b\u7528\u3057\u3066\u3001\u76ee\u7684\u306b\u5fdc\u3058\u305f\u6700\u9069\u306a\u65e5\u6642\u8868\u793a\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-14\">time\u95a2\u6570\u3092\u4f7f\u3063\u305f\u65e5\u6642\u8a08\u7b97\u306e\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<p>UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306f\u5358\u306a\u308b\u6574\u6570\u5024\u3067\u3042\u308b\u305f\u3081\u3001\u65e5\u6642\u8a08\u7b97\u304c\u975e\u5e38\u306b\u7c21\u5358\u306b\u306a\u308a\u307e\u3059\u3002time\u95a2\u6570\u3067\u53d6\u5f97\u3057\u305f\u5024\u3092\u4f7f\u3063\u305f\u5b9f\u8df5\u7684\u306a\u65e5\u6642\u8a08\u7b97\u30c6\u30af\u30cb\u30c3\u30af\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u672a\u6765\u307e\u305f\u306f\u904e\u53bb\u306e\u65e5\u6642\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u57fa\u672c\u7684\u306a\u6642\u9593\u5358\u4f4d\u3092\u79d2\u306b\u63db\u7b97\u3059\u308c\u3070\u3001UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306b\u5bfe\u3057\u3066\u52a0\u6e1b\u7b97\u3059\u308b\u3060\u3051\u3067\u672a\u6765\u307e\u305f\u306f\u904e\u53bb\u306e\u65e5\u6642\u3092\u7c21\u5358\u306b\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6642\u9593\u5358\u4f4d\u306e\u5b9a\u7fa9\n$minute = 60;         \/\/ 60\u79d2\n$hour = 60 * $minute; \/\/ 3,600\u79d2\n$day = 24 * $hour;    \/\/ 86,400\u79d2\n$week = 7 * $day;     \/\/ 604,800\u79d2\n\n\/\/ \u73fe\u5728\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u53d6\u5f97\n$now = time();\n\n\/\/ \u672a\u6765\u306e\u6642\u523b\u3092\u8a08\u7b97\n$tomorrow = $now + $day;                 \/\/ \u660e\u65e5\u306e\u540c\u6642\u523b\n$next_week = $now + $week;               \/\/ 1\u9031\u9593\u5f8c\n$two_hours_later = $now + (2 * $hour);   \/\/ 2\u6642\u9593\u5f8c\n$thirty_mins_later = $now + (30 * $minute); \/\/ 30\u5206\u5f8c\n\n\/\/ \u904e\u53bb\u306e\u6642\u523b\u3092\u8a08\u7b97\n$yesterday = $now - $day;                \/\/ \u6628\u65e5\u306e\u540c\u6642\u523b\n$last_week = $now - $week;               \/\/ 1\u9031\u9593\u524d\n$three_hours_ago = $now - (3 * $hour);   \/\/ 3\u6642\u9593\u524d\n\n\/\/ \u8a08\u7b97\u7d50\u679c\u3092\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3057\u3066\u8868\u793a\necho \"\u73fe\u5728\u6642\u523b: \" . date('Y-m-d H:i:s', $now) . \"\\n\";\necho \"\u660e\u65e5: \" . date('Y-m-d H:i:s', $tomorrow) . \"\\n\";\necho \"3\u6642\u9593\u524d: \" . date('Y-m-d H:i:s', $three_hours_ago) . \"\\n\";\n<\/pre>\n\n\n\n<p>\u3053\u306e\u65b9\u6cd5\u306f\u65e5\u5358\u4f4d\u3084\u6642\u9593\u5358\u4f4d\u306e\u8a08\u7b97\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u6708\u3084\u5e74\u3092\u307e\u305f\u3050\u8a08\u7b97\u306b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u6708\u306b\u3088\u3063\u3066\u65e5\u6570\u304c\u7570\u306a\u308b\u305f\u3081\u3001\u300c1\u30f6\u6708\u5f8c\u300d\u306e\u3088\u3046\u306a\u8a08\u7b97\u306f\u5358\u7d14\u306a\u52a0\u7b97\u3067\u306f\u6b63\u78ba\u306b\u6c42\u3081\u3089\u308c\u307e\u305b\u3093\u3002\u305d\u306e\u3088\u3046\u306a\u5834\u5408\u306fstrtotime\u95a2\u6570\u3084DateTime\u30af\u30e9\u30b9\u306e\u4f7f\u7528\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u4e8c\u3064\u306e\u65e5\u6642\u306e\u5dee\u5206\u3092\u6c42\u3081\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u4e8c\u3064\u306e\u65e5\u6642\u306e\u5dee\u5206\u3092\u8a08\u7b97\u3059\u308b\u306b\u306f\u3001\u305d\u308c\u305e\u308c\u306eUNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306e\u5dee\u3092\u53d6\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ 2\u3064\u306e\u65e5\u6642\u3092\u5b9a\u7fa9\n$date1 = strtotime('2023-04-01 10:00:00');\n$date2 = strtotime('2023-04-05 15:30:00');\n\n\/\/ \u79d2\u5358\u4f4d\u3067\u306e\u5dee\u5206\u3092\u8a08\u7b97\n$diff_seconds = abs($date2 - $date1);\n\n\/\/ \u65e5\u6570\u3001\u6642\u9593\u3001\u5206\u3001\u79d2\u306b\u5909\u63db\n$diff_days = floor($diff_seconds \/ $day);\n$diff_seconds %= $day;\n$diff_hours = floor($diff_seconds \/ $hour);\n$diff_seconds %= $hour;\n$diff_minutes = floor($diff_seconds \/ $minute);\n$diff_seconds %= $minute;\n\n\/\/ \u7d50\u679c\u3092\u8868\u793a\necho \"\u65e5\u6642\u306e\u5dee: {$diff_days}\u65e5 {$diff_hours}\u6642\u9593 {$diff_minutes}\u5206 {$diff_seconds}\u79d2\";\n\/\/ \u51fa\u529b\u4f8b: \u65e5\u6642\u306e\u5dee: 4\u65e5 5\u6642\u9593 30\u5206 0\u79d2\n\n\/\/ \u5358\u7d14\u306b\u6642\u9593\u5dee\u3092\u7279\u5b9a\u306e\u5358\u4f4d\u3067\u8868\u793a\necho \"\u5dee\u5206\uff08\u65e5\u6570\uff09: \" . floor(($date2 - $date1) \/ $day) . \"\u65e5\\n\";\necho \"\u5dee\u5206\uff08\u6642\u9593\uff09: \" . floor(($date2 - $date1) \/ $hour) . \"\u6642\u9593\\n\";\necho \"\u5dee\u5206\uff08\u5206\uff09: \" . floor(($date2 - $date1) \/ $minute) . \"\u5206\\n\";\n<\/pre>\n\n\n\n<p>\u3053\u306e\u65b9\u6cd5\u306b\u3088\u308a\u3001\u4e88\u7d04\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u6ede\u5728\u65e5\u6570\u8a08\u7b97\u3084\u7d4c\u904e\u6642\u9593\u306e\u8868\u793a\u306a\u3069\u304c\u7c21\u5358\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u65e5\u4ed8\u6bd4\u8f03\u3092\u7c21\u5358\u306b\u884c\u3046\u305f\u3081\u306e\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p>UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306f\u5358\u306a\u308b\u6574\u6570\u5024\u306a\u306e\u3067\u3001\u901a\u5e38\u306e\u6bd4\u8f03\u6f14\u7b97\u5b50\uff08&lt;, &gt;, &lt;=, &gt;=, ==, !