{"id":23612,"date":"2019-07-15T11:55:06","date_gmt":"2019-07-15T18:55:06","guid":{"rendered":"https:\/\/kinsta.com\/?p=46699"},"modified":"2023-09-05T14:31:40","modified_gmt":"2023-09-05T05:31:40","slug":"php-7-4","status":"publish","type":"post","link":"https:\/\/kinsta.com\/jp\/blog\/php-7-4\/","title":{"rendered":"PHP 7.4\u306e\u65b0\u6a5f\u80fd\uff08\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308b\u3082\u306e\u3001\u6a5f\u80fd\u3001\u30b9\u30d4\u30fc\u30c9\uff09"},"content":{"rendered":"<p>PHP 7\u306e\u6b21\u306e\u30de\u30a4\u30ca\u30fc\u30ea\u30ea\u30fc\u30b9\u3067\u3042\u308bPHP 7.4\u306f\u30012019\u5e7411\u670828\u65e5\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u4eca\u65e5\u306f\u3001PHP\u3092\u3088\u308a\u901f\u304f\u3088\u308a\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u3082\u306e\u306b\u3057\u305f\u6700\u3082\u30a8\u30ad\u30b5\u30a4\u30c6\u30a3\u30f3\u30b0\u306a\u65b0\u3057\u3044\u6a5f\u80fd\u306b\u3064\u3044\u3066\u3054\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u6700\u65b0\u60c5\u5831<\/strong>\uff09\u73fe\u5728\u3001<a href=\"https:\/\/kinsta.com\/jp\/changelog\/php-8-1\/\">PHP 8.1\uff08\u6b63\u5f0f\u30ea\u30ea\u30fc\u30b9\uff09<\/a>\u304c\u3059\u3079\u3066\u306e\u30d7\u30e9\u30f3\u3067\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u304a\u308a\u3001PHP 7.4\u306e\u30b5\u30dd\u30fc\u30c8\u306f\u7d42\u4e86\u3057\u3066\u3044\u307e\u3059\u3002Kinsta\u304c\u30b5\u30dd\u30fc\u30c8\u3059\u308bPHP\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u30017.4, 8.0, 8.1, 8.2, 8.3, 8.4 , 8.5\u3067\u3059\u3002<\/p>\n<p>PHP 7.4\u304c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30b3\u30fc\u30c9\u306e\u8aad\u307f\u3084\u3059\u3055\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u305f\u3068\u3057\u3066\u3082\u3001<a href=\"https:\/\/wiki.php.net\/rfc\/jit\">JIT\u306e\u8ffd\u52a0<\/a>\u306e\u63d0\u6848\u306f\u3059\u3067\u306b\u627f\u8a8d\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001PHP\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u30de\u30a4\u30eb\u30b9\u30c8\u30fc\u30f3\u3068\u306a\u308b\u306e\u306f\u660e\u3089\u304b\u306b<a href=\"https:\/\/kinsta.com\/jp\/blog\/php-8\/\">PHP 8<\/a>\u3067\u3059\u3002<\/p>\n<p>\u3068\u306b\u304b\u304f\u3001\u4eca\u65e5\u306fPHP 7.4\u306b\u671f\u5f85\u3057\u3066\u3044\u308b\u6700\u3082\u8208\u5473\u6df1\u3044\u6a5f\u80fd\u3068\u5909\u66f4\u70b9\u306e\u3044\u304f\u3064\u304b\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\u3061\u306a\u307f\u306b\u3001\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u306f\u4e0b\u8a18\u306e\u3068\u304a\u308a\u3067\u3057\u305f\u3002<\/p>\n<ul>\n<li>2019\u5e746\u67086\u65e5\uff1aPHP 7.4 Alpha 1<\/li>\n<li>2019\u5e747\u670818\u65e5\uff1aPHP 7.4 Beta 1 \uff1a\u6a5f\u80fd\u30d5\u30ea\u30fc\u30ba<\/li>\n<li>2019\u5e7411\u670828\u65e5\uff1aPHP 7.4 GA\u30ea\u30ea\u30fc\u30b9<\/li>\n<\/ul>\n<p><a href=\"https:\/\/wiki.php.net\/rfc#php_74\">\u516c\u5f0f\u306eRFC\u30da\u30fc\u30b8\u3067<\/a>\u6a5f\u80fd\u3068\u5909\u66f4\u70b9\u306e\u5b8c\u5168\u306a\u30ea\u30b9\u30c8\u3082\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<br \/>\n<div><\/div><kinsta-auto-toc heading=\"Table of Contents\" exclude=\"last\" list-style=\"arrow\" selector=\"h2\" count-number=\"-1\"><\/kinsta-auto-toc><\/p>\n<h2>PHP 7.4\u306e\u65b0\u6a5f\u80fd<\/h2>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001PHP 7.4\u306e\u6700\u7d42\u30ea\u30ea\u30fc\u30b9\u306e\u4e88\u5b9a\u3055\u308c\u3066\u3044\u308b\u5909\u66f4\u70b9\u3068\u65b0\u6a5f\u80fd\u306e\u4e00\u90e8\u306b\u3064\u3044\u3066\u3054\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<div><\/div><kinsta-auto-toc list-style=\"disc\" selector=\"h3\" count-number=\"9\" sub-toc=\"true\"><\/kinsta-auto-toc>\n<h3 id=\"array-spread-operator\">array_merge\u3092\u5fd8\u308c\u307e\u3057\u3087\u3046\uff01PHP 7.4\u3067\u914d\u5217\u5f0f\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u6f14\u7b97\u5b50\u304c\u767b\u5834\u3057\u307e\u3059<\/h3>\n<p>PHP 5.6\u4ee5\u964d\u3067\u5229\u7528\u53ef\u80fd\u306a\u3001<a href=\"https:\/\/wiki.php.net\/rfc\/argument_unpacking\">\u5f15\u6570\u306e\u30a2\u30f3\u30d1\u30c3\u30af<\/a>\u306f\u914d\u5217\u3084<a href=\"https:\/\/www.php.net\/manual\/ja\/class.traversable.php\">Traversable<\/a>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5f15\u6570\u30ea\u30b9\u30c8\u306b\u30a2\u30f3\u30d1\u30c3\u30af\u3059\u308b\u305f\u3081\u306e\u69cb\u6587\u3067\u3059\u3002\u6b21\u306e\u4f8b\u306e\u3088\u3046\u306b\u3001\u914d\u5217\u307e\u305f\u306fTraversable\u3092\u30a2\u30f3\u30d1\u30c3\u30af\u3059\u308b\u306b\u306f\u3001\u5148\u982d\u306b\u2026\uff083\u70b9\u30ea\u30fc\u30c0\u30fc\uff09\u3092\u4ed8\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">function test(...$args) { var_dump($args); }\ntest(1, 2, 3);<\/code><\/pre>\n<p>\u3053\u306e<a href=\"https:\/\/wiki.php.net\/rfc\/spread_operator_for_array\">PHP 7.4\u306eRFC<\/a>\u3067\u306f\u3001\u3053\u306e\u6a5f\u80fd\u3092\u914d\u5217\u5b9a\u7fa9\u306b\u62e1\u5f35\u3059\u308b\u3053\u3068\u304c\u63d0\u6848\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">$arr = [...