{"id":20620,"date":"2018-07-24T02:30:58","date_gmt":"2018-07-24T09:30:58","guid":{"rendered":"https:\/\/kinsta.com\/?p=13663"},"modified":"2023-08-26T00:09:55","modified_gmt":"2023-08-25T15:09:55","slug":"php-7-2","status":"publish","type":"post","link":"https:\/\/kinsta.com\/jp\/blog\/php-7-2\/","title":{"rendered":"PHP 7.2\u306e\u5909\u66f4\u70b9\u306b\u3064\u3044\u3066\uff08\u73fe\u5728\u3001\u5229\u7528\u53ef\u80fd\u306b\u306a\u3063\u3066\u3044\u308b\uff09"},"content":{"rendered":"

PHP 7.2\u306f11\u670830\u65e5\u306b\u6b63\u5f0f\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3057\u305f<\/a>\u3002\u3053\u306e\u30ea\u30ea\u30fc\u30b9\u306b\u306f\u3001\u3088\u308a\u826f\u3044\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3067\u304d\u308b\u65b0\u3057\u3044\u6a5f\u80fd\u3001\u95a2\u6570\u307e\u305f\u306f\u6539\u5584\u304c\u3042\u308a\u307e\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001PHP 7.2\u306e\u6700\u3082\u8208\u5473\u6df1\u3044\u6a5f\u80fd\u306e\u3044\u304f\u3064\u304b\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n

\u66f4\u65b0\uff1a<\/strong>Kinsta\u306e\u3059\u3079\u3066\u306e\u304a\u5ba2\u69d8\u306b\u3001PHP 8.0<\/a>\u3092\u3054\u5229\u7528\u3044\u305f\u3060\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n

\u3059\u3079\u3066\u306e\u6a5f\u80fd\u306b\u3064\u3044\u3066\u306f\u3001\u300c\u3054\u610f\u898b\u3092\u304a\u805e\u304b\u305b\u304f\u3060\u3055\u3044\u3002<\/a>\u300d\u30da\u30fc\u30b8\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n

\u30b3\u30a2\u306e\u6539\u5584<\/h2>\n

\u5f15\u6570\u578b\u5ba3\u8a00<\/h3>\n

PHP 5\u4ee5\u964d\u3001\u5f15\u6570\u306e\u578b\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5024\u306e\u6307\u5b9a\u3057\u305f\u578b\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u3068\u3001\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n

\u5f15\u6570\u578b\u5ba3\u8a00<\/a>\uff08\u578b\u30d2\u30f3\u30c8<\/strong>\u3068\u3082\u3044\u3046\uff09\u306f\u95a2\u6570\u307e\u305f\u306f\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u306b\u6e21\u3055\u308c\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u308b\u5909\u6570\u306e\u578b\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p><\/blockquote>\n

