{"id":6179,"date":"2023-05-18T14:49:34","date_gmt":"2023-05-18T05:49:34","guid":{"rendered":"https:\/\/www.prime-strategy.co.jp\/column\/?p=6179"},"modified":"2026-02-17T02:00:18","modified_gmt":"2026-02-16T17:00:18","slug":"php%e9%87%8d%e9%8e%ae%e3%81%ae%e5%bb%a3%e5%b7%9d%e9%a1%9e%e6%b0%8f%e3%81%ab%e3%82%88%e3%82%8b%e3%82%b3%e3%83%a9%e3%83%a0%e3%80%8cphp%e3%81%ae%e6%9c%80%e6%96%b0%e7%8a%b6%e6%b3%81%ef%bc%9aphp-8-3","status":"publish","type":"post","link":"https:\/\/kusanagi.tokyo\/column\/archives\/column_6179","title":{"rendered":"PHP\u91cd\u93ae\u306e\u5ee3\u5ddd\u985e\u6c0f\u306b\u3088\u308b\u30b3\u30e9\u30e0\u300cPHP\u306e\u6700\u65b0\u72b6\u6cc1\uff1aPHP 8.3\u306e\u958b\u767a\u304c\u672c\u683c\u5316\u300d\uff08\u7b2c30\u56de\uff09"},"content":{"rendered":"\n

\u6628\u5e7412\u6708\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\uff0c\u7dad\u6301\u30d5\u30a7\u30fc\u30ba\u306b\u79fb\u884c\u3057\u305fPHP 8.2\u306f\uff0c\u5f15\u304d\u7d9a\u304d\u30d0\u30b0\u4fee\u6b63\u7248\u306e\u30ea\u30ea\u30fc\u30b9\u304c\u307b\u307c\u6bce\u67081\u56de\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u3066\u3044\u307e\u3059\uff0e\u307e\u305f\uff0c\u6b21\u306e\u30de\u30a4\u30ca\u30fc\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u3042\u308b PHP 8.3\u306b\u3064\u3044\u3066\u306f\uff0c\u30ea\u30ea\u30fc\u30b9\u30de\u30cd\u30fc\u30b8\u30e3\u304c\u6c7a\u5b9a\u3059\u308b\u306a\u3069\uff0c\u30ea\u30ea\u30fc\u30b9\u306b\u5411\u3051\u305f\u958b\u767a\u304c\u672c\u683c\u5316\u3057\u3066\u3044\u307e\u3059\uff0e\u4eca\u56de\u306f\uff0c\u524d\u56de\u306b\u7d9a\u304dPHP 8.3\u306b\u5411\u3051\u3066\u958b\u767a\u4e2d\u306e\u65b0\u6a5f\u80fd\u306e\u4e00\u90e8\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3059\uff0e<\/p>\n\n\n\n

<\/span>PHP 8.3\u306e\u958b\u767a\u72b6\u6cc1<\/span><\/h2>\n\n\n\n

\u3000PHP 8.3\u306e\u30ea\u30ea\u30fc\u30b9\u306b\u5411\u3051\u305f\u958b\u767a\u5de5\u7a0b\u3092\u7d71\u7387\u3059\u308b\u30ea\u30ea\u30fc\u30b9\u30de\u30cd\u30fc\u30b8\u30e3\u304cPHP\u958b\u767a\u8005\u306b\u3088\u308b\u9078\u6319\u306b\u3088\u308a4\u670816\u65e5\u306b\u6c7a\u5b9a\u3057\u307e\u3057\u305f\uff0e\u8fd1\u5e74\u306e\u958b\u767a\u4f53\u5236\u3067\u306f\uff0c\u30ea\u30ea\u30fc\u30b9\u30de\u30cd\u30fc\u30b8\u30e3\u306e\u7d4c\u9a13\u80051\u540d\u3068\u65b0\u4eba\uff12\u540d\u306e\uff13\u540d\u4f53\u5236\u3068\u3057\u3066\u3044\u307e\u3059\uff0e\u7d4c\u9a13\u8005\uff08\u30d9\u30c6\u30e9\u30f3\uff09\u67a0\u3068\u3057\u3066\u306f\uff0cPHP 8.2\u306e\u30ea\u30ea\u30fc\u30b9\u30de\u30cd\u30fc\u30b8\u30e3\u3067\u3042\u3063\u305fPierrick Charron\u6c0f\u304c\u9078\u3070\u308c\uff0c\u65b0\u4eba\u67a0\uff08\uff12\u540d\uff09\u306b\u306f\uff0cJakub Zelenka\u6c0f\u3068Eric Mann\u6c0f\u304c\u9078\u3070\u308c\u307e\u3057\u305f\uff0eJakub Zelenka\u6c0f\u306f\uff0cPHP Foundation\u304b\u3089PHP\u30b3\u30a2\u958b\u767a\u8005\u3068\u3057\u3066\u8cc7\u91d1\u30b5\u30dd\u30fc\u30c8\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\uff0e\u4eca\u5f8c\u306e\u958b\u767a\u5de5\u7a0b\u306f\uff0cJakub Zelenka\u6c0f\u3068Eric Mann\u6c0f\u306e2\u540d\u304c\u4e3b\u3068\u3057\u3066\u307e\u3068\u3081\uff0cPierrick Charron\u6c0f\u304c\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u9032\u3081\u3089\u308c\u3066\u3044\u304d\u307e\u3059\uff0e<\/p>\n\n\n\n

