{"id":52732,"date":"2023-11-29T16:26:11","date_gmt":"2023-11-29T07:26:11","guid":{"rendered":"https:\/\/kinsta.com\/jp\/?p=52732&preview=true&preview_id=52732"},"modified":"2023-12-04T20:14:37","modified_gmt":"2023-12-04T11:14:37","slug":"php-8-3","status":"publish","type":"post","link":"https:\/\/kinsta.com\/jp\/blog\/php-8-3\/","title":{"rendered":"PHP 8.3\u306e\u65b0\u6a5f\u80fd\uff08\uff0b\u975e\u63a8\u5968\u6a5f\u80fd\u3068\u5909\u66f4\u70b9\uff09"},"content":{"rendered":"

PHP8.3\u304c\u4e88\u5b9a\u901a\u308a11\u670823\u65e5\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3057\u305f\u3002\u524d\u56de\u306ePHP 8.2\u306e\u30ea\u30ea\u30fc\u30b9<\/a>\u304b\u3089\u3001\u591a\u304f\u306e\u65b0\u6a5f\u80fd\u3068\u6539\u5584\u70b9\u304c\u76db\u308a\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u516c\u5f0f\u306b\u306f\u30de\u30a4\u30ca\u30fc\u30ea\u30ea\u30fc\u30b9\u3068\u306a\u308a\u307e\u3059\u304c\u3001\u4e2d\u306b\u306f\u65e5\u3005\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306b\u76f4\u63a5\u5f71\u97ff\u3059\u308b\u3088\u3046\u306a\u5909\u66f4\u70b9\u3082\u3002<\/p>\n

PHP 8.3\u6ce8\u76ee\u306e\u65b0\u6a5f\u80fd\u3068\u5927\u5c0f\u542b\u3081\u305f\u3055\u307e\u3056\u307e\u306a\u5909\u66f4\u70b9\u3092\u3054\u7d39\u4ecb\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

<\/div><\/kinsta-auto-toc>\n

PHP 8.3\u306e\u65b0\u6a5f\u80fd\u3068\u6539\u5584\u70b9<\/h2>\n

\u307e\u305a\u306f\u3001PHP 8.3\u306e\u4ee3\u8868\u7684\u306a\u65b0\u6a5f\u80fd\u3068\u6539\u5584\u70b9\u304b\u3089\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n

<\/div><\/kinsta-auto-toc>\n

\u578b\u4ed8\u304d\u30af\u30e9\u30b9\u5b9a\u6570<\/h3>\n

PHP 7.4<\/a>\u3067\u30af\u30e9\u30b9\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u578b\u3092\u5ba3\u8a00\u3059\u308b\u6a5f\u80fd\u304c\u5c0e\u5165\u3055\u308c\u3066\u4ee5\u964d\u3001\u3053\u306e\u578b\u4ed8\u3051\u306f\u4f55\u5e74\u306b\u3082\u308f\u305f\u3063\u3066\u6539\u5584\u3055\u308c\u3066\u304d\u305f\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u3053\u308c\u307e\u3067\u5b9a\u6570\u306b\u306f\u9069\u7528\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n

PHP8.3\u3067\u306f\u3001\u30af\u30e9\u30b9\u5b9a\u6570\uff08\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3001\u30c8\u30ec\u30a4\u30c8\u3001\u5217\u6319\u578b\u3082\u542b\u3080\uff09\u306b\u3082\u578b\u304c\u66f8\u3051\u308b\u3088\u3046\u306b\u3002\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u610f\u56f3\u3057\u305f\u6700\u521d\u306e\u5ba3\u8a00\u304b\u3089\u305a\u308c\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u4ee5\u4e0b\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f7f\u7528\u3057\u305f\u7c21\u5358\u306a\u4f8b\u3067\u3059\u3002<\/p>\n

\/\/ \u826f\u3044\u4f8b\ninterface ConstTest {\n    \/\/ \u5ba3\u8a00\u3055\u308c\u305f\u578b\u3068\u5024\u306f\u4e21\u65b9\u3068\u3082\u6587\u5b57\u5217\n    const string VERSION = \"PHP 8.3\";\n}\n\n\/\/ \u60aa\u3044\u4f8b\ninterface ConstTest {\n    \/\/ \u6700\u521d\u306e\u5ba3\u8a00\u306e\u578b\u3068\u5024\u304c\u4e0d\u4e00\u81f4\n    const float VERSION = \"PHP 8.3\";\n}<\/code><\/pre>\n