$args];<\/code><\/pre>\n<p><strong>\u914d\u5217\u5f0f\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u6f14\u7b97\u5b50<\/strong>\u306e\u6700\u521d\u306e\u5229\u70b9\u306f\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u3067\u3042\u308b\u3088\u3046\u3067\u3059\u3002<a href=\"https:\/\/wiki.php.net\/rfc\/spread_operator_for_array\">RFC\u306e\u6587\u66f8<\/a>\u306b\u306f\u6b21\u306e\u3088\u3046\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<blockquote><p>\u30b9\u30d7\u30ec\u30c3\u30c9\u6f14\u7b97\u5b50\u306f\u3001<code>array_merge<\/code>\u3088\u308a\u3082\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u3044\u3044\u306f\u305a\u3067\u3059\u3002 \u7406\u7531\u306f\u3001<code>array_merge<\/code>\u304c\u95a2\u6570\u3067\u3042\u308b\u306e\u306b\u5bfe\u3057\u3001\u30b9\u30d7\u30ec\u30c3\u30c9\u6f14\u7b97\u5b50\u304c\u8a00\u8a9e\u69cb\u9020\u3067\u3042\u308b\u3053\u3068\u3060\u3051\u3067\u306a\u304f\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u6700\u9069\u5316\u304c\u5b9a\u6570\u914d\u5217\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6539\u5584\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p><\/blockquote>\n<p>\u30b9\u30d7\u30ec\u30c3\u30c9\u6f14\u7b97\u5b50\u306e\u91cd\u8981\u306a\u5229\u70b9\u306f\u3001<code>array_merge<\/code>\u95a2\u6570\u306f\u914d\u5217\u306e\u307f\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u5bfe\u3057\u3066\u3001\u5168\u3066\u306eTraversable\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u4e0b\u8a18\u306f\u3001\u914d\u5217\u5f0f\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u6f14\u7b97\u5b50\u306e\u4f8b\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-php\">$parts = ['apple', 'pear'];\n$fruits = ['banana', 'orange', ...$parts, 'watermelon'];\nvar_dump($fruits);<\/code><\/pre>\n<p>PHP 7.3\u4ee5\u524d\u3067\u3053\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u305f\u5834\u5408\u3001\u89e3\u6790\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3057\u305f\u3002<\/p>\n<pre><code class=\"language-php\">Parse error: syntax error, unexpected '...'(T_ELLIPSIS), expecting ']' in \/app\/spread-operator.php on line 3<\/code><\/pre>\n<p>\u4e00\u65b9\u3001PHP 7.4\u306f\u914d\u5217\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">array(5) {\n\t[0]=&gt;\n\tstring(6) \"banana\"\n\t[1]=&gt;\n\tstring(6) \"orange\"\n\t[2]=&gt;\n\tstring(5) \"apple\"\n\t[3]=&gt;\n\tstring(4) \"pear\"\n\t[4]=&gt;\n\tstring(10) \"watermelon\"\n}<\/code><\/pre>\n<p>RFC\u306b\u306f\u3001\u540c\u3058\u914d\u5217\u3092\u8907\u6570\u56de\u62e1\u5f35\u3067\u304d\u308b\u3068\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u901a\u5e38\u306e\u30a8\u30ec\u30e1\u30f3\u30c8\u306f\u30b9\u30d7\u30ec\u30c3\u30c9\u6f14\u7b97\u5b50\u306e\u524d\u5f8c\u306b\u8ffd\u52a0\u3067\u304d\u308b\u305f\u3081\u3001\u914d\u5217\u5185\u306e\u3069\u3053\u306b\u3067\u3082\u30b9\u30d7\u30ec\u30c3\u30c9\u6f14\u7b97\u5b50\u304c\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u6b21\u306e\u30b3\u30fc\u30c9\u306f\u4e88\u60f3\u3069\u304a\u308a\u306b\u6a5f\u80fd\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">$arr1 = [1, 2, 3];\n$arr2 = [4, 5, 6];\n$arr3 = [...$arr1, ...$arr2];\n$arr4 = [...$arr1, ...$arr3, 7, 8, 9];<\/code><\/pre>\n<p>\u95a2\u6570\u306b\u8fd4\u3055\u308c\u305f\u914d\u5217\u3092\u76f4\u63a5\u65b0\u3057\u3044\u914d\u5217\u306b\u30a2\u30f3\u30d1\u30c3\u30af\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">function buildArray(){\n\treturn ['red', 'green', 'blue'];\n}\n$arr1 = [...buildArray(), 'pink', 'violet', 'yellow'];<\/code><\/pre>\n<p>PHP 7.4\u3067\u306f\u6b21\u306e\u914d\u5217\u304c\u51fa\u529b\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">array(6) {\n\t[0]=&gt;\n\tstring(3) \"red\"\n\t[1]=&gt;\n\tstring(5) \"green\"\n\t[2]=&gt;\n\tstring(4) \"blue\"\n\t[3]=&gt;\n\tstring(4) \"pink\"\n\t[4]=&gt;\n\tstring(6) \"violet\"\n\t[5]=&gt;\n\tstring(6) \"yellow\"\n}<\/code><\/pre>\n<p><a href=\"https:\/\/www.php.net\/manual\/ja\/language.generators.syntax.php\">\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u306e\u69cb\u6587<\/a>\u3082\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-php\">function generator() {\n\tfor ($i = 3; $i &lt;= 5; $i++) {\n\t\tyield $i;\n\t}\n}\n$arr1 = [0, 1, 2, ...generator()];<\/code><\/pre>\n<p>\u3057\u304b\u3057\u3001\u53c2\u7167\u6e21\u3057\u306e\u914d\u5217\u3092\u30a2\u30f3\u30d1\u30c3\u30af\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u6b21\u306e\u4f8b\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre><code class=\"language-php\">$arr1 = ['red', 'green', 'blue'];\n$arr2 = [...&$arr1];<\/code><\/pre>\n<p>\u53c2\u7167\u306b\u3088\u3063\u3066\u914d\u5217\u3092\u30a2\u30f3\u30d1\u30c3\u30af\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001PHP\u306f\u6b21\u306e\u89e3\u6790\u30a8\u30e9\u30fc\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">Parse error: syntax error, unexpected '&' in \/app\/spread-operator.php on line 3<\/code><\/pre>\n<p>\u3068\u306b\u304b\u304f\u3001\u6700\u521d\u306e\u914d\u5217\u306e\u8981\u7d20\u304c\u53c2\u7167\u306b\u3088\u3063\u3066\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u30012\u756a\u76ee\u306e\u914d\u5217\u306b\u3082\u53c2\u7167\u306b\u3088\u3063\u3066\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002\u4e0b\u8a18\u306f\u305d\u306e\u4e00\u4f8b\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-php\">$arr0 = 'red';\n$arr1 = [&$arr0, 'green', 'blue'];\n$arr2 = ['white', ...