\u3000PHP 8.3\u306e\u6b63\u5f0f\u30ea\u30ea\u30fc\u30b9\u306f\u4eca\u5e74\uff082023\u5e74\uff09\u306e11\u670823\u65e5\u306b\u4e88\u5b9a\u3055\u308c\u3066\u304a\u308a\uff0c\u6700\u521d\u306e\u30c6\u30b9\u30c8\u7248\u3068\u3057\u3066\u03b11\u7248\u304c\uff16\u6708\uff18\u65e5\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u308b\u4e88\u5b9a\u3067\u3059\uff0e<\/p>\n\n\n\n

\u4ee5\u4e0b\uff0c\u524d\u56de\u306b\u7d9a\u3044\u3066\uff0cPHP 8.3\u5411\u3051\u306b\u5b9f\u88c5\u6e08\u307f\u306e\u6a5f\u80fd\u3092\u9806\u756a\u306b\u7d39\u4ecb\u3057\u3066\u3044\u304d\u307e\u3059\uff0e<\/p>\n\n\n\n

<\/span>\u30af\u30e9\u30b9\u5b9a\u6570\u306e\u578b\u5ba3\u8a00<\/a><\/span><\/h2>\n\n\n\n

PHP\u3067\u306f\uff0c\u30af\u30e9\u30b9\u5185\u3067PHP\u5b9a\u6570\uff08\u30af\u30e9\u30b9\u5b9a\u6570\uff09\u3092\u5ba3\u8a00\u3057\u3066\uff0c\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff0ePHP\u3067\u306f\uff0c\u5909\u6570\u306e\u578b\u6307\u5b9a\u3092\u884c\u3046\u6a5f\u80fd\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u304c\uff0c\u5f93\u6765\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306ePHP\u3067\u306f\uff0c\u30af\u30e9\u30b9\u5b9a\u6570\u306e\u578b\u6307\u5b9a\u306f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f\uff0e\u3053\u306e\u305f\u3081\uff0c\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7d99\u627f\u5148\u306e\u30af\u30e9\u30b9\u3067\u30af\u30e9\u30b9\u5b9a\u6570TEST\u306e\u578b\u3092\u914d\u5217\u304b\u3089\u6587\u5b57\u5217\u306b\u5909\u66f4\u3059\u308b\u3088\u3046\u306a\u3053\u3068\u304c\u53ef\u80fd\u3067\uff0c\u30b3\u30fc\u30c9\u306e\u898b\u901a\u3057\u304c\u60aa\u304f\u306a\u308b\u3068\u3044\u3046\u8ab2\u984c\u304c\u3042\u308a\u307e\u3057\u305f\uff0e<\/p>\n\n\n\n

<?php\nclass Foo {\n    const TEST = [];\n}\n\nclass Boo extends Foo {\n    const TEST = \"Test2\";\n}\n<\/code><\/pre>\n\n\n\n
\u5f93\u6765\u306ePHP\u306b\u304a\u3044\u3066\u3082\uff0c\u30af\u30e9\u30b9\u5168\u4f53\u307e\u305f\u306f\u30af\u30e9\u30b9\u5b9a\u6570\u306bfinal\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\uff0c\u4ee3\u5165\u3055\u308c\u308b\u521d\u671f\u5024\u3068\u540c\u3058\u578b\u3068\u5024\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306f\u53ef\u80fd\u3067\u3057\u305f\u304c\uff0c\u30af\u30e9\u30b9\u5b9a\u6570\u306e\u5ba3\u8a00\u6642\u306b\u76f4\u63a5\u578b\u6307\u5b9a\u3092\u884c\u3046\u6a5f\u80fd\u306f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f\uff0e<\/p>\n\n\n\n