=\uff09\u3092\u4f7f\u3063\u3066\u7c21\u5358\u306b\u65e5\u6642\u306e\u6bd4\u8f03\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u73fe\u5728\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\n$now = time();\n\n\/\/ \u7279\u5b9a\u306e\u65e5\u6642\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\n$event_time = strtotime('2023-12-31 23:59:59');\n\n\/\/ \u65e5\u4ed8\u306e\u6bd4\u8f03\nif ($now &lt; $event_time) {\n    echo \"\u30a4\u30d9\u30f3\u30c8\u306f\u307e\u3060\u5148\u3067\u3059\uff08\u6b8b\u308a \" . ceil(($event_time - $now) \/ $day) . \" \u65e5\uff09\";\n} elseif ($now &gt; $event_time) {\n    echo \"\u30a4\u30d9\u30f3\u30c8\u306f\u65e2\u306b\u7d42\u4e86\u3057\u3066\u3044\u307e\u3059\uff08\" . floor(($now - $event_time) \/ $day) . \" \u65e5\u524d\uff09\";\n} else {\n    echo \"\u30a4\u30d9\u30f3\u30c8\u958b\u50ac\u4e2d\u3067\u3059\uff01\";\n}\n\n\/\/ \u65e5\u4ed8\u306e\u7bc4\u56f2\u30c1\u30a7\u30c3\u30af\n$start_date = strtotime('2023-04-01');\n$end_date = strtotime('2023-04-30');\n\nif ($now &gt;= $start_date &amp;&amp; $now &lt;= $end_date) {\n    echo \"\u73fe\u5728\u306e\u65e5\u4ed8\u306f\u6307\u5b9a\u671f\u9593\u5185\u3067\u3059\";\n} else {\n    echo \"\u73fe\u5728\u306e\u65e5\u4ed8\u306f\u6307\u5b9a\u671f\u9593\u5916\u3067\u3059\";\n}\n\n\/\/ \u7279\u5b9a\u306e\u66dc\u65e5\u304b\u3069\u3046\u304b\u306e\u30c1\u30a7\u30c3\u30af\n$weekday = date('w', $now); \/\/ 0\uff08\u65e5\u66dc\uff09\uff5e6\uff08\u571f\u66dc\uff09\nif ($weekday == 0 || $weekday == 6) {\n    echo \"\u4eca\u65e5\u306f\u9031\u672b\u3067\u3059\";\n} else {\n    echo \"\u4eca\u65e5\u306f\u5e73\u65e5\u3067\u3059\";\n}\n<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6bd4\u8f03\u30c6\u30af\u30cb\u30c3\u30af\u306f\u3001\u4e88\u7d04\u30b7\u30b9\u30c6\u30e0\u3001\u30a4\u30d9\u30f3\u30c8\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u7ba1\u7406\u3001\u6709\u52b9\u671f\u9650\u306e\u30c1\u30a7\u30c3\u30af\u306a\u3069\u3001\u69d8\u3005\u306a\u30b7\u30ca\u30ea\u30aa\u3067\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002\u6642\u9593\u306b\u95a2\u9023\u3059\u308b\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3084\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u5b9f\u88c5\u3059\u308b\u969b\u306b\u975e\u5e38\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u65e5\u6642\u306e\u8a08\u7b97\u3068\u6bd4\u8f03\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30af\u30a8\u30ea\u3067\u3082\u540c\u69d8\u306b\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u6307\u5b9a\u671f\u9593\u5185\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u62bd\u51fa\u3059\u308bSQL\u30af\u30a8\u30ea\u3067\u306f\u3001UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u4f7f\u3046\u3053\u3068\u3067\u52b9\u7387\u7684\u306b\u691c\u7d22\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-18\">time\u95a2\u6570\u3068strtotime\u95a2\u6570\u306e\u7d44\u307f\u5408\u308f\u305b\u6d3b\u7528<\/h2>\n\n\n\n<p>time\u95a2\u6570\u306f\u73fe\u5728\u6642\u523b\u306eUNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u63d0\u4f9b\u3057\u3066\u304f\u308c\u307e\u3059\u304c\u3001\u904e\u53bb\u3084\u672a\u6765\u306e\u7279\u5b9a\u306e\u65e5\u6642\u306b\u5bfe\u3059\u308b\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001strtotime\u95a2\u6570\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u975e\u5e38\u306b\u5f37\u529b\u3067\u3059\u3002\u3053\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u65e5\u6642\u64cd\u4f5c\u306e\u5e45\u304c\u5927\u304d\u304f\u5e83\u304c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">strtotime\u95a2\u6570\u3067\u4eba\u9593\u304c\u8aad\u3081\u308b\u65e5\u4ed8\u3092\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306b\u5909\u63db<\/h3>\n\n\n\n<p>strtotime\u95a2\u6570\u306f\u3001\u82f1\u8a9e\u306e\u81ea\u7136\u8a00\u8a9e\u8868\u73fe\u3067\u66f8\u304b\u308c\u305f\u65e5\u6642\u3092UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306b\u5909\u63db\u3057\u307e\u3059\u3002\u57fa\u672c\u7684\u306a\u69cb\u6587\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">int|false strtotime(string $datetime, ?int $baseTimestamp = null)\n<\/pre>\n\n\n\n<p>\u7b2c2\u5f15\u6570\u306e<code>$baseTimestamp<\/code>\u3092\u7701\u7565\u3059\u308b\u3068\u3001\u73fe\u5728\u6642\u523b\uff08time()\u306e\u623b\u308a\u5024\uff09\u304c\u57fa\u6e96\u3068\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=\"\">\/\/ \u7279\u5b9a\u306e\u65e5\u6642\u3092\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306b\u5909\u63db\n$timestamp = strtotime('2023-04-15 14:30:00');\necho $timestamp; \/\/ \u4f8b: 1681559400\n\n\/\/ \u5909\u63db\u7d50\u679c\u3092\u78ba\u8a8d\necho date('Y-m-d H:i:s', $timestamp); \/\/ 2023-04-15 14:30:00\n\n\/\/ \u69d8\u3005\u306a\u65e5\u4ed8\u5f62\u5f0f\u304c\u4f7f\u7528\u53ef\u80fd\n$ts1 = strtotime('15 April 2023 14:30:00');\n$ts2 = strtotime('04\/15\/2023 2:30pm');\n$ts3 = strtotime('2023.04.15 14:30');\n\n\/\/ \u3053\u308c\u3089\u306f\u540c\u3058\u6642\u523b\u3092\u8868\u3059\necho ($ts1 === $ts2 &amp;&amp; $ts2 === $ts3) ? '\u540c\u3058\u6642\u523b\u3067\u3059' : '\u7570\u306a\u308b\u6642\u523b\u3067\u3059';\n<\/pre>\n\n\n\n<p>\u6ce8\u610f\u70b9\u3068\u3057\u3066\u3001\u65e5\u4ed8\u6587\u5b57\u5217\u306e\u89e3\u91c8\u306f\u8a00\u8a9e\u8a2d\u5b9a\u3084PHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u3088\u308a\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u65e5\u4ed8\u5f62\u5f0f\u304c\u300c\u65e5\/\u6708\/\u5e74\u300d\u304b\u300c\u6708\/\u65e5\/\u5e74\u300d\u304b\u306e\u9055\u3044\u306b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u66d6\u6627\u3055\u3092\u907f\u3051\u308b\u305f\u3081\u3001ISO\u5f62\u5f0f\uff08YYYY-MM-DD\uff09\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-20\">\u76f8\u5bfe\u7684\u306a\u65e5\u6642\u6307\u5b9a\u3067\u67d4\u8edf\u306a\u65e5\u4ed8\u64cd\u4f5c<\/h3>\n\n\n\n<p>strtotime\u95a2\u6570\u306e\u5927\u304d\u306a\u7279\u5fb4\u306f\u3001\u76f8\u5bfe\u7684\u306a\u65e5\u6642\u8868\u73fe\u3092\u89e3\u91c8\u3067\u304d\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u975e\u5e38\u306b\u76f4\u611f\u7684\u304b\u3064\u67d4\u8edf\u306a\u65e5\u4ed8\u64cd\u4f5c\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u73fe\u5728\u6642\u523b\u3092\u57fa\u6e96\u306b\u3057\u305f\u76f8\u5bfe\u7684\u306a\u65e5\u6642\u6307\u5b9a\n$now = time();\n\n\/\/ \u65e5\u4ed8\u306e\u52a0\u7b97\n$tomorrow = strtotime('+1 day', $now);\n$next_week = strtotime('+1 week', $now);\n$next_month = strtotime('+1 month', $now);\n$next_year = strtotime('+1 year', $now);\n\n\/\/ \u65e5\u4ed8\u306e\u6e1b\u7b97\n$yesterday = strtotime('-1 day', $now);\n$last_week = strtotime('-1 week', $now);\n$two_months_ago = strtotime('-2 months', $now);\n\n\/\/ \u7279\u5b9a\u306e\u66dc\u65e5\u3092\u6307\u5b9a\n$next_monday = strtotime('next Monday', $now);\n$last_friday = strtotime('last