$arr1, 'black'];<\/code><\/pre>\n<p>\u4e00\u65b9\u3001PHP 7.4\u3067\u306f\u4e0b\u8a18\u304c\u8fd4\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre><code>array(5) {\n\t[0]=&gt;\n\tstring(5) \"white\"\n\t[1]=&gt;\n\t<strong>&string(3) \"red\"<\/strong>\n\t[2]=&gt;\n\tstring(5) \"green\"\n\t[3]=&gt;\n\tstring(4) \"blue\"\n\t[4]=&gt;\n\tstring(5) \"black\"\n}<\/code><\/pre>\n<p>\u30b9\u30d7\u30ec\u30c3\u30c9\u6f14\u7b97\u5b50\u306e\u63d0\u6848\u306f43\u5bfe1\u306e\u6295\u7968\u3067\u53ef\u6c7a\u3057\u307e\u3057\u305f\u3002<\/p>\n<h3 id=\"arrow-functions\">\u77e2\u5370\u95a2\u65702.0\uff08\u30b7\u30e7\u30fc\u30c8\u30af\u30ed\u30fc\u30b8\u30e3\uff09<\/h3>\n<p>PHP\u3067\u306f\u3001<a href=\"https:\/\/www.php.net\/manual\/ja\/functions.anonymous.php\">\u7121\u540d\u95a2\u6570<\/a>\u306f\u975e\u5e38\u306b\u5197\u9577\u3067\u3001\u4f5c\u6210\u304b\u3064\u4fdd\u5b88\u3057\u306b\u304f\u3044\u3082\u306e\u3068\u898b\u306a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/wiki.php.net\/rfc\/arrow_functions_v2\">\u3053\u306eRFC<\/a>\u3067\u306f\u3001PHP\u30b3\u30fc\u30c9\u3092\u5927\u5e45\u306b\u6574\u7406\u3067\u304d\u308b<strong>\u77e2\u5370\u95a2\u6570<\/strong>\uff08\u30b7\u30e7\u30fc\u30c8\u30af\u30ed\u30fc\u30b8\u30e3\uff09\u306e\u77ed\u304f\u3066\u660e\u78ba\u306a\u69cb\u6587\u306e\u5c0e\u5165\u3092\u63d0\u6848\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306e\u4f8b\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre><code class=\"language-php\">function cube($n){\n\treturn ($n * $n * $n);\n}\n$a = [1, 2, 3, 4, 5];\n$b = array_map('cube', $a);\nprint_r($b);<\/code><\/pre>\n<p>PHP 7.4\u3067\u306f\u3001\u3088\u308a\u7c21\u6f54\u306a\u69cb\u6587\u3092\u4f7f\u7528\u3067\u304d\u3001\u4e0a\u8a18\u306e\u95a2\u6570\u306f\u6b21\u306e\u3088\u3046\u306b\u66f8\u304d\u76f4\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">$a = [1, 2, 3, 4, 5];\n$b = array_map(fn($n) =&gt; $n * $n * $n, $a);\nprint_r($b);<\/code><\/pre>\n<p>\u73fe\u5728\u3001<a href=\"https:\/\/www.php.net\/manual\/ja\/functions.anonymous.php\">\u7121\u540d\u95a2\u6570<\/a>\uff08\u30af\u30ed\u30fc\u30b8\u30e3\uff09\u306f\u3001\u4ee5\u4e0b\u306b\u793a\u3059\u3088\u3046\u306b\u3001<code>use<\/code>\u8a00\u8a9e\u69cb\u6210\u306e\u304a\u304b\u3052\u3067\u5909\u6570\u3092\u89aa\u306e\u30b9\u30b3\u30fc\u30d7\u304b\u3089\u5f15\u304d\u7d99\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">$factor = 10;\n$calc = function($num) use($factor){\n\treturn $num * $factor;\n};<\/code><\/pre>\n<p>\u3057\u304b\u3057PHP 7.4\u3067\u306f\u3001\u89aa\u30b9\u30b3\u30fc\u30d7\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u5909\u6570\u306f<strong>\u6697\u9ed9\u306b\u5024\u3068\u3057\u3066\u8868\u793a\u3055\u308c\u307e\u3059<\/strong>\u3002\uff08\u6697\u9ed9\u7684\u306a\u5024\u306b\u3088\u308b\u30b9\u30b3\u30fc\u30d7\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0\uff09\u305d\u306e\u305f\u3081\u3001\u4e0a\u8a18\u306e\u95a2\u6570\u5168\u4f53\u30921\u884c\u3067\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">$factor = 10;\n$calc = fn($num) =&gt; $num * $factor;<\/code><\/pre>\n<p>\u89aa\u30b9\u30b3\u30fc\u30d7\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u5909\u6570\u306f\u3001\u77e2\u5370\u95a2\u6570\u3067<code class=\"language-php\">use($var)<\/code>\u306e\u4f7f\u7528\u3068\u540c\u69d8\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u89aa\u30b9\u30b3\u30fc\u30d7\u306e\u5909\u6570\u304c\u5909\u66f4\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u65b0\u3057\u3044\u69cb\u6587\u3067\u306f\u3001\u8aad\u307f\u3084\u3059\u304f\u3066\u4fdd\u5b88\u3057\u3084\u3059\u3044\u30b3\u30fc\u30c9\u304c\u4f5c\u6210\u3067\u304d\u308b\u305f\u3081\u3001\u672c\u8a00\u8a9e\u306e\u5927\u5e45\u306a\u6539\u5584\u9805\u76ee\u306b\u9055\u3044\u3042\u308a\u307e\u305b\u3093\u3002<a href=\"https:\/\/kinsta.com\/jp\/blog\/php-7-2\/\">\u30d1\u30e9\u30e1\u30fc\u30bf\u578b\u3068\u623b\u308a\u5024\u306e\u578b\u5ba3\u8a00<\/a>\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3001\u53ef\u5909\u9577\u5f15\u6570\u30ea\u30b9\u30c8\uff08<a href=\"https:\/\/ja.wikipedia.org\/wiki\/\u53ef\u5909\u9577\u5f15\u6570\">\u53ef\u5909\u9577\u95a2\u6570<\/a>\uff09\u3001\u53c2\u7167\u6e21\u3057\u306a\u3069\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u30b7\u30e7\u30fc\u30c8\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u307e\u305f\u3001\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u3067\u3082\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u305d\u308c\u306b\u3001\u901a\u5e38\u306e\u30af\u30ed\u30fc\u30b8\u30e3\u3068\u540c\u69d8\u306b<code>$this<\/code>\u5909\u6570\u3055\u3048\u4f7f\u7528\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u3053\u306eRFC\u306f51\u5bfe8\u306e\u6295\u7968\u3067\u53ef\u6c7a\u3057\u305f\u305f\u3081\u3001\u672c\u6a5f\u80fd\u306fPHP 7.4\u3067\u5c0e\u5165\u3055\u308c\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<h3 id=\"nulled-coalesce-assign-operator\">null \u5408\u4f53\u6f14\u7b97\u5b50<\/h3>\n<p>PHP 7\u3067\u5c0e\u5165\u3055\u308c\u305f<a href=\"https:\/\/www.php.net\/manual\/ja\/migration70.new-features.php#migration70.new-features.null-coalesce-op\">\u5408\u4f53\u6f14\u7b97\u5b50<\/a>\uff08<code>??<\/code>\uff09\u306f\u3001\u4e09\u9805\u6f14\u7b97\u5b50\u3068<code>isset()<\/code>\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u5834\u5408\u306b\u4fbf\u5229\u3067\u3059\u3002\u3053\u306e\u6f14\u7b97\u5b50\u306f\u3001\u3082\u3057\u7b2c\u4e00\u30aa\u30da\u30e9\u30f3\u30c9\u304c\u975e <code>NULL<\/code> \u306e\u5024\u3067\u3042\u308c\u3070\u305d\u308c\u3092\u8fd4\u3057\u3001 \u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306f\u7b2c\u4e8c\u30aa\u30da\u30e9\u30f3\u30c9\u3092\u8fd4\u3057\u307e\u3059\u3002 \u4e0b\u8a18\u306f\u305d\u306e\u4e00\u4f8b\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-php\">$username = $_GET['user'] ?? 