\u578b\u4ed8\u304d\u30af\u30e9\u30b9\u5b9a\u6570<\/a>\u306e\u672c\u9818\u304c\u767a\u63ee\u3055\u308c\u308b\u306e\u306f\u3001\u30d9\u30fc\u30b9\u3068\u306a\u308b\u5ba3\u8a00\u304b\u3089\u6d3e\u751f\u3057\u305f\u30af\u30e9\u30b9\u3092\u6271\u3046\u5834\u5408\u3067\u3059\u3002\u5b50\u30af\u30e9\u30b9\u304c\u5b9a\u6570\u306b\u65b0\u3057\u3044\u5024\u3092\u4ee3\u5165\u3059\u308b\u3053\u3068\u306f\u3088\u304f\u3042\u308a\u307e\u3059\u304c\u3001 PHP 8.3\u3067\u306f\u3001\u8aa4\u3063\u3066\u578b\u3092\u5909\u66f4\u3057\u3066\u6700\u521d\u306e\u5ba3\u8a00\u3068\u4e92\u63db\u6027\u304c\u306a\u304f\u306a\u308b\u3053\u3068\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
class ConstTest {\n    const string VERSION = \"PHP 8.2\";\n}\n\nclass MyConstTest extends ConstTest {\n\n    \/\/ \u826f\u3044\u4f8b\n    \/\/\u3053\u3053\u3067VERSION\u306e\u5024\u3092\u5909\u66f4\u3057\u3066\u3082OK\n    const string VERSION = \"PHP 8.3\";\n\n    \/\/ \u60aa\u3044\u4f8b\n    \/\/ \u578b\u304c\u30d9\u30fc\u30b9\u3068\u306a\u308b\u30af\u30e9\u30b9\u3067\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u306f\u305d\u308c\u3092\u5ba3\u8a00\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\n    const VERSION = \"PHP 8.3\";\n\n    \/\/ \u60aa\u3044\u4f8b\n    \/\/ \u3053\u306e\u5834\u5408\u3001\u65b0\u3057\u3044\u578b\u3068\u305d\u306e\u5024\u306b\u4e92\u63db\u6027\u304c\u3042\u3063\u3066\u3082\n    \/\/ \u30d9\u30fc\u30b9\u30af\u30e9\u30b9\u3067\u5ba3\u8a00\u3055\u308c\u305f\u578b\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\n    const float VERSION = 8.3;\n}<\/code><\/pre>\n
\u30af\u30e9\u30b9\u306e\u5b9a\u6570\u306b\u4ee3\u5165\u3055\u308c\u308b\u578b\u306f\u3001\u8907\u6570\u306e\u578b\u3092\u300c\u7d5e\u308a\u8fbc\u3080\u300d\u969b\u3084\u3001\u4e92\u63db\u6027\u306e\u3042\u308b\u578b\u3092\u67d4\u8edf\u306b\u4f7f\u7528\u3059\u308b\u969b\u306b\u306f\u5909\u5316\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n
class ConstTest {\n    const string|float VERSION = \"PHP 8.2\";\n}\n\nclass MyConstTest extends ConstTest {\n\n    \/\/ \u826f\u3044\u4f8b\n    \/\/ \u3053\u3053\u3067\u306f\u578b\u5ba3\u8a00\u3092\u6587\u5b57\u5217\u304b\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u306b\u7d5e\u3063\u3066\u3082OK\n    const string VERSION = \"PHP 8.3\";\n    const float VERSION = 8.3;\n\n    \/\/ \u826f\u3044\u4f8b\n    \/\/ \u5024\u304cint\u578b\u306b\u306a\u308a\u5f97\u308b\uff08float\u3068\u4e92\u63db\u6027\u306f\u3042\u308b\uff09\n    const float VERSION = 8;\n\n    \/\/ \u60aa\u3044\u4f8b\n    \/\/ \u3053\u3053\u3067\u578b\u306e\u9078\u629e\u80a2\u3092int\u578b\u306b\u5e83\u3052\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\n    const string|float|int VERSION = 8;\n}<\/code><\/pre>\n
\u306a\u304a\u3001\u623b\u308a\u5024\u3092\u691c\u8a3c\u3059\u308b\u969b\u306b\u4ed6\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308bvoid<\/code>\u3068never<\/code>\u306e2\u3064\u306e\u578b\u306f\u3001\u30af\u30e9\u30b9\u5b9a\u6570\u306e\u578b\u3068\u3057\u3066\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n
json_validate()<\/code>\u95a2\u6570<\/h3>\n
JSON\u3067\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u6271\u3046\u969b\u3001\u6587\u5b57\u5217\u304c\u69cb\u6587\u7684\u306b\u59a5\u5f53\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u304c\u4e8b\u524d\u306b\u308f\u304b\u308b\u3068\u52b9\u7387\u7684\u3067\u3059\u3002<\/p>\n