Friday', $now);\n$second_tuesday = strtotime('second Tuesday', $now);\n\necho \"\u660e\u65e5: \" . date('Y-m-d', $tomorrow) . \"\\n\";\necho \"\u6765\u9031: \" . date('Y-m-d', $next_week) . \"\\n\";\necho \"\u6b21\u306e\u6708\u66dc\u65e5: \" . date('Y-m-d', $next_monday) . \"\\n\";\n<\/pre>\n\n\n\n<p>\u3053\u306e\u6a5f\u80fd\u306f\u3001\u5b9a\u671f\u7684\u306a\u30a4\u30d9\u30f3\u30c8\u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30ea\u30f3\u30b0\u3084\u3001\u671f\u65e5\u306e\u8a08\u7b97\u306a\u3069\u306b\u975e\u5e38\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u300c\u6bce\u6708\u7b2c2\u6c34\u66dc\u65e5\u300d\u306e\u3088\u3046\u306a\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3082\u7c21\u5358\u306b\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-21\">\u7279\u5b9a\u306e\u65e5\u4ed8\u3084\u6642\u523b\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<p>strtotime\u95a2\u6570\u3067\u306f\u3001\u7279\u5b9a\u306e\u65e5\u4ed8\u3084\u305d\u306e\u4e00\u90e8\u3092\u6307\u5b9a\u3057\u3066\u53d6\u5f97\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8868\u73fe\u304c\u4fbf\u5229\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6708\u306e\u6700\u521d\u3068\u6700\u5f8c\u306e\u65e5\n$first_day_of_month = strtotime('first day of this month');\n$last_day_of_month = strtotime('last day of this month');\n\n\/\/ \u7279\u5b9a\u306e\u6708\u306e\u7279\u5b9a\u306e\u65e5\n$christmas = strtotime('December 25');\n\n\/\/ \u56db\u534a\u671f\u306e\u521d\u65e5\n$q1_start = strtotime('first day of January');\n$q2_start = strtotime('first day of April');\n$q3_start = strtotime('first day of July');\n$q4_start = strtotime('first day of October');\n\n\/\/ \u55b6\u696d\u65e5\uff08\u5e73\u65e5\uff09\u306e\u8a08\u7b97\n$next_business_day = strtotime('next weekday');\n$three_business_days_later = strtotime('+3 weekdays');\n\n\/\/ \u65e5\u4ed8\u3068\u6642\u523b\u306e\u7d44\u307f\u5408\u308f\u305b\n$tomorrow_noon = strtotime('tomorrow noon');\n$sunday_midnight = strtotime('Sunday midnight');\n\necho \"\u4eca\u6708\u306e\u6700\u7d42\u65e5: \" . date('Y-m-d', $last_day_of_month) . \"\\n\";\necho \"\u30af\u30ea\u30b9\u30de\u30b9: \" . date('Y-m-d', $christmas) . \"\\n\";\necho \"\u6b21\u306e\u55b6\u696d\u65e5: \" . date('Y-m-d', $next_business_day) . \"\\n\";\n<\/pre>\n\n\n\n<p>time\u95a2\u6570\u3068strtotime\u95a2\u6570\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30ab\u30ec\u30f3\u30c0\u30fc\u6a5f\u80fd\u3001\u4e88\u7d04\u30b7\u30b9\u30c6\u30e0\u3001\u30bf\u30b9\u30af\u7ba1\u7406\u306a\u3069\u3001\u65e5\u6642\u306b\u95a2\u308f\u308b\u69d8\u3005\u306a\u6a5f\u80fd\u3092\u52b9\u7387\u7684\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306f\u6709\u52b9\u671f\u9650\u306e\u691c\u8a3c\u306b\u4f7f\u3048\u308b\u4f8b\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u73fe\u5728\u6642\u523b\u3092\u53d6\u5f97\n$now = time();\n\n\/\/ \u6709\u52b9\u671f\u9650\uff08\u4f8b\uff1a\u767b\u9332\u304b\u308930\u65e5\u9593\uff09\n$expiration_date = strtotime('+30 days', $user_registration_timestamp);\n\n\/\/ \u6709\u52b9\u671f\u9650\u306e\u30c1\u30a7\u30c3\u30af\nif ($now &gt; $expiration_date) {\n    echo \"\u6709\u52b9\u671f\u9650\u304c\u5207\u308c\u3066\u3044\u307e\u3059\";\n} else {\n    $days_left = ceil(($expiration_date - $now) \/ 86400);\n    echo \"\u6709\u52b9\u671f\u9650\u307e\u3067\u3042\u3068{$days_left}\u65e5\u3067\u3059\";\n}\n<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6a5f\u80fd\u3092\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u3067\u3001PHP\u3067\u306e\u65e5\u6642\u51e6\u7406\u306e\u53ef\u80fd\u6027\u304c\u5927\u304d\u304f\u5e83\u304c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-22\">\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u8003\u616e\u3057\u305ftime\u95a2\u6570\u306e\u6d3b\u7528\u6cd5<\/h2>\n\n\n\n<p>PHP\u306etime\u95a2\u6570\u306fUNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u8fd4\u3057\u307e\u3059\u304c\u3001\u3053\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u81ea\u4f53\u306f\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u306b\u4f9d\u5b58\u3057\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u4eba\u9593\u304c\u8aad\u3081\u308b\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308b\u969b\u3084\u3001\u7279\u5b9a\u306e\u65e5\u6642\u6587\u5b57\u5217\u304b\u3089\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u751f\u6210\u3059\u308b\u969b\u306b\u306f\u3001\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u304c\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-23\">date_default_timezone_set\u306b\u3088\u308b\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u8a2d\u5b9a<\/h3>\n\n\n\n<p>PHP\u3067\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f\u3001<code>date_default_timezone_set<\/code>\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u5185\u306e\u3059\u3079\u3066\u306e\u65e5\u6642\u95a2\u6570\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u304c\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u6771\u4eac\u306b\u8a2d\u5b9a\ndate_default_timezone_set('Asia\/Tokyo');\n\n\/\/ \u73fe\u5728\u306e\u6642\u523b\u3092\u8868\u793a\n$now = time();\necho date('Y-m-d H:i:s', $now); \/\/ \u65e5\u672c\u6642\u9593\u3067\u8868\u793a\n\n\/\/ \u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u30cb\u30e5\u30fc\u30e8\u30fc\u30af\u306b\u5909\u66f4\ndate_default_timezone_set('America\/New_York');\n\n\/\/ \u540c\u3058\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u4f7f\u7528\necho date('Y-m-d H:i:s', $now); \/\/ \u30cb\u30e5\u30fc\u30e8\u30fc\u30af\u6642\u9593\u3067\u8868\u793a\uff08\u7d0414\u6642\u9593\u306e\u5dee\uff09\n<\/pre>\n\n\n\n<p>\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u660e\u793a\u7684\u306b\u8a2d\u5b9a\u3057\u306a\u3044\u5834\u5408\u3001PHP\u306fphp.ini\u306e<code>date.timezone<\/code>\u8a2d\u5b9a\u5024\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3001PHP\u306f\u8b66\u544a\u3092\u51fa\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u672c\u756a\u74b0\u5883\u3067\u306f\u5fc5\u305a\u9069\u5207\u306a\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u4e3b\u8981\u306a\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u8b58\u5225\u5b50\u306e\u4f8b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>Asia\/Tokyo<\/code>\uff08\u65e5\u672c\uff09<\/li>\n\n\n\n<li><code>Asia\/Shanghai<\/code>\uff08\u4e2d\u56fd\uff09<\/li>\n\n\n\n<li><code>Europe\/London<\/code>\uff08\u30a4\u30ae\u30ea\u30b9\uff09<\/li>\n\n\n\n<li><code>Europe\/Paris<\/code>\uff08\u30d5\u30e9\u30f3\u30b9\uff09<\/li>\n\n\n\n<li><code>America\/New_York<\/code>\uff08\u7c73\u56fd\u6771\u90e8\uff09<\/li>\n\n\n\n<li><code>America\/Los_Angeles<\/code>\uff08\u7c73\u56fd\u897f\u90e8\uff09<\/li>\n\n\n\n<li><code>Australia\/Sydney<\/code>\uff08\u30aa\u30fc\u30b9\u30c8\u30e9\u30ea\u30a2\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u5168\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u306e\u4e00\u89a7\u306f<code>DateTimeZone::listIdentifiers()<\/code>\u3067\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-24\">\u56fd\u969b\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u6642\u523b\u51e6\u7406\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p>\u56fd\u969b\u7684\u306a\u30e6\u30fc\u30b6\u30fc\u3092\u6301\u3064\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u6642\u523b\u51e6\u7406\u304c\u8907\u96d1\u306b\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u306fUTC\u3067\u4fdd\u5b58<\/strong>: \u3059\u3079\u3066\u306e\u6642\u523b\u30c7\u30fc\u30bf\u3092UTC\uff08\u5354\u5b9a\u4e16\u754c\u6642\uff09\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\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=\"\">\/\/ \u5e38\u306bUTC\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308b\u4f8b\ndate_default_timezone_set('UTC');\n$utc_timestamp = time();\n$utc_datetime = date('Y-m-d H:i:s', $utc_timestamp);\n\n\/\/ \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308bSQL\u306e\u4f8b\n$sql = \"INSERT INTO events (event_time) VALUES ('$utc_datetime')\";\n<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u8868\u793a\u6642\u306b\u30e6\u30fc\u30b6\u30fc\u306e\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u306b\u5909\u63db<\/strong>: \u30e6\u30fc\u30b6\u30fc\u3054\u3068\u306e\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u8a2d\u5b9a\u3092\u4fdd\u5b58\u3057\u3001\u8868\u793a\u6642\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30e6\u30fc\u30b6\u30fc\u306e\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u306b\u5909\u63db\nfunction convertToUserTimezone($utc_datetime, $user_timezone) {\n    $date = new DateTime($utc_datetime, new DateTimeZone('UTC'));\n    $date-&gt;setTimezone(new DateTimeZone($user_timezone));\n    return $date-&gt;format('Y-m-d H:i:s');\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n$user_timezone = 'Asia\/Tokyo'; \/\/ \u30e6\u30fc\u30b6\u30fc\u306e\u8a2d\u5b9a\u304b\u3089\u53d6\u5f97\n$local_time = convertToUserTimezone($utc_datetime, $user_timezone);\necho \"\u3042\u306a\u305f\u306e\u30ed\u30fc\u30ab\u30eb\u6642\u9593: \" . $local_time;\n<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u5165\u529b\u6642\u3082\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u8003\u616e<\/strong>: \u30e6\u30fc\u30b6\u30fc\u304b\u3089\u306e\u65e5\u6642\u5165\u529b\u3092\u53d7\u3051\u4ed8\u3051\u308b\u969b\u3082\u3001\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u8003\u616e\u3057\u3066\u51e6\u7406\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30e6\u30fc\u30b6\u30fc\u5165\u529b\u306e\u65e5\u6642\u3092UTC\u306b\u5909\u63db\nfunction convertToUTC($local_datetime, $user_timezone) {\n    $date = new DateTime($local_datetime, new DateTimeZone($user_timezone));\n    $date-&gt;setTimezone(new DateTimeZone('UTC'));\n    return $date-&gt;format('Y-m-d H:i:s');\n}\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-25\">\u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u306b\u95a2\u3059\u308b\u6ce8\u610f\u70b9\u3068\u5bfe\u7b56<\/h3>\n\n\n\n<p>\u30b5\u30de\u30fc\u30bf\u30a4\u30e0\uff08\u590f\u6642\u9593\uff09\u306f\u591a\u304f\u306e\u56fd\u3084\u5730\u57df\u3067\u63a1\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u5e74\u306b1\u301c2\u56de\u3001\u6642\u8a08\u304c1\u6642\u9593\u524d\u5f8c\u306b\u8abf\u6574\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b58\u5728\u3057\u306a\u3044\u6642\u523b<\/strong>: \u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u958b\u59cb\u6642\u306b\u6642\u8a08\u304c\u9032\u3080\u3068\u3001\u5b58\u5728\u3057\u306a\u3044\u6642\u523b\u304c\u751f\u3058\u307e\u3059\uff08\u4f8b\uff1a2:00AM\u304b\u30893:00AM\u306b\u76f4\u63a5\u30b8\u30e3\u30f3\u30d7\uff09\u3002<\/li>\n\n\n\n<li><strong>\u91cd\u8907\u3059\u308b\u6642\u523b<\/strong>: \u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u7d42\u4e86\u6642\u306b\u6642\u8a08\u304c\u623b\u308b\u3068\u3001\u540c\u3058\u6642\u523b\u304c2\u56de\u767a\u751f\u3057\u307e\u3059\uff08\u4f8b\uff1a1:00AM\u304b\u30892:00AM\u304c2\u56de\uff09\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306b\u306f\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ DateTime\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u3066\u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u306e\u554f\u984c\u3092\u56de\u907f\nfunction isSummerTimeBoundary($datetime, $timezone) {\n    $dt = new DateTime($datetime, new DateTimeZone($timezone));\n    $timestamp = $dt-&gt;getTimestamp();\n    \n    \/\/ 1\u6642\u9593\u524d\u306e\u6642\u523b\u3092\u4f5c\u6210\n    $dt_minus_1hour = new DateTime('@' . ($timestamp - 3600));\n    $dt_minus_1hour-&gt;setTimezone(new DateTimeZone($timezone));\n    \n    \/\/ \u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306e\u5dee\u304c3600\u79d2\uff081\u6642\u9593\uff09\u3068\u7570\u306a\u308b\u5834\u5408\u3001\n    \/\/ \u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u306e\u5883\u754c\u3092\u8de8\u3044\u3067\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\n    $actual_diff = $timestamp - $dt_minus_1hour-&gt;getTimestamp();\n    return $actual_diff !