'nobody';<\/code><\/pre>\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306e\u6a5f\u80fd\u306f\u975e\u5e38\u306b\u7c21\u5358\u3067\u3059\u3002<strong>\u30ea\u30af\u30a8\u30b9\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u63a2\u3057\u53d6\u5f97\u3057\u3001\u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u8a2d\u5b9a\u3057\u307e\u3059<\/strong>\u3002\u4e0a\u8a18\u306e\u884c\u306e\u610f\u5473\u306f\u660e\u3089\u304b\u3067\u3059\u304c\u3001RFC\u306e\u3053\u306e\u4f8b\u306e\u3088\u3046\u306b\u3082\u3063\u3068\u9577\u3044\u5909\u6570\u540d\u304c\u3042\u3063\u305f\u3068\u3057\u305f\u3089\u3069\u3046\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<pre><code class=\"language-php\">$this-&gt;request-&gt;data['comments']['user_id'] = $this-&gt;request-&gt;data['comments']['user_id'] ?? 'value';<\/code><\/pre>\n<p>\u9577\u3044\u76ee\u3067\u898b\u308c\u3070\u3001\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306f\u4fdd\u5b88\u3057\u306b\u304f\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u958b\u767a\u8005\u304c\u3088\u308a\u5206\u304b\u308a\u3084\u3059\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u3051\u308b\u3088\u3046\u306b\u306a\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u3001\u3053\u306e<a href=\"https:\/\/wiki.php.net\/rfc\/null_coalesce_equal_operator\">RFC<\/a>\u306f<strong>null \u5408\u4f53\u6f14\u7b97\u5b50<\/strong>\uff08<code>??=<\/code>\uff09\u306e\u5c0e\u5165\u3092\u63d0\u6848\u3057\u3066\u3044\u307e\u3059\u3002\u3059\u308c\u3067\u3001\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306f\u306a\u304f\u3001\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">$this-&gt;request-&gt;data['comments']['user_id'] ??= 'value';<\/code><\/pre>\n<p>\u5de6\u5074\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u5024\u304c<code>null<\/code>\u306e\u5834\u5408\u306f\u3001\u53f3\u5074\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u5024\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<br \/>\n\u5408\u4f53\u6f14\u7b97\u5b50\u306f\u6bd4\u8f03\u6f14\u7b97\u5b50\u3067\u3059\u304c\u3001<code>??=<\/code>\u306f\u4ee3\u5165\u6f14\u7b97\u5b50\u3067\u3059\u306e\u3067\u3001\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u3053\u306e\u63d0\u6848\u306f37\u5bfe4\u306e\u6295\u7968\u3067\u53ef\u6c7a\u3057\u307e\u3057\u305f\u3002<\/p>\n<h3 id=\"typed-properties\">\u578b\u4ed8\u304d\u30d7\u30ed\u30d1\u30c6\u30a32.0<\/h3>\n<p>\u5f15\u6570\u306e\u578b\u5ba3\u8a00\uff08\u30bf\u30a4\u30d7\u30d2\u30f3\u30c8\uff09\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u95a2\u6570\u307e\u305f\u306f\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u306b\u6e21\u3055\u308c\u308b\u3068\u4e88\u60f3\u3055\u308c\u308b\u5909\u6570\u306e\u578b\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002\u578b\u5ba3\u8a00\u306f\u3001PHP 5\u4ee5\u964d\u3067\u5229\u7528\u53ef\u80fd\u306a\u6a5f\u80fd\u3067\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/php-7-2\/\">PHP 7.2<\/a>\u4ee5\u964d\u3067\u306f\u3001<code>object<\/code>\u30c7\u30fc\u30bf\u578b\u3067\u3082\u4f7f\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002PHP 7.4\u3067\u306f\u3001<a href=\"https:\/\/wiki.php.net\/rfc\/typed_properties_v2\">\u30d5\u30a1\u30fc\u30b9\u30c8\u30af\u30e9\u30b9\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u578b\u5ba3\u8a00<\/a>\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u578b\u5ba3\u8a00\u304c\u4e00\u6b69\u524d\u9032\u3057\u307e\u3057\u305f\u3002\u7c21\u5358\u306a\u4f8b\u3092\u3042\u3052\u308b\u3068\u3001<\/p>\n<pre><code class=\"language-php\">class User {\n\tpublic int $id;\n\tpublic string $name;\n}<\/code><\/pre>\n<p><code>void<\/code>\u3068<code>callable<\/code>\u3092\u9664\u3044\u3066\u3001\u3059\u3079\u3066\u306e\u578b\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">public int $scalarType;\nprotected ClassName $classType;\nprivate ?ClassName $nullableClassType;<\/code><\/pre>\n<p>RFC\u3067\u306f\u3001<code>void<\/code>\u3068<code>callable<\/code>\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u306a\u3044\u7406\u7531\u304c\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<blockquote><p>void\u578b\u306f\u4e0d\u4fbf\u3067\u3001\u4e0d\u660e\u306a\u3068\u3053\u308d\u304c\u3042\u308b\u305f\u3081\u3001\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p><\/blockquote>\n<blockquote><p>callable\u578b\u306f\u3001\u52d5\u4f5c\u304c\u6587\u8108\u306b\u3088\u308b\u3082\u306e\u3067\u3042\u308b\u305f\u3081\u3001\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p><\/blockquote>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001<code>bool<\/code>\u3001<code>int<\/code>\u3001<code>float<\/code>\u3001<code>string<\/code>\u3001<code>array<\/code>\u3001<code>object<\/code>\u3001<code>iterable<\/code>\u3001<code>self<\/code>\u3001<code>parent<\/code>\u3001\u4efb\u610f\u306e\u30af\u30e9\u30b9\u540d\u307e\u305f\u306f\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u540d\u3001\u304a\u3088\u3073<a href=\"https:\/\/www.php.net\/manual\/ja\/migration71.new-features.php\">null\u8a31\u5bb9\u578b<\/a>(<code>\uff1f\u578b<\/code>)\u3092\u5b89\u5168\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u578b\u306f\u9759\u7684\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">public static iterable $staticProp;<\/code><\/pre>\n<p><code>var<\/code>\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u3082\u304b\u307e\u3044\u307e\u305b\u3093\u3002<\/p>\n<pre><code class=\"language-php\">var bool $flag;<\/code><\/pre>\n<p>\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u306f\u53ef\u80fd\u3067\u3059\u3002\u3082\u3061\u308d\u3093\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u5024\u306f\u5ba3\u8a00\u3055\u308c\u305f\u30d7\u30ed\u30d1\u30c6\u30a3\u578b\u3068\u4e00\u81f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306e<code>null<\/code>\u5024\u3092\u8a2d\u5b9a\u3067\u304d\u308b\u306e\u306fnull\u5024\u3092\u8a31\u5bb9\u3055\u308c\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u307f\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-php\">public string $str = \"foo\";\npublic ?string $nullableStr = null;<\/code><\/pre>\n<p>\u4e00\u3064\u306e\u5ba3\u8a00\u5185\u306e\u3059\u3079\u3066\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u540c\u3058\u578b\u304c\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">public float $x, $y;<\/code><\/pre>\n<p>\u30d7\u30ed\u30d1\u30c6\u30a3\u578b\u3092\u9593\u9055\u3048\u308b\u3068\u3069\u3046\u306a\u308a\u307e\u3059\u304b\uff1f \u6b21\u306e\u30b3\u30fc\u30c9\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre><code class=\"language-php\">class User {\n\tpublic int $id;\n\tpublic string $name;\n}\n\n$user = new User;\n$user-&gt;id = 10;\n$user-&gt;name = [];<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u6587\u5b57\u5217\u30d7\u30ed\u30d1\u30c6\u30a3\u578b\u3092\u5ba3\u8a00\u3057\u307e\u3057\u305f\u304c\u3001\u30d7\u30ed\u30d1\u30c6\u30a3\u5024\u3068\u3057\u3066\u914d\u5217\u3092\u8a2d\u5b9a\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u5834\u5408\u306f\u3001\u6b21\u306e\u81f4\u547d\u7684\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">Fatal error: Uncaught TypeError: Typed property User::$name must be string, array used in \/app\/types.php:9<\/code><\/pre>\n<p>\u3053\u306eRFC\u306f70\u5bfe1\u306e\u6295\u7968\u3067\u53ef\u6c7a\u3057\u307e\u3057\u305f\u3002<\/p>\n\n<h3 id=\"weakreferences\">\u5f31\u3044\u53c2\u7167<\/h3>\n<p>\u3053\u306e<a href=\"https:\/\/wiki.php.net\/rfc\/weakrefs\">RFC<\/a>\u306b\u3088\u308a\u3001PHP 7.4\u3067\u306f<a href=\"https:\/\/www.php.net\/manual\/en\/class.weakreference.php\">\u5f31\u3044\u53c2\u7167\u30af\u30e9\u30b9<\/a>\u304c\u5c0e\u5165\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u30d7\u30ed\u30b0\u30e9\u30de\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u81ea\u4f53\u304c\u7834\u58ca\u3055\u308c\u308b\u306e\u3092\u9632\u3050\u3053\u3068\u306e\u3067\u304d\u306a\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3078\u306e\u53c2\u7167\u3092\u6301\u3061\u7d9a\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u73fe\u5728\u306ePHP\u3067\u306fpecl-weakref\u306a\u3069\u306e\u62e1\u5f35\u6a5f\u80fd\u3092\u4f7f\u7528\u3057\u3066\u5f31\u3044\u53c2\u7167\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3068\u306b\u304b\u304f\u3001\u65b0\u3057\u3044API\u306f\u6587\u66f8\u5316\u3055\u308c\u305f<code>WeakRef<\/code>\u30af\u30e9\u30b9\u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4e0b\u8a18\u306f\u3001<a href=\"https:\/\/www.slideshare.net\/nikita_ppv\/typed-properties-and-more-whats-coming-in-php-74\">\u3053\u306e\u63d0\u6848\u306e\u8457\u8005\u3067\u3042\u308bNikita Popov\u306b\u3088\u308b\u4e00\u4f8b<\/a>\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-php\">$object = new stdClass;\n$weakRef = WeakReference::create($object);\n\nvar_dump($weakRef-&gt;get());\nunset($object);\nvar_dump($weakRef-&gt;get());<\/code><\/pre>\n<p>\u6700\u521d\u306e<code>var_dump<\/code>\u306f<code class=\"language-php\">object(stdClass)#1 (0) {}<\/code>\u3092\u51fa\u529b\u3057\u307e\u3059\u304c\u30012\u756a\u76ee\u306e<code>var_dump<\/code>\u306f\u53c2\u7167\u3055\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u7834\u68c4\u3055\u308c\u3066\u3044\u308b\u70ba<code>NULL<\/code>\u3092\u51fa\u529b\u3057\u307e\u3059\u3002<\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">Slides for my PHP 7.4 talk at <a href=\"https:\/\/twitter.com\/hashtag\/PHPRussia2019?src=hash&amp;ref_src=twsrc%5Etfw\">#PHPRussia2019<\/a>. Was a great conference!<a href=\"https:\/\/t.co\/zLr9Bj2aKl\">https:\/\/t.co\/zLr9Bj2aKl<\/a><\/p>\n<p>&mdash; Nikita Popov (@nikita_ppv) <a href=\"https:\/\/twitter.com\/nikita_ppv\/status\/1130188147940352000?ref_src=twsrc%5Etfw\">May 19, 2019<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>\u3053\u306eRFC\u306f28\u5bfe5\u306e\u6295\u7968\u3067\u53ef\u6c7a\u3057\u307e\u3057\u305f\u3002<\/p>\n<h3 id=\"covariant-return-types-contravariant-parameters\">\u5171\u5909\u306e\u623b\u308a\u578b\u3068\u53cd\u5909\u306e\u30d1\u30e9\u30e1\u30fc\u30bf<\/h3>\n<p><a href=\"https:\/\/ja.wikipedia.org\/wiki\/\u5171\u5909\u6027\u3068\u53cd\u5909\u6027 (\u8a08\u7b97\u6a5f\u79d1\u5b66)\">\u5909\u6027<\/a>\u3068\u306f\u578b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u578b\u304c<a