\u4ee5\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u3001json_decode()<\/code>\u95a2\u6570\u3092\u4f7f\u3063\u3066\u3001JSON\u30c7\u30fc\u30bf\u3092\u9023\u60f3\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5909\u63db\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\u9593\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u306a\u3044\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u306e\u304c\u901a\u4f8b\u3067\u3057\u305f\u3002\u3057\u304b\u3057json_validate()<\/a><\/code>\u95a2\u6570\u304c\u5c0e\u5165\u3055\u308c\u305f\u3053\u3068\u3067\u3001\u4eca\u5f8c\u306f\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u69cb\u9020\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30e1\u30e2\u30ea\u3092\u6d88\u8cbb\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u30a8\u30e9\u30fc\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u307e\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306bJSON\u6587\u5b57\u5217\u3092\u691c\u8a3c\u3059\u308b\u306e\u304c\u4e00\u822c\u7684\u3067\u3057\u305f\u3002<\/p>\n
$obj = json_decode($maybeJSON);\n\nif (json_last_error() === JSON_ERROR_NONE) {\n    \/\/ $obj\u3092\u4f7f\u3063\u3066\u4f55\u304b\u3057\u3089\u306e\u64cd\u4f5c\u3092\u5b9f\u884c\n}<\/code><\/pre>\n
\u4e0a\u8a18\u306e\u4f8b\u3067$obj<\/code>\u3092\u4f7f\u7528\u3057\u3066\u4f55\u3082\u884c\u308f\u306a\u3044\u5834\u5408\u3001\u5143\u306eJSON\u6587\u5b57\u5217\u306e\u59a5\u5f53\u6027\u3092\u691c\u8a3c\u3059\u308b\u305f\u3081\u3060\u3051\u306b\u591a\u304f\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u6d6a\u8cbb\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002PHP8.3\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u6d88\u8cbb\u30e1\u30e2\u30ea\u3092\u524a\u6e1b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
if (json_validate($maybeJSON)) {\n    \/\/ $maybeJSON\u3092\u4f7f\u3063\u3066\u4f55\u304b\u3057\u3089\u306e\u64cd\u4f5c\u3092\u5b9f\u884c\n}<\/code><\/pre>\n
\u6ce8<\/strong>\uff09json_validate()<\/code>\u3092\u4f7f\u7528\u3057\u3001\u3059\u3050\u306bjson_decode()<\/code>\u3067\u30c7\u30fc\u30bf\u3092\u5b9f\u884c\u3059\u308b\u5834\u5408\u306b\u306f\u3001\u3042\u307e\u308a\u3053\u306e\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u610f\u5473\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u4ee3\u308f\u308a\u306b\u3001JSON\u3092\u3069\u3053\u304b\u306b\u4fdd\u5b58\u3057\u305f\u308a\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u3068\u3057\u3066\u914d\u4fe1\u3057\u305f\u308a\u3059\u308b\u524d\u306b\u3001\u65b0\u3057\u3044\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066JSON\u3092\u691c\u8a3c\u3059\u308b\u30b1\u30fc\u30b9\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n
readonly<\/code>\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u30c7\u30a3\u30fc\u30d7\u30af\u30ed\u30fc\u30f3<\/h3>\n
PHP 8.1<\/a>\u3067\u306f\u3001\u500b\u3005\u306e\u30af\u30e9\u30b9\u30d7\u30ed\u30d1\u30c6\u30a3\u3092readonly<\/code>\u3068\u3057\u3066\u5ba3\u8a00\u3059\u308b\u6a5f\u80fd\u304c\u767b\u5834\u3057\u3001PHP 8.2\u3067\u306f\u3001\u305d\u306e\u5c5e\u6027\u3092\u30af\u30e9\u30b9\u5168\u4f53<\/a>\u306b\u5272\u308a\u5f53\u3066\u308b\u6a5f\u80fd\u304c\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u306f\u3001\u3053\u306e\u3088\u3046\u306a\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u542b\u3080\u30af\u30e9\u30b9\u3092\u6271\u3046\u969b\u306b\u5236\u7d04\u304c\u751f\u3058\u3001\u6642\u306b\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u4f5c\u696d\u306e\u59a8\u3052\u306b\u306a\u308b\u3068\u3044\u3046\u8ab2\u984c\u304c\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n