== 3600;\n}\n\n\/\/ \u4f7f\u7528\u4f8b\nif (isSummerTimeBoundary('2023-03-26 02:30:00', 'Europe\/Paris')) {\n    echo \"\u3053\u306e\u6642\u523b\u306f\u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u306e\u5883\u754c\u4ed8\u8fd1\u3067\u3059\u3002\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\";\n}\n<\/pre>\n\n\n\n<p>\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3068\u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u306e\u51e6\u7406\u306f\u8907\u96d1\u3067\u3059\u304c\u3001DateTime\u30af\u30e9\u30b9\u3068DateTimeZone\u30af\u30e9\u30b9\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u591a\u304f\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002\u56fd\u969b\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u767a\u3059\u308b\u969b\u306f\u3001\u3053\u308c\u3089\u306e\u30af\u30e9\u30b9\u306e\u4f7f\u7528\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-26\">time\u95a2\u6570\u306e\u5b9f\u8df5\u7684\u30e6\u30fc\u30b9\u30b1\u30fc\u30b97\u9078<\/h2>\n\n\n\n<p>PHP\u306etime\u95a2\u6570\u306f\u3001\u305d\u306e\u30b7\u30f3\u30d7\u30eb\u3055\u304b\u3089\u975e\u5e38\u306b\u7528\u9014\u306e\u5e83\u3044\u95a2\u6570\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u5b9f\u969b\u306e\u958b\u767a\u73fe\u5834\u3067\u5f79\u7acb\u3064time\u95a2\u6570\u306e\u5b9f\u8df5\u7684\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u30927\u3064\u7d39\u4ecb\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u3092\u81ea\u5206\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u53d6\u308a\u5165\u308c\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u3067\u6a5f\u80fd\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-27\">\u30e6\u30fc\u30b6\u30fc\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u3068\u6709\u52b9\u671f\u9650\u306e\u8a2d\u5b9a<\/h3>\n\n\n\n<p>Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u6709\u52b9\u671f\u9650\u7ba1\u7406\u304c\u91cd\u8981\u3067\u3059\u3002time\u95a2\u6570\u3092\u4f7f\u3048\u3070\u3001\u7c21\u5358\u304b\u3064\u52b9\u7387\u7684\u306b\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u6709\u52b9\u671f\u9650\u3092\u5236\u5fa1\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=\"\">\/\/ \u30bb\u30c3\u30b7\u30e7\u30f3\u958b\u59cb\nsession_start();\n\n\/\/ \u30bb\u30c3\u30b7\u30e7\u30f3\u304c\u5b58\u5728\u3057\u306a\u3044\u3001\u307e\u305f\u306f\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3057\u3066\u3044\u308b\u5834\u5408\nif (!isset($_SESSION['last_activity']) || \n    (time() - $_SESSION['last_activity'] &gt; 1800)) {\n    \/\/ 30\u5206\uff081800\u79d2\uff09\u7d4c\u904e\u3067\u30bb\u30c3\u30b7\u30e7\u30f3\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\n    \n    \/\/ \u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u7834\u68c4\n    session_unset();\n    session_destroy();\n    \n    \/\/ \u30ed\u30b0\u30a4\u30f3\u30da\u30fc\u30b8\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\n    header('Location: login.php');\n    exit;\n}\n\n\/\/ \u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u66f4\u65b0\n$_SESSION['last_activity'] = time();\n\n\/\/ \u30e6\u30fc\u30b6\u30fc\u30c7\u30fc\u30bf\u3092\u8868\u793a\necho \"\u3088\u3046\u3053\u305d\u3001\" . $_SESSION['username'] . \"\u3055\u3093\";\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u3048\u3070\u3001\u9577\u6642\u9593\u64cd\u4f5c\u304c\u306a\u3044\u30e6\u30fc\u30b6\u30fc\u3092\u81ea\u52d5\u7684\u306b\u30ed\u30b0\u30a2\u30a6\u30c8\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5411\u4e0a\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-28\">\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u3084\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u8a18\u9332<\/h3>\n\n\n\n<p>\u30b7\u30b9\u30c6\u30e0\u30a4\u30d9\u30f3\u30c8\u3084\u30e6\u30fc\u30b6\u30fc\u30a2\u30af\u30b7\u30e7\u30f3\u306e\u8a18\u9332\u306f\u3001\u307b\u3068\u3093\u3069\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u5fc5\u8981\u3067\u3059\u3002time\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u6b63\u78ba\u306a\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u8a18\u9332\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function logUserAction($user_id, $action) {\n    \/\/ \u73fe\u5728\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u53d6\u5f97\n    $timestamp = time();\n    \n    \/\/ \u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3055\u308c\u305f\u65e5\u6642\uff08\u30ed\u30b0\u8868\u793a\u7528\uff09\n    $formatted_time = date('Y-m-d H:i:s', $timestamp);\n    \n    \/\/ \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u8a18\u9332\uff08\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306f\u305d\u306e\u307e\u307e\u6574\u6570\u3067\u4fdd\u5b58\uff09\n    $sql = \"INSERT INTO user_logs (user_id, action, timestamp) \n            VALUES (:user_id, :action, :timestamp)\";\n    $stmt = $pdo-&gt;prepare($sql);\n    $stmt-&gt;execute([\n        'user_id' =&gt; $user_id,\n        'action' =&gt; $action,\n        'timestamp' =&gt; $timestamp\n    ]);\n    \n    \/\/ \u30d5\u30a1\u30a4\u30eb\u306b\u3082\u30ed\u30b0\u3092\u8a18\u9332\n    $log_entry = \"[$formatted_time] User $user_id: $action\\n\";\n    file_put_contents('user_activity.log', $log_entry, FILE_APPEND);\n}\n\n\/\/ \u4f7f\u7528\u4f8b\nlogUserAction(42, '\u30ed\u30b0\u30a4\u30f3');\n<\/pre>\n\n\n\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u306fUNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u305d\u306e\u307e\u307e\u4fdd\u5b58\u3059\u308b\u3053\u3068\u3067\u3001\u5f8c\u304b\u3089\u65e5\u4ed8\u7bc4\u56f2\u3067\u306e\u691c\u7d22\u3084\u4e26\u3079\u66ff\u3048\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-29\">\u30d5\u30a1\u30a4\u30eb\u306e\u66f4\u65b0\u65e5\u6642\u3092\u5143\u306b\u3057\u305f\u51e6\u7406\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u30d5\u30a1\u30a4\u30eb\u30ad\u30e3\u30c3\u30b7\u30e5\u3084\u81ea\u52d5\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306a\u3069\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u66f4\u65b0\u65e5\u6642\u306b\u57fa\u3065\u3044\u305f\u51e6\u7406\u3092\u5b9f\u88c5\u3059\u308b\u5834\u5408\u306b\u3082time\u95a2\u6570\u304c\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function processModifiedFiles($directory, $max_age = 86400) {\n    \/\/ \u73fe\u5728\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\n    $now = time();\n    \n    \/\/ \u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5185\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u8d70\u67fb\n    $files = glob(\"$directory\/*\");\n    foreach ($files as $file) {\n        if (is_file($file)) {\n            \/\/ \u30d5\u30a1\u30a4\u30eb\u306e\u6700\u7d42\u66f4\u65b0\u65e5\u6642\u3092\u53d6\u5f97\n            $last_modified = filemtime($file);\n            \n            \/\/ \u6307\u5b9a\u671f\u9593\u5185\u306b\u66f4\u65b0\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u3092\u51e6\u7406\n            if (($now - $last_modified) &lt;= $max_age) {\n                echo \"$file \u306f24\u6642\u9593\u4ee5\u5185\u306b\u66f4\u65b0\u3055\u308c\u3066\u3044\u307e\u3059\\n\";\n                \/\/ \u3053\u3053\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u51e6\u7406\n                \n            } else {\n                echo \"$file \u306f\u66f4\u65b0\u3055\u308c\u3066\u3044\u307e\u305b\u3093\\n\";\n            }\n        }\n    }\n}\n\n\/\/ \u4f7f\u7528\u4f8b\uff1a24\u6642\u9593\u4ee5\u5185\u306b\u66f4\u65b0\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u3092\u51e6\u7406\nprocessModifiedFiles('\/path\/to\/documents');\n<\/pre>\n\n\n\n<p>\u3053\u306e\u65b9\u6cd5\u306f\u3001\u5b9a\u671f\u7684\u306a\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u53e4\u3044\u30d5\u30a1\u30a4\u30eb\u306e\u81ea\u52d5\u524a\u9664\u3001\u30d5\u30a1\u30a4\u30eb\u540c\u671f\u306a\u3069\u306e\u51e6\u7406\u306b\u5fdc\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-30\">\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6709\u52b9\u671f\u9650\u7ba1\u7406<\/h3>\n\n\n\n<p>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306b\u30c7\u30fc\u30bf\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u5834\u5408\u3001time\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6709\u52b9\u671f\u9650\u3092\u7ba1\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getPageContent($url, $cache_time = 3600) {\n    \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\n    $cache_file = 'cache\/' . md5($url) . '.cache';\n    \n    \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3057\u3001\u6709\u52b9\u671f\u9650\u5185\u3067\u3042\u308c\u3070\u4f7f\u7528\n    if (file_exists($cache_file) &amp;&amp; (time() - filemtime($cache_file) &lt; $cache_time)) {\n        return file_get_contents($cache_file);\n    }\n    \n    \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u306a\u3044\u5834\u5408\u3084\u671f\u9650\u5207\u308c\u306e\u5834\u5408\u306f\u65b0\u3057\u3044\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u53d6\u5f97\n    $content = file_get_contents($url);\n    \n    \/\/ \u53d6\u5f97\u306b\u6210\u529f\u3057\u305f\u3089\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\n    if ($content !== false) {\n        file_put_contents($cache_file, $content);\n    }\n    \n    return $content;\n}\n\n\/\/ \u4f7f\u7528\u4f8b\uff1a1\u6642\u9593\u30ad\u30e3\u30c3\u30b7\u30e5\n$content = getPageContent('https:\/\/example.com\/api\/data', 3600);\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u306f\u3001API\u30ec\u30b9\u30dd\u30f3\u30b9\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30af\u30a8\u30ea\u7d50\u679c\u3001\u52d5\u7684\u306b\u751f\u6210\u3055\u308c\u308bHTML\u306a\u3069\u3001\u69d8\u3005\u306a\u30bf\u30a4\u30d7\u306e\u30c7\u30fc\u30bf\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u9069\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-31\">\u5b9a\u671f\u7684\u306a\u30bf\u30b9\u30af\u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30ea\u30f3\u30b0<\/h3>\n\n\n\n<p>Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u7279\u5b9a\u306e\u6642\u9593\u9593\u9694\u3067\u51e6\u7406\u3092\u5b9f\u884c\u3057\u305f\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002time\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3001\u6700\u5f8c\u306e\u5b9f\u884c\u6642\u9593\u3092\u8ffd\u8de1\u3057\u3001\u6b21\u306e\u5b9f\u884c\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u6c7a\u5b9a\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 runScheduledTask($task_id, $interval = 86400) {\n    \/\/ \u30bf\u30b9\u30af\u60c5\u5831\u3092\u4fdd\u5b58\u3059\u308b\u30d5\u30a1\u30a4\u30eb\n    $task_file = \"tasks\/$task_id.task\";\n    $run_task = false;\n    \n    if (file_exists($task_file)) {\n        \/\/ \u524d\u56de\u306e\u5b9f\u884c\u6642\u9593\u3092\u53d6\u5f97\n        $last_run = (int)file_get_contents($task_file);\n        \n        \/\/ \u6307\u5b9a\u9593\u9694\u304c\u7d4c\u904e\u3057\u3066\u3044\u308c\u3070\u5b9f\u884c\n        if (time() - $last_run &gt;= $interval) {\n            $run_task = true;\n        }\n    } else {\n        \/\/ \u30bf\u30b9\u30af\u30d5\u30a1\u30a4\u30eb\u304c\u306a\u3051\u308c\u3070\u521d\u56de\u5b9f\u884c\n        $run_task = true;\n    }\n    \n    if ($run_task) {\n        \/\/ \u30bf\u30b9\u30af\u3092\u5b9f\u884c\n        echo \"\u30bf\u30b9\u30af $task_id \u3092\u5b9f\u884c\u3057\u3066\u3044\u307e\u3059...\\n\";\n        \n        \/\/ \u30bf\u30b9\u30af\u306e\u51e6\u7406\u3092\u3053\u3053\u306b\u8a18\u8ff0\n        \/\/ ...