{"id":349,"date":"2025-05-01T10:23:04","date_gmt":"2025-05-01T01:23:04","guid":{"rendered":"https:\/\/itexplore.org\/jp\/?p=349"},"modified":"2025-05-01T10:23:09","modified_gmt":"2025-05-01T01:23:09","slug":"validate-date-time-format-in-php","status":"publish","type":"post","link":"https:\/\/itexplore.org\/jp\/tips\/validate-date-time-format-in-php\/","title":{"rendered":"PHP\u3067\u6587\u5b57\u5217\u304c\u65e5\u6642\u3067\u3042\u308b\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b"},"content":{"rendered":"<p>PHP \u3067\u6587\u5b57\u5217\u304c\u65e5\u6642\u3067\u3042\u308b\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u95a2\u6570\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002PHP\u516c\u5f0f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3067<a href=\"https:\/\/www.php.net\/manual\/ja\/function.checkdate.php#113205\">glavic<\/a>\u306b\u3088\u308a\u63d0\u6848\u3055\u308c\u305f\u65b9\u5f0f\u3067\u3059\u3002<\/p><p><\/p><h2 class=\"wp-block-heading\">\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9<\/h2><div class=\"input-field-container source-code-container\"><pre class=\"wp-block-code\"><code>\/**\n * \u6587\u5b57\u5217\u304c\u65e5\u6642\u3067\u3042\u308b\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3059\n * @param string $str \u65e5\u6642\u6587\u5b57\u5217\n * @param string $format \u65e5\u6642\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\n * @return bool \u6587\u5b57\u5217\u304c\u6307\u5b9a\u3055\u308c\u305f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067\u6709\u52b9\u306a\u65e5\u6642\u306e\u5834\u5408\u306ftrue\u3001\u305d\u308c\u4ee5\u5916\u306ffalse\n *\/\nfunction validateDateTimeFormat($str, $format = 'Y-m-d H:i:s')\n{\n\t$d = DateTime::createFromFormat($format, $str);\n\treturn $d && $d->format($format) == $str;\n}\n<\/code><\/pre><a id=\"copy-source-code-PHP-validateDateTimeFormat\" class=\"action-button enable copy-source-code\" title=\"\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3057\u307e\u3059\u3002\"><i class=\"fa-regular fa-copy\"><\/i><\/a><\/div><p class=\"border-spacer\"><\/p><h2 class=\"wp-block-heading\">\u691c\u8a3c<\/h2><p>\u65e5\u6642\u6587\u5b57\u5217\u3068\u65e5\u6642\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u6307\u5b9a\u3057\u3066\u95a2\u6570\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u65e5\u6642\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u7701\u7565\u3059\u308b\u3068 \"Y-m-d H:i:s\" \u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3059\u3002<\/p><div class=\"verify-container source-code-container\"><div class=\"wp-block-buttons is-layout-flex wp-block-buttons-between\"><div><span style=\"font-weight:bold\">\u5f15\u6570\u306e\u5165\u529b<\/span><\/div><\/div><p class=\"border-spacer\" style=\"margin-top: -10px;\"><\/p><div class=\"flex-vertical-align-center-container\"><span class=\"inline-block\">validateDateTimeFormat(<\/span><div class=\"flex-vertical-align-center-container\">\"&nbsp;<div class=\"input-field-container inline-block\" style=\"width: 15rem;\"><input type=\"text\" id=\"input-str\" value=\"\" maxlength=\"128\" placeholder=\"ex)2024-04-07 15:28:34\"><a id=\"clear-str\" class=\"action-button risky-link no-disable-control\" title=\"\u65e5\u6642\u6587\u5b57\u5217\u3092\u524a\u9664\u3057\u307e\u3059\u3002\"><i class=\"fa-regular fa-circle-xmark\"><\/i><\/a><\/div>&nbsp;\"<\/div><span class=\"inline-block\">,<\/span><div class=\"flex-vertical-align-center-container\">\"&nbsp;<div class=\"input-field-container inline-block\" style=\"width: 10rem;\"><input type=\"text\" id=\"input-format\" value=\"\" maxlength=\"128\" placeholder=\"ex)Y-m-d H:i:s\"><a id=\"clear-format\" class=\"action-button risky-link no-disable-control\" title=\"\u65e5\u6642\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u524a\u9664\u3057\u307e\u3059\u3002\"><i class=\"fa-regular fa-circle-xmark\"><\/i><\/a><\/div>&nbsp;\");<\/div><\/div><p class=\"border-spacer\" style=\"margin-top: -10px;\"><\/p><div class=\"wp-block-buttons is-layout-flex wp-block-buttons-between\"><div class=\"wp-block-button tooltip-container\"><a id=\"clear-information\" class=\"wp-block-button__link wp-element-button risky-action-button\" title=\"\u5f15\u6570\u5165\u529b\u6b04\u3068\u691c\u8a3c\u7d50\u679c\u3092\u30af\u30ea\u30a2\u3057\u307e\u3059\u3002\"><i class=\"fa-solid fa-eraser\"><\/i>\u30af\u30ea\u30a2<\/a><\/div><div class=\"wp-block-button\"><a id=\"execute-function\" class=\"wp-block-button__link wp-element-button\" title=\"\u6587\u5b57\u5217\u304c\u65e5\u6642\u3067\u3042\u308b\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3059\u3002\"><i class=\"fa-solid fa-bolt\"><\/i>\u5b9f\u884c<\/a><\/div><\/div><\/div><p class=\"border-spacer\"><\/p><h3 class=\"wp-block-heading\">\u691c\u8a3c\u7d50\u679c<\/h3><div id=\"execute-function-result\" class=\"verify-container\"><\/div><p class=\"border-spacer\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u3067\u6587\u5b57\u5217\u304c\u65e5\u6642\u3067\u3042\u308b\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u95a2\u6570\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002\u65e5\u6642\u6587\u5b57\u5217\u3068\u65e5\u6642\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u6307\u5b9a\u3057\u3066\u95a2\u6570\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"author":1,"featured_media":48,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"vkexunit_cta_each_option":"","footnotes":""},"categories":[4],"tags":[9],"class_list":["post-349","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips","tag-php"],"_links":{"self":[{"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/posts\/349","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/comments?post=349"}],"version-history":[{"count":1,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/posts\/349\/revisions"}],"predecessor-version":[{"id":350,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/posts\/349\/revisions\/350"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/media\/48"}],"wp:attachment":[{"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/media?parent=349"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/categories?post=349"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itexplore.org\/jp\/wp-json\/wp\/v2\/tags?post=349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}