 readonly<\/code>\u306e\u6319\u52d5\u3092\u5909\u66f4<\/a>\u3059\u308b\u305f\u3081\u306eRFC\u3067\u306f\u3001\u4ee5\u4e0b2\u3064\u306e\u63d0\u6848\u304c\u51fa\u3066\u3044\u307e\u3059\u3002<\/p>\n
    \n
  1. readonly<\/code>\u3067\u306a\u3044\u30af\u30e9\u30b9\u304c\u305d\u3046\u3067\u3042\u308b\u30af\u30e9\u30b9\u3092\u62e1\u5f35\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b<\/li>\n
  2. \u8907\u88fd\u4f5c\u6210\u6642\u306breadonly<\/code>\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u518d\u521d\u671f\u5316\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b<\/li>\n<\/ol>\n
    \u4eca\u56de\u306e\u30ea\u30ea\u30fc\u30b9\u3067\u63a1\u7528\u3055\u308c\u305f\u306e\u306f2\u3064\u76ee\u306e\u63d0\u6848\u3067\u3001readonly<\/code>\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u6301\u3064\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092__clone<\/code>\u30de\u30b8\u30c3\u30af\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u518d\u521d\u671f\u5316\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\uff08__clone<\/code>\u5185\u304b\u3089\u547c\u3073\u51fa\u3055\u308c\u308b\u95a2\u6570\u3092\u542b\u3080\uff09\u3002<\/p>\n
    \u305d\u306e\u52d5\u4f5c\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\uff08RFC\u306e\u30b3\u30fc\u30c9\u4f8b\uff09\u3002<\/p>\n
    class Foo {\n    public function __construct(\n        public readonly DateTime $bar,\n        public readonly DateTime $baz\n    ) {}\n \n    public function __clone() {\n        \/\/ clone\u304c\u5b9f\u884c\u3055\u308c\u308b\u3068\u3001$bar\u304c\u65b0\u305f\u306aDateTime\u3092\u53d6\u5f97\n        $this->bar = clone $this->bar; \n\n        \/\/ \u3053\u306e\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\n        $this->cloneBaz();\n    }\n \n    private function cloneBaz() {\n       \/\/ \u3053\u308c\u306f __clone\u5185\u304b\u3089\u547c\u3073\u51fa\u3055\u308c\u305f\u5834\u5408\u306b\u59a5\u5f53\n        unset($this->baz); \n    }\n}\n \n$foo = new Foo(new DateTime(), new DateTime());\n$foo2 = clone $foo;<\/code><\/pre>\n
    #[\\Override]<\/code>\u5c5e\u6027<\/h3>\n
    PHP\u3067\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3059\u308b\u969b\u3001\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3067\u540d\u4ed8\u3051\u3089\u308c\u305f\u95a2\u6570\u306e\u8a73\u7d30\u306a\u6a5f\u80fd\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3059\u308b\u969b\u3001\u5b50\u30af\u30e9\u30b9\u3067\u540c\u3058\u540d\u524d\u3067\u4e92\u63db\u6027\u306e\u3042\u308b\u30b7\u30b0\u30cd\u30c1\u30e3\u3092\u6301\u3064\u5225\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3067\u3001\u89aa\u95a2\u6570\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\uff08\u518d\u5b9a\u7fa9\uff09\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