\n        \n        \/\/ \u5b9f\u884c\u6642\u9593\u3092\u8a18\u9332\n        file_put_contents($task_file, time());\n        return true;\n    }\n    \n    return false;\n}\n\n\/\/ \u4f7f\u7528\u4f8b\uff1adaily_backup \u30bf\u30b9\u30af\u309224\u6642\u9593\u3054\u3068\u306b\u5b9f\u884c\nrunScheduledTask('daily_backup', 86400);\n<\/pre>\n\n\n\n<p>\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001cron\u30b8\u30e7\u30d6\u306e\u4ee3\u66ff\u3084\u88dc\u5b8c\u3068\u3057\u3066\u4f7f\u7528\u3067\u304d\u3001\u7279\u306b\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u306a\u3069cron\u306e\u8a2d\u5b9a\u304c\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u74b0\u5883\u3067\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-32\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a08\u6e2c\u3068\u30d9\u30f3\u30c1\u30de\u30fc\u30af<\/h3>\n\n\n\n<p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u51e6\u7406\u6642\u9593\u306e\u8a08\u6e2c\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002time\u95a2\u6570\u3068microtime\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3001\u7c21\u5358\u306a\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u30b7\u30b9\u30c6\u30e0\u3092\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function benchmark($callback, $iterations = 1000) {\n    \/\/ \u958b\u59cb\u6642\u9593\u3092\u8a18\u9332\n    $start_time = microtime(true);\n    \n    \/\/ \u6307\u5b9a\u56de\u6570\u306e\u51e6\u7406\u3092\u5b9f\u884c\n    for ($i = 0; $i &lt; $iterations; $i++) {\n        $callback();\n    }\n    \n    \/\/ \u7d42\u4e86\u6642\u9593\u3092\u8a18\u9332\n    $end_time = microtime(true);\n    \n    \/\/ \u5b9f\u884c\u6642\u9593\u3092\u8a08\u7b97\n    $execution_time = $end_time - $start_time;\n    $time_per_iteration = $execution_time \/ $iterations;\n    \n    return [\n        'total_time' =&gt; $execution_time,\n        'iterations' =&gt; $iterations,\n        'time_per_iteration' =&gt; $time_per_iteration,\n        'iterations_per_second' =&gt; $iterations \/ $execution_time\n    ];\n}\n\n\/\/ \u4f7f\u7528\u4f8b\uff1a\u7570\u306a\u308b\u6587\u5b57\u5217\u9023\u7d50\u65b9\u6cd5\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03\n$concat_dot = function() {\n    $str = 'Hello' . ' ' . 'World';\n};\n\n$concat_sprintf = function() {\n    $str = sprintf('%s %s', 'Hello', 'World');\n};\n\n$result1 = benchmark($concat_dot);\n$result2 = benchmark($concat_sprintf);\n\necho \"\u30c9\u30c3\u30c8\u6f14\u7b97\u5b50: 1\u79d2\u3042\u305f\u308a \" . number_format($result1['iterations_per_second']) . \" \u56de\\n\";\necho \"sprintf\u95a2\u6570: 1\u79d2\u3042\u305f\u308a \" . number_format($result2['iterations_per_second']) . \" \u56de\\n\";\n<\/pre>\n\n\n\n<p>\u3053\u306e\u65b9\u6cd5\u3092\u4f7f\u3063\u3066\u3001\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3084\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30af\u30a8\u30ea\u3001API\u30b3\u30fc\u30eb\u306a\u3069\u3001\u69d8\u3005\u306a\u51e6\u7406\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6bd4\u8f03\u30fb\u6700\u9069\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-33\">\u30e9\u30f3\u30c0\u30e0\u306aID\u3084\u4e00\u610f\u306e\u8b58\u5225\u5b50\u306e\u751f\u6210<\/h3>\n\n\n\n<p>\u30bb\u30ad\u30e5\u30a2\u306a\u4e00\u6642\u30c8\u30fc\u30af\u30f3\u3084\u30e6\u30cb\u30fc\u30afID\u306e\u751f\u6210\u306b\u3082\u3001time\u95a2\u6570\u304c\u5f79\u7acb\u3061\u307e\u3059\u3002\u6642\u9593\u8981\u7d20\u3092\u542b\u3081\u308b\u3053\u3068\u3067\u3001\u885d\u7a81\u306e\u53ef\u80fd\u6027\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function generateUniqueToken($prefix = '') {\n    \/\/ \u73fe\u5728\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\n    $timestamp = time();\n    \n    \/\/ \u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\n    $random = bin2hex(random_bytes(16));\n    \n    \/\/ \u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3068\u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u5217\u3092\u7d44\u307f\u5408\u308f\u305b\n    $token = $prefix . $timestamp . '_' . $random;\n    \n    return $token;\n}\n\n\/\/ \u4f7f\u7528\u4f8b\uff1a\u30d1\u30b9\u30ef\u30fc\u30c9\u30ea\u30bb\u30c3\u30c8\u30c8\u30fc\u30af\u30f3\n$reset_token = generateUniqueToken('pwd_reset_');\necho \"\u30d1\u30b9\u30ef\u30fc\u30c9\u30ea\u30bb\u30c3\u30c8\u30c8\u30fc\u30af\u30f3: $reset_token\\n\";\n\n\/\/ \u4f7f\u7528\u4f8b\uff1a\u4e00\u6642\u7684\u306a\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30ea\u30f3\u30af\n$download_token = generateUniqueToken('download_');\necho \"\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30ea\u30f3\u30af: example.com\/download.php?token=$download_token\\n\";\n<\/pre>\n\n\n\n<p>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u542b\u3081\u308b\u3053\u3068\u3067\u3001\u30c8\u30fc\u30af\u30f3\u306e\u751f\u6210\u6642\u523b\u3092\u8b58\u5225\u3067\u304d\u3001\u6709\u52b9\u671f\u9650\u306e\u8a2d\u5b9a\u3084\u4e0d\u6b63\u4f7f\u7528\u306e\u691c\u51fa\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u30897\u3064\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306f\u3001PHP\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306b\u304a\u3051\u308b\u57fa\u672c\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002time\u95a2\u6570\u306e\u30b7\u30f3\u30d7\u30eb\u3055\u3068UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306e\u6271\u3044\u3084\u3059\u3055\u3092\u6d3b\u304b\u3057\u3066\u3001\u52b9\u7387\u7684\u3067\u5805\u7262\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-34\">\u307e\u3068\u3081\uff1atime\u95a2\u6570\u3092\u6d3b\u7528\u3057\u305fPHP\u306e\u65e5\u6642\u51e6\u7406\u30de\u30b9\u30bf\u30fc\u6cd5<\/h2>\n\n\n\n<p>PHP\u306e\u6642\u9593\u51e6\u7406\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001time\u95a2\u6570\u3092\u4e2d\u5fc3\u306b\u3001PHP\u3067\u306e\u65e5\u6642\u51e6\u7406\u306e\u57fa\u790e\u304b\u3089\u5b9f\u8df5\u7684\u306a\u5fdc\u7528\u307e\u3067\u5e45\u5e83\u304f\u89e3\u8aac\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u3053\u3053\u3067\u306f\u5b66\u3093\u3060\u5185\u5bb9\u3092\u632f\u308a\u8fd4\u308a\u3001\u3055\u3089\u306a\u308b\u5b66\u7fd2\u306e\u305f\u3081\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-35\">\u672c\u8a18\u4e8b\u3067\u5b66\u3093\u3060time\u95a2\u6570\u306e\u91cd\u8981\u30dd\u30a4\u30f3\u30c8<\/h3>\n\n\n\n<p>time\u95a2\u6570\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u304c\u3089\u3082\u5f37\u529b\u306a\u6a5f\u80fd\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u89e3\u8aac\u3057\u307e\u3057\u305f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>UNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306f1970\u5e741\u67081\u65e5\u304b\u3089\u306e\u7d4c\u904e\u79d2\u6570\u3092\u8868\u3059\u3001\u6642\u9593\u51e6\u7406\u306e\u57fa\u672c\u5358\u4f4d<\/li>\n\n\n\n<li>time\u95a2\u6570\u306f\u5f15\u6570\u3092\u53d6\u3089\u305a\u3001\u73fe\u5728\u306eUNIX\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u8fd4\u3059\u6700\u3082\u30b7\u30f3\u