\u6b21\u306b\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n

class MyClass {\n\tpublic $var = 'Hello World';\n}\n\n$myclass = new MyClass;\n\nfunction test(MyClass $myclass){\n\treturn $myclass->var;\n}\n\necho test($myclass);<\/code><\/pre>\n
\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u30c6\u30b9\u30c8<\/strong>\u95a2\u6570\u306f instanceof MyClass<\/strong>\u3092\u60f3\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u9593\u9055\u3063\u305f\u30c7\u30fc\u30bf\u578b\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306a\u81f4\u547d\u7684\u306a\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n
Fatal error: Uncaught TypeError: Argument 1 passed to test() must be an instance of MyClass<\/strong>, string given, called in \/app\/index.php on line 12 and defined in \/app\/index.php:8<\/code><\/pre>\n
PHP 7.2\u4ee5\u964d\u3067\u306f\u3001\u578b\u30d2\u30f3\u30c8<\/a>\u304c\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/strong>\u30c7\u30fc\u30bf\u578b\u3068\u3068\u3082\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u70ba\u3001\u4e00\u822c\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u95a2\u6570\u307e\u305f\u306f\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u3068\u3057\u3066\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u6b21\u306b\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n
class MyClass {\n\tpublic $var = '';\n}\n\nclass FirstChild extends MyClass {\n\tpublic $var = 'My name is Jim';\n}\nclass SecondChild extends MyClass {\n\tpublic $var = 'My name is John';\n}\n\n$firstchild = new FirstChild;\n$secondchild = new SecondChild;\n\nfunction test(object $arg) {\n\treturn $arg->var;\n}\n\necho test($firstchild);\n\necho test($secondchild);<\/code><\/pre>\n
\u3053\u306e\u4f8b\u3067\u306f\u3001\u5404\u547c\u3073\u51fa\u3057\u3067\u7570\u306a\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6e21\u3057\u3066\u30c6\u30b9\u30c8\u95a2\u6570\u30922\u56de\u547c\u3073\u51fa\u3057\u307e\u3057\u305f\u3002\u4ee5\u524d\u306ePHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3060\u3068\u4e0d\u53ef\u80fd\u306a\u3053\u3068\u3067\u3059\u3002<\/p>\n
\"Docker\u30b3\u30de\u30f3\u30c9\"
Docker\u306b\u3066PHP7.0\u3068PHP7.2\u306e\u30d2\u30f3\u30c8\u578b\u3092\u8a66\u9a13\u3059\u308b<\/figcaption><\/figure>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u623b\u308a\u5024\u306e\u578b\u5ba3\u8a00<\/h3>\n
\u5f15\u6570\u578b\u5ba3\u8a00\u304c\u95a2\u6570\u306e\u5f15\u6570\u306e\u671f\u5f85\u3055\u308c\u308b\u578b\u3092\u6307\u5b9a\u3059\u308b\u4e00\u65b9\u3001\u623b\u308a\u5024\u306e\u578b\u5ba3\u8a00\u306f\u623b\u308a\u5024\u306e\u671f\u5f85\u3055\u308c\u308b\u578b\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u623b\u308a\u5024\u306e\u578b\u5ba3\u8a00<\/a> \u95a2\u6570\u304c\u8fd4\u3059\u5909\u6570\u306e\u671f\u5f85\u3055\u308c\u308b\u578b\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p><\/blockquote>\n
PHP 7.2\u4ee5\u964d\u3067\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/strong>\u30c7\u30fc\u30bf\u578b\u306e\u623b\u308a\u5024\u578b\u5ba3\u8a00\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u6b21\u306b\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n
class MyClass {\n\tpublic $var = 'Hello World';\n}\n\n$myclass = new MyClass;\n\nfunction test(MyClass $arg) : object {\n\treturn $arg;\n}\n\necho test($myclass)->var;<\/code><\/pre>\n
\u4ee5\u524d\u306ePHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u3001\u6b21\u306e\u81f4\u547d\u7684\u306a\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\uff1a<\/p>\n
Fatal error: Uncaught TypeError: Return value of test() must be an instance of object, instance of MyClass returned in \/app\/index.php:10<\/code><\/pre>\n
\u3082\u3061\u308d\u3093\u3001PHP 7.2\u3067\u300cHello World<\/strong>\u300d\u304c\u8fd4\u308a\u307e\u3059\u3002<\/p>\n
\u30d1\u30e9\u30e1\u30fc\u30bf\u578b\u306e\u62e1\u5927<\/h3>\n
