{"id":7731,"date":"2026-10-16T00:55:28","date_gmt":"2026-10-15T15:55:28","guid":{"rendered":"https:\/\/taitan916.info\/blog\/?p=7731"},"modified":"2026-09-09T15:06:15","modified_gmt":"2026-09-09T06:06:15","slug":"post-7731","status":"publish","type":"post","link":"https:\/\/taitan916.info\/blog\/archives\/7731","title":{"rendered":"PHP8.4 &#038; CodeIgniter4\u3067DateTimeImmutable\u30a8\u30e9\u30fc"},"content":{"rendered":"<p>CodeIgniter4.4.4\u304cPHP8.3\u3060\u3068\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u3044\u305f\u304c\u3001PHP8.4\u306e\u74b0\u5883\u3060\u3068\u300cmust be compatible with DateTimeImmutable::createFromTimestamp\u300d\u3068\u3044\u3046\u81f4\u547d\u7684\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u3002\u4ee5\u4e0b\u306b\u5bfe\u5fdc\u65b9\u6cd5\u3092\u30e1\u30e2\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u5168\u6587<\/h2>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">Fatal error: Declaration of CodeIgniter\\I18n\\TimeTrait::createFromTimestamp(int $timestamp, $timezone = null, ?string $locale = null) must be compatible with DateTimeImmutable::createFromTimestamp(int|float $timestamp): CodeIgniter\\Autoloader\\Autoloader in \/path\/to\/codeigniter4\/system\/I18n\/TimeTrait.php on line 266\r\n<\/pre>\n<p>&nbsp;<\/p>\n<h2>\u5bfe\u5fdc\u65b9\u6cd5<\/h2>\n<p>\u300c\/path\/to\/codeigniter4\/system\/I18n\/TimeTrait.php\u300d\u306e266\u884c\u76ee\u3092\u4ee5\u4e0b\u306e\u901a\u308a\u5909\u66f4\u3059\u308b\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"># \u5909\u66f4\u524d\r\npublic static function createFromTimestamp(int $timestamp, $timezone = null, ?string $locale = null)\r\n\r\n# \u5909\u66f4\u5f8c\uff08\u7b2c1\u5f15\u6570\u306e\u5ba3\u8a00\u3092\u8ffd\u52a0\uff09\r\npublic static function createFromTimestamp(int|float $timestamp, $timezone = null, ?string $locale = null)<\/pre>\n<p>&nbsp;<\/p>\n<h2>\u53c2\u8003\u30b5\u30a4\u30c8<\/h2>\n<p><a href=\"https:\/\/www.gray.me.uk\/codeigniter\/codeigniter-4-fresh-install-timetrait-error\" target=\"_blank\" rel=\"noopener\">https:\/\/www.gray.me.uk\/codeigniter\/codeigniter-4-fresh-install-timetrait-error<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>CodeIgniter4.4.4\u304cPHP8.3\u3060\u3068\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u3044\u305f\u304c\u3001PHP8 ... <\/p>\n","protected":false},"author":1,"featured_media":2517,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2,80],"tags":[],"class_list":["post-7731","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php","category-codeigniter"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"CodeIgniter4.4.4\u304cPHP8.3\u3060\u3068\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u3044\u305f\u304c\u3001PHP8.4\u306e\u74b0\u5883\u3060\u3068\u300cmust be compatible with DateTimeImmutable::createFromTimestamp\u300d\u3068\u3044\u3046\u81f4\u547d\u7684\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u3002\u4ee5\u4e0b\u306b\u5bfe\u5fdc\u65b9\u6cd5\u3092\u30e1\u30e2\u3002\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"taitan\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/taitan916.info\/blog\/archives\/7731\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"ja_JP\" \/>\n\t\t<meta property=\"og:site_name\" content=\"\u52c9\u5f37\u3057\u305f\u3053\u3068\u306e\u30e1\u30e2\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"PHP8.4 &amp; CodeIgniter4\u3067DateTimeImmutable\u30a8\u30e9\u30fc | \u52c9\u5f37\u3057\u305f\u3053\u3068\u306e\u30e1\u30e2\" \/>\n\t\t<meta property=\"og:description\" content=\"CodeIgniter4.4.4\u304cPHP8.3\u3060\u3068\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u3044\u305f\u304c\u3001PHP8.4\u306e\u74b0\u5883\u3060\u3068\u300cmust be compatible with DateTimeImmutable::createFromTimestamp\u300d\u3068\u3044\u3046\u81f4\u547d\u7684\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u3002\u4ee5\u4e0b\u306b\u5bfe\u5fdc\u65b9\u6cd5\u3092\u30e1\u30e2\u3002\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/taitan916.info\/blog\/archives\/7731\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/taitan916.info\/blog\/wp-content\/uploads\/2015\/11\/url.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/taitan916.info\/blog\/wp-content\/uploads\/2015\/11\/url.png\" \/>\n\t\t<meta property=\"og:image:width\" content=\"3000\" \/>\n\t\t<meta property=\"og:image:height\" content=\"3000\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2026-10-15T15:55:28+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-09-09T06:06:15+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary\" \/>\n\t\t<meta name=\"twitter:title\" content=\"PHP8.4 &amp; 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