30d7\u30eb\u306a\u6642\u9593\u53d6\u5f97\u95a2\u6570<\/li>\n\n\n\n<li>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306b\u5bfe\u3059\u308b\u52a0\u6e1b\u7b97\u3067\u3001\u7c21\u5358\u306b\u672a\u6765\u3084\u904e\u53bb\u306e\u6642\u9593\u3092\u8a08\u7b97\u53ef\u80fd<\/li>\n\n\n\n<li>date\u95a2\u6570\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u4eba\u9593\u304c\u8aad\u307f\u3084\u3059\u3044\u5f62\u5f0f\u306b\u5909\u63db\u3067\u304d\u308b<\/li>\n\n\n\n<li>strtotime\u95a2\u6570\u3092\u4f7f\u3048\u3070\u3001\u81ea\u7136\u8a00\u8a9e\u7684\u306a\u65e5\u6642\u8868\u73fe\u3092\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306b\u5909\u63db\u3067\u304d\u308b<\/li>\n\n\n\n<li>\u56fd\u969b\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u306e\u9069\u5207\u306a\u8a2d\u5b9a\u3068\u7ba1\u7406\u304c\u91cd\u8981<\/li>\n\n\n\n<li>\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u5236\u5fa1\u3001\u30ed\u30b0\u8a18\u9332\u306a\u3069\u3001\u69d8\u3005\u306a\u5b9f\u8df5\u7684\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u6d3b\u7528\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u57fa\u672c\u3092\u30de\u30b9\u30bf\u30fc\u3059\u308b\u3053\u3068\u3067\u3001PHP\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u6642\u9593\u51e6\u7406\u3092\u52b9\u7387\u7684\u306b\u5b9f\u88c5\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-36\">\u3088\u308a\u9ad8\u5ea6\u306a\u65e5\u6642\u51e6\u7406\u306e\u305f\u3081\u306eDateTime\u30af\u30e9\u30b9\u306e\u7d39\u4ecb<\/h3>\n\n\n\n<p>\u57fa\u672c\u7684\u306a\u6642\u9593\u51e6\u7406\u306b\u306ftime\u95a2\u6570\u3067\u5341\u5206\u3067\u3059\u304c\u3001\u3088\u308a\u8907\u96d1\u306a\u51e6\u7406\u3084\u9ad8\u5ea6\u306a\u6a5f\u80fd\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001PHP 5.2\u4ee5\u964d\u3067\u5c0e\u5165\u3055\u308c\u305fDateTime\u30af\u30e9\u30b9\u306e\u4f7f\u7528\u3092\u304a\u52e7\u3081\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=\"\">\/\/ DateTime\u30af\u30e9\u30b9\u306e\u57fa\u672c\u7684\u306a\u4f7f\u7528\u4f8b\n$now = new DateTime(); \/\/ \u73fe\u5728\u6642\u523b\necho $now-&gt;format('Y-m-d H:i:s');\n\n\/\/ \u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u306e\u6307\u5b9a\n$tokyo = new DateTime('now', new DateTimeZone('Asia\/Tokyo'));\n$newyork = new DateTime('now', new DateTimeZone('America\/New_York'));\n\n\/\/ \u65e5\u4ed8\u306e\u52a0\u7b97\u30fb\u6e1b\u7b97\n$now-&gt;add(new DateInterval('P1D')); \/\/ 1\u65e5\u8ffd\u52a0\n$now-&gt;sub(new DateInterval('PT3H')); \/\/ 3\u6642\u9593\u524d\n\n\/\/ \u65e5\u4ed8\u306e\u5dee\u5206\u8a08\u7b97\n$diff = $now-&gt;diff($other_date);\necho \"\u5dee: {$diff-&gt;days}\u65e5 {$diff-&gt;h}\u6642\u9593\";\n\n\/\/ \u4e0d\u5909\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u3063\u305f\u5b89\u5168\u306a\u64cd\u4f5c\n$date = new DateTimeImmutable();\n$tomorrow = $date-&gt;add(new DateInterval('P1D')); \/\/ \u5143\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u5909\u66f4\u3055\u308c\u306a\u3044\n<\/pre>\n\n\n\n<p>DateTime\u30af\u30e9\u30b9\u3067\u306f\u3001\u6642\u9593\u306e\u52a0\u6e1b\u7b97\u3001\u6bd4\u8f03\u3001\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u5909\u63db\u306a\u3069\u304c\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u5f62\u3067\u5b9f\u73fe\u3067\u304d\u3001\u3088\u308a\u8907\u96d1\u306a\u65e5\u6642\u64cd\u4f5c\u3082\u76f4\u611f\u7684\u306b\u8a18\u8ff0\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-37\">PHP\u306e\u6642\u9593\u95a2\u9023\u6a5f\u80fd\u3092\u4f7f\u3044\u3053\u306a\u3059\u305f\u3081\u306e\u30ea\u30bd\u30fc\u30b9<\/h3>\n\n\n\n<p>PHP\u306e\u6642\u9593\u51e6\u7406\u306b\u3064\u3044\u3066\u3055\u3089\u306b\u5b66\u3076\u305f\u3081\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.php.net\/manual\/ja\/ref.datetime.php\">PHP\u65e5\u4ed8\/\u6642\u523b\u95a2\u6570<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.php.net\/manual\/ja\/class.datetime.php\">DateTime\u30af\u30e9\u30b9<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.php.net\/manual\/ja\/datetime.formats.php\">\u65e5\u4ed8\u5f62\u5f0f<\/a><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u63a8\u5968\u66f8\u7c4d<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u300ePHP\u5b9f\u8df5\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u300f\uff08\u5404\u7a2e\u65e5\u6642\u51e6\u7406\u306e\u5b9f\u8df5\u7684\u306a\u89e3\u8aac\u3042\u308a\uff09<\/li>\n\n\n\n<li>\u300ePHP: The Good Parts\u300f\uff08\u52b9\u7387\u7684\u306aPHP\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30c6\u30af\u30cb\u30c3\u30af\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30aa\u30f3\u30e9\u30a4\u30f3\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.tutorialspoint.com\/php\/php_calendar.htm\">PHP\u30ab\u30ec\u30f3\u30c0\u30fc\u5b9f\u88c5\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/laravel.com\/docs\/master\/helpers#time-and-date\">Laravel\u3067\u306e\u65e5\u6642\u51e6\u7406<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>time\u95a2\u6570\u3092\u542b\u3080PHP\u306e\u65e5\u6642\u51e6\u7406\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u4f7f\u7528\u6cd5\u304b\u3089\u9ad8\u5ea6\u306a\u5fdc\u7528\u307e\u3067\u69d8\u3005\u306a\u53ef\u80fd\u6027\u3092\u79d8\u3081\u3066\u3044\u307e\u3059\u3002\u57fa\u672c\u3092\u3057\u3063\u304b\u308a\u7406\u89e3\u3057\u3001\u9069\u5207\u306a\u30b1\u30fc\u30b9\u3067\u9069\u5207\u306a\u30c4\u30fc\u30eb\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u3001\u52b9\u7387\u7684\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u305f\u3081\u306e\u9375\u3068\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,63],"tags":[],"class_list":{"0":"post-3737","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\/3737","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=3737"}],"version-history":[{"count":2,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/3737\/revisions"}],"predecessor-version":[{"id":3742,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/3737\/revisions\/3742"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3737"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}