href=\"https:\/\/ja.wikipedia.org\/wiki\/\u6d3e\u751f\u578b\">\u6d3e\u751f\u578b<\/a>\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u3092\u8a18\u8ff0\u3059\u308b\u30af\u30e9\u30b9\u968e\u5c64\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3059\u3002\u578b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u4e0d\u5909<\/strong>\uff1a\u30b9\u30fc\u30d1\u30fc\u30bf\u30a4\u30d7\u306e\u578b\u304c\u6d3e\u751f\u578b\u306e\u578b\u3092\u5236\u7d04\u3059\u308b\u5834\u5408\u3002<\/li>\n<li><strong>\u5171\u5909<\/strong>\uff1a\u578b\u306e\u9806\u5e8f\u4ed8\u3051\u304c\u5909\u308f\u3089\u306a\u3044\u5834\u5408\u3002\uff08\u5177\u4f53\u7684\u306a\u3082\u306e\u306e\u9806\uff09<\/li>\n<li><strong>\u53cd\u5909<\/strong>\uff1a\u9806\u5e8f\u3092\u4e26\u3079\u66ff\u3048\u308b\u5834\u5408\u3002\uff08\u4e00\u822c\u7684\u306a\u3082\u306e\u306e\u9806\uff09<\/li>\n<\/ul>\n<p>PHP\u306e\u73fe\u6642\u70b9\u3067\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u623b\u308a\u578b\u306f\u307b\u3068\u3093\u3069\u4e0d\u5909\u3067\u3059\u3002\u4f8b\u5916\u306f\u5c11\u306a\u3044\u3067\u3059\u3002\u3053\u306eRFC\u3067\u306f\u3001\u30d1\u30e9\u30e1\u30fc\u30bf\u578b\u3068\u623b\u308a\u578b\u3067\u5171\u5909\u6027\u3068\u53cd\u5909\u6027\u3092\u8a31\u53ef\u3059\u308b\u3053\u3068\u304c\u63d0\u6848\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u30b3\u30fc\u30c9\u4f8b\u3082\u3044\u304f\u3064\u304b\u6319\u3052\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e0b\u8a18\u306f\u3001<strong>\u5171\u5909\u306e\u623b\u308a\u578b<\/strong>\u306e\u4e00\u4f8b\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-php\">interface Factory {\n\tfunction make(): object;\n}\n\nclass UserFactory implements Factory {\n\tfunction make(): User;\n}<\/code><\/pre>\n<p>\u4e0b\u8a18\u306f\u3001<strong>\u53cd\u5909\u306e\u623b\u308a\u578b<\/strong>\u306e\u4e00\u4f8b\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-php\">interface Concatable {\n\tfunction concat(Iterator $input); \n}\n \nclass Collection implements Concatable {\n\t\/\/ accepts all iterables, not just Iterator\n\tfunction concat(iterable $input) {\/* ...*\/}\n}<\/code><\/pre>\n<p>PHP 7.4\u306e\u5171\u5909\u6027\u3068\u53cd\u5909\u6027\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/wiki.php.net\/rfc\/covariant-returns-and-contravariant-parameters\">RFC<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u3053\u306eRFC\u306f39\u5bfe1\u306e\u6295\u7968\u3067\u53ef\u6c7a\u3057\u307e\u3057\u305f\u3002<\/p>\n<h3 id=\"preloading\">\u30d7\u30ea\u30ed\u30fc\u30c9<\/h3>\n<p>Dmitry Stogov\u306b\u3088\u308b<a href=\"https:\/\/wiki.php.net\/rfc\/preload\">\u3053\u306e\u63d0\u6848<\/a>\u3067\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u306f\u305a\u3067\u3042\u308b\u305f\u3081\u3001\u7279\u306b\u8208\u5473\u3044\u3067\u3059\u3002<strong>\u30d7\u30ea\u30ed\u30fc\u30c9<\/strong>\u3068\u306f\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u521d\u671f\u5316\u6642\u306b\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092<a href=\"https:\/\/www.php.net\/manual\/ja\/book.opcache.php\">OPCache<\/a>\u306b\u30ed\u30fc\u30c9\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\uff08<a href=\"http:\/\/www.phpinternalsbook.com\/php7\/extensions_design\/php_lifecycle.html\" target=\"_blank\" rel=\"noopener noreferrer\">PHP\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb<\/a>\u306b\u3064\u3044\u3066\u306e\u306f\u3053\u3061\u3089\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002\uff09<\/p>\n<figure style=\"width: 335px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/05\/php-lifecycle.png\" alt=\"PHP\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\" width=\"335\" height=\"323\"><figcaption class=\"wp-caption-text\">PHP\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\uff08\u753b\u50cf\u306e\u51fa\u5178\uff1a<a href=\"https:\/\/phpinternals.net\/categories\/extensions\">PHP Internals<\/a>\uff09<\/figcaption><\/figure>\n<p>Dmitry\u304c\u30d7\u30ea\u30ed\u30fc\u30c9\u306e\u304c\u6982\u8981\u3092\u6b21\u306e\u3088\u3046\u306b\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<blockquote><p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9\u304c\u5b9f\u884c\u3055\u308c\u308b\u524d\u306e\u30b5\u30fc\u30d0\u30fc\u8d77\u52d5\u6642\u306b\u3001\u7279\u5b9a\u306ePHP\u30d5\u30a1\u30a4\u30eb\u3092\u30e1\u30e2\u30ea\u306b\u30ed\u30fc\u30c9\u3057\u3001\u305d\u306e\u5185\u5bb9\u3092\u4eca\u5f8c\u305d\u306e\u30b5\u30fc\u30d0\u30fc\u304c\u51e6\u7406\u3059\u308b\u3059\u3079\u3066\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u300c\u6052\u4e45\u7684\u306b\u5229\u7528\u53ef\u80fd\u300d\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d5\u30a1\u30a4\u30eb\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u95a2\u6570\u3068\u30af\u30e9\u30b9\u306f\u3001\u5185\u90e8\u306e\u3082\u306e\u3068\u540c\u69d8\u306b\u3001\u3059\u3050\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p><\/blockquote>\n<p>\u3053\u308c\u3089\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u30b5\u30fc\u30d0\u306e\u8d77\u52d5\u6642\u306b\u30ed\u30fc\u30c9\u3055\u308c\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u884c\u524d\u306b\u5b9f\u884c\u3055\u308c\u3001\u4eca\u5f8c\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u4f7f\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3088\u3046\u3067\u3059\u3002\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u9762\u3067\u306f\u7d20\u6674\u3089\u3057\u3044\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u30d7\u30ea\u30ed\u30fc\u30c9\u306f\u7279\u5b9a\u306e<code>php.ini<\/code>\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6<code>opcache.preload<\/code>\u306b\u3088\u3063\u3066\u5236\u5fa1\u3055\u308c\u307e\u3059\u3002 \u3053\u306e\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u306f\u30b5\u30fc\u30d0\u30fc\u8d77\u52d5\u6642\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u5b9f\u884c\u3055\u308c\u308bPHP\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u30d5\u30a1\u30a4\u30eb\u3092\u8ffd\u52a0\u3059\u308b\u304b<code>opcache_compile_file()<\/code>\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u8ffd\u52a0\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u30d7\u30ea\u30ed\u30fc\u30c9\u3059\u308b\u305f\u3081\u306b\u3082\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\uff08\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f<a