\u3000PHP 8.3\u3067\u306f\uff0c\u30af\u30e9\u30b9\u5b9a\u6570\u306b\u304a\u3051\u308b\u578b\u6307\u5b9a\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\uff0e\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30af\u30e9\u30b9Foo\u306e\u30af\u30e9\u30b9\u5b9a\u6570TEST\u3092\u914d\u5217\u3068\u3057\u3066\u521d\u671f\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff0e\u7d99\u627f\u5148\u306eBoo\u30af\u30e9\u30b9\u3067\u6587\u5b57\u5217\u3068\u3057\u3066\u540c\u3058\u30af\u30e9\u30b9\u5b9a\u6570TEST\u3092\u5ba3\u8a00\u3057\u3066\u3044\u307e\u3059\uff0e<\/p>\n\n\n\n
<?php \/\/ PHP RFC: Typed class constants\nclass Foo {\n    const array TEST = [];\n}\n\nclass Boo extends Foo {\n    const string TEST = \"Test2\";\n}\n<\/code><\/pre>\n\n\n\n
\u3053\u306e\u5834\u5408\uff0c\u7d99\u627f\u5148\u306e\u30af\u30e9\u30b9\u5b9a\u6570\u306e\u578b\uff08\u6587\u5b57\u5217\uff09\u304c\u7d99\u627f\u5143\u306e\u540c\u540d\u306e\u30af\u30e9\u30b9\u5b9a\u6570\u306e\u578b\uff08\u914d\u5217\uff09\u3068\u4e00\u81f4\u3057\u306a\u3044\u305f\u3081\uff0c\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u81f4\u547d\u7684\u306a\u30a8\u30e9\u30fc\u3092\u767a\u751f\u3057\u307e\u3059\uff0e<\/p>\n\n\n\n
Fatal error: Type of Boo::TEST must be compatible with Foo::TEST of type array<\/code><\/pre>\n\n\n\n
\u30af\u30e9\u30b9\u5b9a\u6570\u306b\u304a\u3051\u308b\u578b\u6307\u5b9a\u306e\u8ffd\u52a0\u306f\uff0c\u30af\u30e9\u30b9\u306b\u95a2\u9023\u3059\u308b\u6a5f\u80fd\u3067\u3042\u308b\uff0cenum\uff0ctrait\uff0cinterface\u3067\u3082\u5229\u7528\u53ef\u80fd\u3067\u3059\uff0e\u307e\u305f\uff0c\u578b\u6307\u5b9a\u3067\u306funion\u3084intersection\uff08\u4ea4\u5dee\u578b\uff09, DNF\u8a18\u6cd5\u3082\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\uff0c\u4e00\u90e8\u306e\u578b\u5ba3\u8a00\uff08void\uff0ccallable, never\uff09\u3092\u9664\u304f\uff0c\u3059\u3079\u3066\u306e\u578b\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\uff0e<\/p>\n\n\n\n
\u4ee5\u4e0b\u306e\u3088\u3046\u306b\uff0c\u578b\u6307\u5b9a\u306b\u5408\u308f\u306a\u3044\u578b\u306e\u521d\u671f\u5024\u3092\u4ee3\u5165\u3059\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\uff0e<\/p>\n\n\n\n
<?php\nclass Foo {\n    const string TEST = [];\n}\n<\/code><\/pre>\n\n\n\n
\u3053\u306e\u5834\u5408\u306f\uff0c\u6587\u5b57\u5217\u3068\u3057\u3066\u5ba3\u8a00\u3055\u308c\u305f\u30af\u30e9\u30b9\u5b9a\u6570\u306b\u914d\u5217\u3092\u4ee3\u5165\u3057\u3066\u304a\u308a\uff0c\u578b\u304c\u4e0d\u4e00\u81f4\u3068\u306a\u3063\u3066\u3044\u307e\u3059\uff0e<\/p>\n\n\n\n
\u306a\u304a\uff0c\u7d99\u627f\u5148\u306e\u30af\u30e9\u30b9\u3067\u306f\uff0c\u30af\u30e9\u30b9\u5b9a\u6570\u306e\u578b\u306b\u4e92\u63db\u6027\u304c\u3042\u308c\u3070\uff0c\u521d\u671f\u5024\u306f\u5909\u66f4\u3067\u304d\u307e\u3059\uff0e\u4ee5\u4e0b\u306e\u4f8b\u3067\u306f\uff0c\u3068\u3082\u306b\u6587\u5b57\u5217\u3092\u4ee3\u5165\u3057\u3066\u304a\u308a\uff0c\u6b63\u3057\u304f\u52d5\u4f5c\u3057\u307e\u3059\uff0e<\/p>\n\n\n\n