    \u3053\u306e\u72b6\u6cc1\u306b\u304a\u3051\u308b\u61f8\u5ff5\u70b9\u3068\u3057\u3066\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u95a2\u6570\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308b\u3064\u3082\u308a\u3001\u3042\u308b\u3044\u306f\u89aa\u95a2\u6570\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u3066\u3044\u308b\u3064\u3082\u308a\u3067\u3082\u3001\u5b9f\u969b\u306b\u306f\u3067\u304d\u3066\u3044\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5b50\u30af\u30e9\u30b9\u306e\u95a2\u6570\u540d\u3092\u8aa4\u3063\u3066\u5165\u529b\u3057\u305f\u308a\u3001\u89aa\u30af\u30e9\u30b9\u306e\u30b3\u30fc\u30c9\u3067\u95a2\u6570\u3092\u524a\u9664\u3057\u3066\u3057\u307e\u3063\u305f\u308a\u3001\u540d\u524d\u304c\u5909\u66f4\u3055\u308c\u305f\u308a\u3057\u305f\u3053\u3068\u3067\u3001\u307e\u3063\u305f\u304f\u5225\u306e\u3082\u306e\u3092\u4f5c\u6210\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u3082\u3042\u308a\u5f97\u307e\u3059\u3002<\/p>\n
    PHP 8.3\u3067\u306f\u3001#[\\Override]<\/code>\u5c5e\u6027\u306e\u767b\u5834\u306b\u3088\u308a\u3001\u95a2\u6570\u304c\u30b3\u30fc\u30c9\u5185\u3067\u660e\u78ba\u306b\u4f55\u3089\u304b\u306e\u7cfb\u7d71\u3092\u6301\u305f\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u3088\u3046\u306b\u3067\u304d\u307e\u3059\u3002<\/p>\n
    \u4ee5\u4e0b\u3001\u7c21\u5358\u306a\u4f8b\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n
    class A {\n    protected function ovrTest(): void {}\n}\n\n\/\/ ovrTest()\u306f\u89aa\u30af\u30e9\u30b9\u306b\u3042\u308b\u305f\u3081\n\/\/ \u3053\u308c\u306f\u6a5f\u80fd\u3059\u308b\nclass B extends A {\n    #[\\Override]\n    public function ovrTest(): void {}\n}\n\n\/\/ ovrBest()\u304c\u89aa\u306b\u306a\u3044\u305f\u3081\n\/\/ \u3053\u308c\u306f\u5931\u6557\uff08\u5165\u529b\u30df\u30b9\uff09\nclass C extends A {\n    #[\\Override]\n    public function ovrBest(): void {}\n}<\/code><\/pre>\n
    \u30af\u30e9\u30b9\u5b9a\u6570\u304a\u3088\u3073\u5217\u6319\u578b\u30e1\u30f3\u30d0\u306e\u52d5\u7684\u306a\u53d6\u5f97<\/h3>\n
    PHP\u30b3\u30fc\u30c9\u306e\u4ed6\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u306f\u7570\u306a\u308a\u3001\u3053\u308c\u307e\u3067\u30af\u30e9\u30b9\u5b9a\u6570\u3084\u5217\u6319\u578b\u3092\u5909\u6570\u540d\u3067\u53d6\u5f97\u3059\u308b\u306e\u306f\u3084\u3084\u8907\u96d1\u3067\u3057\u305f\u3002PHP 8.3\u3088\u308a\u3082\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u3001constant()<\/code>\u95a2\u6570\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n
    class MyClass {\n    public const THE_CONST = 9;\n}\n\nenum MyEnum int {\n    case FirstMember = 9;\n    case SecondMember = 9;\n}\n\n$constantName = 'THE_CONST';\n$memberName = 'FirstMember';\n\necho constant('MyClass::' . $constantName);\necho constant('MyEnum::' . $memberName)->value;<\/code><\/pre>\n
    PHP 8.3\u306b\u8ffd\u52a0\u3055\u308c\u305f\u5b9a\u6570\u306e\u52d5\u7684\u53d6\u5f97<\/a>\u6a5f\u80fd\u3092\u4f7f\u7528\u3059\u308c\u3070\u3001\u4e0a\u8a18\u306e\u3088\u3046\u306a\u30af\u30e9\u30b9\u5b9a\u6570\u3084\u5217\u6319\u578b\u3092\u4f7f\u3063\u3066\u540c\u3058\u7d50\u679c\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
    $constantName = 'THE_CONST';\n$memberName = 'FirstMember';\n\necho MyClass::{$constantName};\necho MyEnum::{$memberName}->value;<\/code><\/pre>\n
    getBytesFromString()<\/code>\u95a2\u6570<\/h3>\n
    \u4e8b\u524d\u306b\u627f\u8a8d\u3055\u308c\u305f\u6587\u5b57\u306e\u96c6\u5408\u3092\u4f7f\u7528\u3057\u3066\u3001\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u3092\u751f\u6210\u3057\u305f\u3044\u3068\u601d\u3063\u305f\u3053\u3068\u304c\u3042\u308b\u65b9\u306f\u591a\u3044\u306f\u305a\u3067\u3059\u3002PHP 8.3\u3067\u306f\u3001Random\u62e1\u5f35\u30e2\u30b8\u30e5\u30fc\u30eb\u306bgetBytesFromString()<\/a><\/code>\u95a2\u6570\u304c\u5c0e\u5165\u3055\u308c\u3001\u3053\u308c\u304c\u5b9f\u73fe\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n