href=\"https:\/\/www.php.net\/manual\/ja\/function.opcache-compile-file.php\">PHP\u306e\u6587\u7ae0<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002\uff09<\/p>\n<p>\u3057\u304b\u3057\u3001\u6b20\u70b9\u304c\u3042\u308a\u307e\u3059\u3002 RFC\u3067\u6b21\u306e\u5185\u5bb9\u304c\u660e\u78ba\u306b\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<blockquote><p>\u30d7\u30ea\u30ed\u30fc\u30c9\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306fopcache\u30e1\u30e2\u30ea\u306b\u6c38\u4e45\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u307e\u307e\u306b\u306a\u308a\u307e\u3059\u3002\u8a72\u5f53\u306e\u30bd\u30fc\u30b9\u30d5\u30a1\u30a4\u30eb\u3092\u5909\u66f4\u3057\u3066\u3082\u3001\u30b5\u30fc\u30d0\u30fc\u3092\u518d\u8d77\u52d5\u3057\u306a\u3044\u3068\u4f55\u3082\u5f71\u97ff\u3042\u308a\u307e\u305b\u3093\u3002<\/p><\/blockquote>\n<p>\u305f\u3060\u3057\u3001\u30d7\u30ea\u30ed\u30fc\u30c9\u30d5\u30a1\u30a4\u30eb\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u95a2\u6570\u306f\u3001PHP\u306e\u95a2\u6570\u30c6\u30fc\u30d6\u30eb\u3068\u30af\u30e9\u30b9\u30c6\u30fc\u30d6\u30eb\u306b\u6052\u4e45\u7684\u306b\u30ed\u30fc\u30c9\u3055\u308c\u305f\u307e\u307e\u306b\u306a\u308a\u3001\u4eca\u5f8c\u306e\u3059\u3079\u3066\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u5229\u7528\u53ef\u80fd\u306a\u307e\u307e\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5927\u5e45\u306a\u6539\u5584\u306b\u3064\u306a\u304c\u308b\u3067\u3057\u3087\u3046\u3002\uff08\u6539\u5584\u306e\u7a0b\u5ea6\u304c\u5834\u5408\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\uff09<\/p>\n<p><a href=\"https:\/\/wiki.php.net\/rfc\/preload\">\u30d7\u30ea\u30ed\u30fc\u30c9<\/a>\u306e\u6982\u8981\u306b\u3064\u3044\u3066\u306f\u516c\u5f0f\u306eRFC\u30da\u30fc\u30b8\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 id=\"serialization\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u65b0\u3057\u3044\u72ec\u81ea\u306e\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u30e1\u30ab\u30cb\u30ba\u30e0<\/h3>\n<p>\u3053\u308c\u306f\u3001\u904e\u534a\u6570\u306e\u6295\u7968\u306b\u3088\u3063\u3066\u627f\u8a8d\u3055\u308c\u305fNikita Popov\u306b\u3088\u308b<a href=\"https:\/\/nikic.github.io\/aboutMe.html\">\u3082\u3046\u4e00\u3064\u306e\u63d0\u6848<\/a>\u3067\u3059\u3002<\/p>\n<p>\u73fe\u5728\u3001PHP\u306b\u304a\u3051\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u72ec\u81ea\u306e\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u30e1\u30ab\u30cb\u30ba\u30e0\u306f2\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><code>__sleep()<\/code>\u3068<code>__wakeup()<\/code>__sleep\uff08\uff09\u304a\u3088\u3073__wakeup\uff08\uff09\u30de\u30b8\u30c3\u30af\u30e1\u30bd\u30c3\u30c9<\/li>\n<li><code>Serializable<\/code> \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9<\/li>\n<\/ul>\n<p>Nikita\u306b\u3088\u308b\u3068\u3001\u4e0a\u8a18\u306e\u3069\u3061\u3089\u306b\u3082\u3001\u8907\u96d1\u3067\u4fe1\u983c\u6027\u306e\u4f4e\u3044\u30b3\u30fc\u30c9\u306b\u3064\u306a\u304c\u308b\u554f\u984c\u304c\u3042\u308b\u3088\u3046\u3067\u3059\u3002\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f<a href=\"https:\/\/wiki.php.net\/rfc\/custom_object_serialization\">RFC<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002\u65b0\u3057\u3044\u72ec\u81ea\u306e\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u30e1\u30ab\u30cb\u30ba\u30e0\u306b\u306f\u30012\u3064\u306e\u65e2\u5b58\u306e\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u65b0\u3057\u3044\u30de\u30b8\u30c3\u30af\u30e1\u30bd\u30c3\u30c9\u304c2\u3064\uff08<code>__serialize()<\/code>\u3068<code>__unserialize()<\/code>\uff09\u3042\u308a\u3001\u3053\u308c\u306b\u3088\u308a\u4e0a\u8a18\u306e\u554f\u984c\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u308b\u306f\u305a\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u3053\u306eRFC\u306f20\u5bfe7\u306e\u6295\u7968\u3067\u53ef\u6c7a\u3057\u307e\u3057\u305f\u3002<\/p>\n<h3 id=\"deprecations\">\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308b\u3082\u306e<\/h3>\n<p>\u4ee5\u4e0b\u306fPHP 7.4\u3067\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308b\u4e88\u5b9a\u306e\u6a5f\u80fd\u3068\u95a2\u6570\u306e\u4e00\u89a7\u3067\u3059\u3002\u5b8c\u5168\u306a\u30ea\u30b9\u30c8\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/github.com\/php\/php-src\/blob\/PHP-7.4\/UPGRADING\">PHP 7.4 Upgrade Notes<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n<h4>\u9023\u7d50\u6f14\u7b97\u5b50\u306e\u512a\u5148\u9806\u4f4d\u306e\u5909\u66f4<\/h4>\n<p>\u73fe\u5728\u306ePHP\u3067\u306f\u3001 \u300c+\u300d\u3068 \u300c-\u300d\u306e\u7b97\u8853\u6f14\u7b97\u5b50\u3068\u300c.\u300d\u306e\u6587\u5b57\u5217\u6f14\u7b97\u5b50\u306f\u5de6\u7d50\u5408\u3067\u3001\u512a\u5148\u9806\u4f4d\u306f\u540c\u3058\u3067\u3059\u3002\uff08<a href=\"https:\/\/www.php.net\/manual\/ja\/language.operators.precedence.php\">\u6f14\u7b97\u5b50\u306e\u512a\u5148\u9806\u4f4d<\/a>\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002\uff09<\/p>\n<p>\u4e0b\u8a18\u306f\u305d\u306e\u4e00\u4f8b\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-php\">echo \"sum: \" .