<?php \/\/ PHP RFC: Typed class constants\nclass Foo {\n    const string TEST = \"Test1\";\n}\n\nclass Boo extends Foo {\n    const string TEST = \"Test2\";\n}\n<\/code><\/pre>\n\n\n\n
\u30af\u30e9\u30b9\u306e\u578b\u6307\u5b9a\u306e\u539f\u5247\u306b\u5247\u3063\u3066\u304a\u308a\uff0c\u7d99\u627f\u5148\u306b\u304a\u3051\u308b\u578b\u6307\u5b9a\u3067\u306f\uff0c\u7d99\u627f\u5143\u306b\u304a\u3051\u308b\u578b\u306e\u96c6\u5408\u3092\u540c\u7b49\u3082\u3057\u304f\u306f\u5c0f\u3055\u304f\u3059\u308b\u65b9\u5411\u306e\u6307\u5b9a\u306e\u307f\u304c\u53ef\u80fd\u3067\u3059\uff0e\u4f8b\u3048\u3070\uff0c\u4ee5\u4e0b\u306e\u4f8b\u3067\u306f\uff0c\u7d99\u627f\u5143\u306e\u30af\u30e9\u30b9\u5b9a\u6570\u306e\u578b\u5ba3\u8a00\uff08array|string\uff09\u306b\u5bfe\u3057\u3066\uff0c\u7d99\u627f\u5148\u306e\u30af\u30e9\u30b9\u5b9a\u6570\u3067\u306f\u6587\u5b57\u5217\uff08string\uff09\u3068\u3057\u3066\u5ba3\u8a00\u3055\u308c\u3066\u304a\u308a\uff0c\u96c6\u5408\u304c\u5c0f\u3055\u304f\u306a\u308b\u65b9\u5411\u3067\u3042\u308b\u305f\u3081\uff0c\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u307e\u3059\uff0e<\/p>\n\n\n\n
<?php \nclass Foo {\n    const array|string TEST = [];\n}\n\nclass Boo extends Foo {\n    const string TEST = \"Test2\";\n}\n<\/code><\/pre>\n\n\n\n
\u7d99\u627f\u5148\u306e\u30af\u30e9\u30b9Boo\u306b\u304a\u3044\u3066\u578b\u6307\u5b9a\u306e\u96c6\u5408\u3092\u5927\u304d\u304f\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\uff0e\u4f8b\u3048\u3070\uff0c\u4ee5\u4e0b\u306e\u3088\u3046\u306bstring\u306e\u4ee3\u308f\u308a\u306bstring|bool \u3092\u6307\u5b9a\u3059\u308b\u3068\u30a8\u30e9\u30fc\u3092\u767a\u751f\u3057\u307e\u3059\uff0e<\/p>\n\n\n\n
class Boo extends Foo {\n    const string|bool TEST = \"Test2\";\n}\n<\/code><\/pre>\n\n\n\n
<\/span>readonly\u30d7\u30ed\u30d1\u30c6\u30a3\u5909\u6570\u306e\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc<\/span><\/h2>\n\n\n\n
\u3000readonly\u5ba3\u8a00\u3055\u308c\u305f\u30af\u30e9\u30b9\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u5909\u6570\u306b\u95a2\u3059\u308b\u6271\u3044\u306e\u62e1\u5145\u304c\u63d0\u6848\u3055\u308c\uff0c\u63d0\u6848\u3055\u308c\u305f\uff12\u4ef6\u306e\u5185\uff0c\uff11\u4ef6\u306e\u307f\u304c\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u3059\uff0e\u4ee5\u4e0b\uff0c\u305d\u306e\u5185\u5bb9\u3092\u7d39\u4ecb\u3057\u307e\u3059\uff0e<\/p>\n\n\n\n
\u5f93\u6765\uff0creadonly\u5ba3\u8a00\u3055\u308c\u305f\u30d7\u30ed\u30d1\u30c6\u30a3\u5909\u6570\u3092\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\uff0ePHP 8.3\u3067\u306f\uff0c\u7279\u6b8a\u30e1\u30bd\u30c3\u30c9__clone()\u306e\u4e2d\u3067\u306e\u307f\u518d\u521d\u671f\u5316\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\uff0e<\/p>\n\n\n\n