    \u3053\u306e\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u3001\u30bd\u30fc\u30b9\u3068\u306a\u308b\u6587\u5b57\u5217\u3092\u6e21\u3057\u3066\u4f7f\u7528\u3057\u305f\u3044\u6587\u5b57\u6570\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u6307\u5b9a\u3057\u305f\u9577\u3055\u306b\u9054\u3059\u308b\u307e\u3067\u7121\u4f5c\u70ba\u306b\u6587\u5b57\u5217\u304b\u3089\u30d0\u30a4\u30c8\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n
    \u7c21\u5358\u306a\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
    $rando = new Random\\Randomizer();\n$alpha = 'ABCDEFGHJKMNPQRSTVWXYZ';\n\n$rando->getBytesFromString($alpha, 6); \/\/  \"MBXGWL\"\n$rando->getBytesFromString($alpha, 6); \/\/  \"LESPMG\"\n$rando->getBytesFromString($alpha, 6); \/\/  \"NVHWXC\"<\/code><\/pre>\n
    \u8981\u6c42\u3055\u308c\u305f\u30e9\u30f3\u30c0\u30e0\u306a\u51fa\u529b\u306e\u9577\u3055\u304c\u3001\u5165\u529b\u6587\u5b57\u5217\u3088\u308a\u3082\u9577\u3044\u30d0\u30a4\u30c8\u6570\u306b\u306a\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n
    $rando = new Random\\Randomizer();\n$nums = '123456';\n\n$rando->getBytesFromString($nums, 10); \/\/  \"2526341615\"<\/code><\/pre>\n
    \u4e00\u610f\u306e\u6587\u5b57\u304b\u3089\u306a\u308b\u5165\u529b\u6587\u5b57\u5217\u3067\u306f\u3001\u30e9\u30f3\u30c0\u30e0\u306a\u7d50\u679c\u304c\u540c\u3058\u7d50\u679c\u3067\u9078\u629e\u3055\u308c\u307e\u3059\u304c\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3001\u5165\u529b\u6587\u5b57\u5217\u306e\u4e2d\u3067\u4ed6\u306e\u6587\u5b57\u3088\u308a\u3082\u591a\u304f\u51fa\u73fe\u3059\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u91cd\u307f\u4ed8\u3051\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
    $rando = new Random\\Randomizer();\n$weighted = 'AAAAA12345';\n\n$rando->getBytesFromString($weighted, 5); \/\/  \"1AA53\"\n$rando->getBytesFromString($weighted, 10); \/\/  \"42A5A1AA3A\"<\/code><\/pre>\n
    getFloat()<\/code>\u304a\u3088\u3073nextFloat()<\/code>\u95a2\u6570<\/h3>\n
    Random\u62e1\u5f35\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u6539\u5584\u3068\u3057\u3066\u3001\u30e9\u30f3\u30c0\u30e0\u306a\u6d6e\u52d5\u5c0f\u6570\u70b9\u5024\u3092\u751f\u6210\u3059\u308b\u95a2\u6570\u3001getFloat()<\/code>\u3068nextFloat()<\/code>\u3082\u5c0e\u5165\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
    \u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
    $rando = new Random\\Randomizer();\n\n\/\/ \u6700\u5c0f\u50240\u304b\u3089\u6700\u5927\u50245\u307e\u3067\u306e\n\/\/  float\u5024\u3092\u751f\u6210\u3059\u308b\n$rando->getFloat(0,5); \/\/ 2.3937446906217<\/code><\/pre>\n
    getFloat()<\/code>\u3067\u306f\u3001\u6700\u5c0f\u5024\u3068\u6700\u5927\u5024\u306e\u5f8c\u306b3\u3064\u76ee\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3082\u6307\u5b9a\u53ef\u80fd\u3067\u3059\u3002Random\\IntervalBoundary<\/strong>\u5217\u6319\u578b\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u6700\u5c0f\u5024\u3068\u6700\u5927\u5024\u305d\u306e\u3082\u306e\u3092\u95a2\u6570\u3067\u8fd4\u3059\u304b\u3069\u3046\u304b\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
    \u30eb\u30fc\u30eb\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n