PHP\u3067\u306f\u3001\u73fe\u5728\u306e\u3068\u3053\u308d\u3001\u5b50\u30af\u30e9\u30b9\u3068\u305d\u306e\u89aa\u30af\u30e9\u30b9\u307e\u305f\u306f\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u9593\u3067\u30d1\u30e9\u30e1\u30fc\u30bf\u578b\u306e\u5206\u6563\u304c\u8a31\u53ef\u3055\u308c\u307e\u305b\u3093\u3002\u3069\u3046\u3044\u3046\u610f\u5473\u3067\u3057\u3087\u3046\u306d\u3002
\n\u4e0b\u8a18\u306e\u30b3\u30fc\u30c9\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\uff1a<\/p>\n
<?php\nclass MyClass {\n\tpublic function myFunction(array $myarray) { \/* ... *\n\/ }\n}\n\nclass MyChildClass extends MyClass {\n\tpublic function myFunction($myarray) { \/* ... *\/ }\n}<\/code><\/pre>\n
\u3053\u3053\u3067\u306f\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u7701\u7565\u3057\u307e\u3057\u305f\u3002PHP 7.0\u306a\u3089\u3001\u3053\u306e\u30b3\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3057\u307e\u3046\u3068\u6b21\u306e\u8b66\u544a\u304c\u767a\u751f\u3057\u307e\u3059\uff1a<\/p>\n
Warning: Declaration of MyChildClass::myFunction($myarray) should be compatible with MyClass::myFunction(array $myarray) in %s on line 8<\/code><\/p>\n
PHP 7.2\u4ee5\u964d\u3001\u30b3\u30fc\u30c9\u3092\u58ca\u3055\u305a\u306b\u30b5\u30d6\u30af\u30e9\u30b9\u3092\u7701\u7565\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059<\/a>\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u3059\u3079\u3066\u306e\u30b5\u30d6\u30af\u30e9\u30b9\u3092\u66f4\u65b0\u305b\u305a\u306b\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u30bf\u30a4\u30d7\u30d2\u30f3\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3088\u3046\u306b\u30af\u30e9\u30b9\u3092\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30ea\u30b9\u30c8\u69cb\u6587\u306e\u672b\u5c3e\u306e\u30ab\u30f3\u30de<\/h3>\n
\u914d\u5217\u5185\u306e\u6700\u5f8c\u306e\u9805\u76ee\u306e\u672b\u5c3e\u306e\u30ab\u30f3\u30de\u306fPHP\u3067\u6709\u52b9\u306a\u69cb\u6587<\/a>\u3067\u3042\u308a\u3001\u65b0\u3057\u3044\u9805\u76ee\u304c\u8ffd\u52a0\u3057\u3084\u3059\u3044\u304f\u306a\u308a\u3001\u30ab\u30f3\u30de\u304c\u306a\u3044\u305f\u3081\u306b\u767a\u751f\u3059\u308b\u89e3\u6790\u30a8\u30e9\u30fc\u304c\u4e88\u9632\u3067\u304d\u307e\u3059\u306e\u3067\u3001\u4f7f\u7528\u3057\u305f\u65b9\u304c\u3044\u3044\u3067\u3059<\/a>\u3002PHP 7.2\u4ee5\u964d\u3001\u30b0\u30eb\u30fc\u30d7\u5316\u3055\u308c\u305f\u540d\u524d\u7a7a\u9593<\/a>\u3067\u3082\u672b\u5c3e\u306e\u30ab\u30f3\u30de\u304c\u4f7f\u7528\u3067\u304d\u307e\u3059<\/a>\u3002<\/p>\n
\u30ea\u30b9\u30c8\u69cb\u6587\u306e\u672b\u5c3e\u306e\u30ab\u30f3\u30de<\/a>\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089\u306eRFC\u3068\u30b3\u30fc\u30c9\u306e\u4f8b\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6539\u5584<\/h2>\n
\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\u306eArgon2<\/h3>\n
Argon2<\/a>\u306f\u5f37\u529b\u306a\u30cf\u30c3\u30b7\u30f3\u30b0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3042\u308a\u30012015\u5e74\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u30fb\u30cf\u30c3\u30b7\u30f3\u30b0\u30fb\u30b3\u30f3\u30af\u30fc\u30eb\u306e\u512a\u52dd\u8005\u306b\u9078\u3070\u308c\u3001PHP 7.2\u3067\u306fBcrypt<\/a>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u3088\u308a\u5b89\u5168\u306a\u4ee3\u66ff\u624b\u6bb5\u3068\u3057\u3066\u63d0\u4f9b\u3055\u308c\u307e\u3059\u3002
\nPHP\u306e\u65b0\u3057\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u3001password_ *<\/a>\u95a2\u6570\u3067\u4f7f\u7528\u3067\u304d\u308bPASSWORD_ARGON2I<\/a>\u5b9a\u6570\u304c\u5c0e\u5165\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
password_hash('password', PASSWORD_ARGON2I);<\/code><\/pre>\n
\u4e00\u65b9\u3001Bcrypt\u306f\u30b3\u30b9\u30c8\u8981\u56e0\u30921\u3064\u3057\u304b\u51e6\u7406\u3067\u304d\u305a\u3001Argon2\u306f\u4ee5\u4e0b\u306e3\u3064\u306e\u30b3\u30b9\u30c8\u8981\u56e0\u3092\u51e6\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n