\u3000\u5177\u4f53\u7684\u306a\u4f8b\u3068\u3057\u3066\uff0c\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\uff0e<\/p>\n\n\n\n
<?php\n\nclass Foo {\n    public function __construct(public readonly DateTime $bar) {}\n \n    public function __clone() {\n        $this->bar = clone $this->bar;\n    }\n}\n\n$foo = new Foo(new DateTime());\n$moo = clone $foo;\n<\/code><\/pre>\n\n\n\n
\u6700\u5f8c\u306e2\u884c\u3067\u30af\u30e9\u30b9Foo\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3057\u3066$foo\u306b\u4ee3\u5165\uff0cclone\u306b\u3088\u308a\u5909\u6570$moo\u3078\u306e\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u3092\u884c\u3063\u3066\u3044\u307e\u3059\uff0eFoo\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3059\u308b\u969b\uff0c\u5f15\u6570\u3068\u3057\u3066DateTime\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u5f15\u6570$bar\u3068\u3057\u3066\uff0c\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u30b3\u30fc\u30eb\u3055\u308c\u307e\u3059\uff08\uff14\u884c\u76ee\uff09\uff0e\u3053\u306e\u5f15\u6570\u306breadonly\u5c5e\u6027\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\uff0e\u3053\u306e\u5f15\u6570$bar\u306f\u30af\u30e9\u30b9\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u5909\u6570\u3068\u3057\u3066\u81ea\u52d5\u7684\u306b\u4fdd\u6301\u3055\u308c\u307e\u3059\uff0e<\/p>\n\n\n\n
\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u3092\u884c\u3046\u969b\uff0c\u30af\u30e9\u30b9\u306e__clone\u30e1\u30bd\u30c3\u30c9\u304c\u81ea\u52d5\u7684\u306b\u30b3\u30fc\u30eb\u3055\u308c\u307e\u3059\uff08\uff16\u884c\u76ee\uff09\uff0e\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u3067\uff0cclone\u306b\u3088\u308a\u30d7\u30ed\u30d1\u30c6\u30a3$bar\u306e\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3057\u3066\uff0c\u30b3\u30d4\u30fc\u5148\u306e\u540c\u540d\u306e\u5909\u6570$bar\u306b\u4ee3\u5165\u3057\u3066\u3044\u307e\u3059\uff087\u884c\u76ee\uff09\uff0e<\/p>\n\n\n\n
\u3053\u306e\u4f8b\u3092PHP 8.2\u3067\u5b9f\u884c\u3059\u308b\u3068\uff0c\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u3068\u306a\u308a\u307e\u3059\uff0e<\/p>\n\n\n\n
Fatal error: Uncaught Error: Cannot modify readonly property Foo::$bar<\/code><\/pre>\n\n\n\n
\u3000\u3053\u308c\u306f\uff0c7\u884c\u76ee\u3067readonly\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u5909\u6570$bar\u306e\u5024\u3092\u5909\u66f4\u3057\u3088\u3046\u3068\u3057\u305f\u305f\u3081\u3067\u3059\uff0ePHP 8.2\u307e\u3067\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u3053\u306e\u3088\u3046\u306a\u64cd\u4f5c\u306f\u8a31\u53ef\u3055\u308c\u3066\u304a\u3089\u305a\uff0c\u7d50\u679c\u3068\u3057\u3066\u30af\u30e9\u30b9\u5185\u306breadonly\u5c5e\u6027\u3092\u6709\u3059\u308b\u5834\u5408\uff0c\u305d\u306e\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u304c\u3067\u304d\u306a\u304f\u306a\u308b\u3068\u3044\u3046\u554f\u984c\u304c\u3042\u308a\u307e\u3057\u305f\uff0ePHP 8.3\u3067\u306f\uff0c\u3053\u306e\u52d5\u4f5c\u304c\u4fee\u6b63\u3055\u308c\uff0c\u4e0a\u8a18\u306e\u30a8\u30e9\u30fc\u3092\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u306a\u304f\u306a\u308a\u307e\u3057\u305f\uff0e<\/p>\n\n\n\n
\u305f\u3060\u3057\uff0c\u518d\u521d\u671f\u5316\u3067\u304d\u308b\u306e\u306f\uff0c\u4e00\u3064\u306e\u5909\u6570\u306b\u3064\u3044\u3066\uff11\u56de\u3060\u3051\u3067\uff0c\u8907\u6570\u56de\u521d\u671f\u5316\u3092\u884c\u3046\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\uff0e\u4f8b\u3048\u3070\uff0c8\u884c\u76ee\u306b\uff17\u884c\u76ee\u3068\u540c\u3058\u884c\u3092\u8ffd\u52a0\u3057\u3066\u307f\u307e\u3057\u3087\u3046\uff0e<\/p>\n\n\n\n
        $this->bar = clone $this->bar;<\/code><\/pre>\n\n\n\n
\u3059\u308b\u3068\uff0c\u4e0a\u8a18\u306ePHP 8.2\u3068\u540c\u3058\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\uff0e\u901a\u5e38\u306f\uff0c\u540c\u4e00\u306e\u5909\u6570\u306b\u3064\u3044\u3066\u8907\u6570\u56de\u521d\u671f\u5316\u3092\u884c\u3046\u3053\u3068\u306f\u60f3\u5b9a\u3055\u308c\u307e\u305b\u3093\u304c\uff0c\u6ce8\u610f\u306f\u5fc5\u8981\u3067\u3059\uff0e<\/p>\n\n\n\n
\u3000\u4eca\u56de\u306f\uff0c\u524d\u56de\u306b\u7d9a\u3044\u3066\uff0cPHP 8.3\u3067\u5c0e\u5165\u3055\u308c\u308b\u4e88\u5b9a\u306e\u65b0\u6a5f\u80fd\u306e\u4e00\u90e8\u3092\u7d39\u4ecb\u3057\u307e\u3057\u305f\uff0e\u3053\u306e\u4ed6\u306b\u3082\u3044\u304f\u3064\u304b\u306e\u6a5f\u80fd\u304c\u63d0\u6848\u3055\u308c\u3066\u304a\u308a\uff0c6\u6708\u306b\u4e88\u5b9a\u3055\u308c\u308b\u03b1\u7248\u306e\u30ea\u30ea\u30fc\u30b9\u306b\u5411\u3051\u3066\uff0c\u4e3b\u306a\u6a5f\u80fd\u304c\u51fa\u63c3\u3063\u3066\u304f\u308b\u3068\u4e88\u60f3\u3055\u308c\u307e\u3059\uff0e\u6b21\u56de\u4ee5\u964d\u3082PHP 8.3\u306e\u65b0\u6a5f\u80fd\u3092\u59cb\u3081\uff0cPHP\u95a2\u9023\u306e\u8a71\u984c\u3092\u7d39\u4ecb\u3044\u305f\u3057\u307e\u3059\uff0e<\/p>\n","protected":false},"excerpt":{"rendered":"
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Read more<\/a><\/p>\n","protected":false},"author":14,"featured_media":1280,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","footnotes":""},"categories":[15],"tags":[110],"series":[50],"journey":[99],"product":[],"class_list":["post-6179","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php","tag-technical-guides","series-php-column-hiirokawa","journey-run","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33","no-featured-image-padding"],"yoast_head":"\nPHP\u91cd\u93ae\u306e\u5ee3\u5ddd\u985e\u6c0f\u306b\u3088\u308b\u30b3\u30e9\u30e0\u300cPHP\u306e\u6700\u65b0\u72b6\u6cc1\uff1aPHP 8.3\u306e\u958b\u767a\u304c\u672c\u683c\u5316\u300d\uff08\u7b2c30\u56de\uff09 - KUSANAGI Tech Column<\/title>\n<meta name=\"description\" content=\"\u6628\u5e74\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305fPHP 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