$a + $b;<\/code><\/pre>\n<p>PHP 7.3\u3067\u306f\u3001\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306f\u4ee5\u4e0b\u306e\u8b66\u544a\u304c\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">Warning: A non-numeric value encountered in \/app\/types.php on line 4<\/code><\/pre>\n<p>\u3053\u308c\u306f\u3001\u7d50\u5408\u6642\u306e\u8a55\u4fa1\u304c\u5de6\u304b\u3089\u53f3\u306b\u884c\u308f\u308c\u308b\u305f\u3081\u3067\u3059\u3002\u6b21\u306e\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u306e\u3068\u540c\u3058\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-php\">echo (\"sum: \" .$a) + $b;<\/code><\/pre>\n<p>\u3053\u306e<a href=\"https:\/\/wiki.php.net\/rfc\/concatenation_precedence\">RFC<\/a>\u3067\u306f\u3001\u6f14\u7b97\u5b50\u306e\u512a\u5148\u9806\u4f4d\u3092\u5909\u66f4\u3057\u3066\u3001\u300c.\u300d\u306e\u512a\u5148\u9806\u4f4d\u3092\u300c+\u300d\u3068\u300c &#8211; \u300d\u6f14\u7b97\u5b50\u3088\u308a\u3082\u4f4e\u304f\u3057\u3066\u3001\u52a0\u7b97\u3068\u6e1b\u7b97\u304c\u5e38\u306b\u6587\u5b57\u5217\u9023\u7d50\u306e\u524d\u306b\u884c\u308f\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u304c\u63d0\u6848\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30b3\u30fc\u30c9\u306e\u8a72\u5f53\u306e\u884c\u306f\u6b21\u306e\u3082\u306e\u3068\u540c\u7b49\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">echo \"sum: \" .($a + $b);<\/code><\/pre>\n<p>\u3053\u306e\u63d0\u6848\u306b\u306f2\u6bb5\u968e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30d0\u30fc\u30b8\u30e7\u30f37.4\u4ee5\u964d\u3001PHP\u304c\u300c+\u300d\u3001\u300c-\u300d\u3084\u300c.\u300d\u4ed8\u304d\u306e\u304b\u3063\u3053\u3067\u56f2\u307e\u308c\u3066\u3044\u306a\u3044\u6570\u5f0f\u3092\u691c\u51fa\u3059\u308b\u3068\u3001\u975e\u63a8\u5968\u901a\u77e5\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/li>\n<li>\u3053\u308c\u3089\u306e\u6f14\u7b97\u5b50\u306e\u512a\u5148\u9806\u4f4d\u306e\u5b9f\u969b\u306e\u5909\u66f4\u306f\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/php-8\/\">PHP 8<\/a>\u3067\u8ffd\u52a0\u3055\u308c\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/li>\n<\/ul>\n<p>\u4e21\u65b9\u306e\u63d0\u6848\u306f\u904e\u534a\u6570\u306e\u6295\u7968\u306b\u3088\u3063\u3066\u627f\u8a8d\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<h4>\u5de6\u7d50\u5408\u4e09\u9805\u6f14\u7b97\u5b50\u306e\u975e\u63a8\u5968<\/h4>\n<p>PHP\u3067\u306f\u3001\u4ed6\u306e\u591a\u304f\u306e\u8a00\u8a9e\u3068\u306f\u7570\u306a\u308a\u3001\u4e09\u9805\u6f14\u7b97\u5b50\u306f\u5de6\u7d50\u5408\u3067\u3059\u3002Nikita Popof\u306b\u3088\u308b\u3068\u3001\u8907\u6570\u306e\u8a00\u8a9e\u3092\u6271\u3063\u3066\u3044\u308b\u30d7\u30ed\u30b0\u30e9\u30de\u306b\u3068\u3063\u3066\u306f\u3053\u308c\u304c\u6df7\u4e71\u3092\u62db\u304f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u73fe\u5728\u306ePHP\u3067\u306f\u6b21\u306e\u30b3\u30fc\u30c9\u304c\u6b63\u3057\u3044\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-php\">$b = $a == 1 ? 'one' : $a == 2 ? 'two' : $a == 3 ? 'three' : 'other';<\/code><\/pre>\n<p>\u6b21\u306e\u3088\u3046\u306b\u89e3\u91c8\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">$b = (($a == 1 ? 'one' : $a == 2) ? 'two' : $a == 3) ? 'three' : 'other';<\/code><\/pre>\n<p>\u610f\u56f3\u3057\u305f\u3068\u306f\u9055\u3046\u52d5\u4f5c\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u3001\u30a8\u30e9\u30fc\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u3053\u306eRFC\u3067\u306f\u3001\u4e09\u9805\u6f14\u7b97\u5b50\u306b\u5bfe\u3059\u308b\u5de6\u7d50\u5408\u306e\u4f7f\u7528\u3092\u975e\u63a8\u5968\u306b\u3057\u3001\u958b\u767a\u8005\u306b\u62ec\u5f27\u3092\u4f7f\u7528\u3057\u3066\u3082\u3089\u3046\u3053\u3068\u3092\u63d0\u6848\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u63d0\u6848\u306b\u30822\u6bb5\u968e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>PHP 7.4\u4ee5\u964d\u3067\u306f\u3001\u660e\u793a\u7684\u306b\u62ec\u5f27\u3092\u4f7f\u7528\u3057\u306a\u3044\u30cd\u30b9\u30c8\u3057\u305f\u4e09\u9805\u6f14\u7b97\u304c\u691c\u51fa\u3055\u308c\u308b\u3068\u975e\u63a8\u5968\u901a\u77e5\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/li>\n<li><a href=\"https:\/\/kinsta.com\/jp\/blog\/php-8\/\">PHP 8.0\u4ee5\u964d\u3067\u306f<\/a>\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u306e\u63d0\u6848\u306f35\u5bfe10\u306e\u6295\u7968\u3067\u53ef\u6c7a\u3057\u307e\u3057\u305f\u3002<\/p>\n<h2 class=\"has-anchor-hash\">PHP 7.4\u306eWordPress\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff\u306f\uff1f<span id=\"what-does-php-73-mean-for-wordpress-users\" class=\"anchor-hash\" aria-hidden=\"true\"><\/span><\/h2>\n<p>PHP\u306f\u3001Web\u4e0a\u3067\u6700\u3082\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u3059\u3002<a href=\"https:\/\/w3techs.com\/technologies\/details\/pl-php\/all\/all\">W3Techs<\/a>\u306b\u3088\u308b\u3068\u30012019\u5e7412\u67082\u65e5\u73fe\u5728\u306bPHP\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u304c\u308f\u304b\u3063\u3066\u3044\u308b\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e78.9%\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div><\/div><kinsta-auto-toc list-style=\"disc\" selector=\"h3\" count-number=\"5\" sub-toc=\"true\"><\/kinsta-auto-toc>\n<figure id=\"attachment_63301\" aria-describedby=\"caption-attachment-63301\" style=\"width: 1376px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-63301\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2019\/06\/php-versions-1.png\" alt=\"PHP\u306e\u4f7f\u7528\u72b6\u6cc1\uff082019\u5e7412\u6708\uff09\" width=\"1376\" height=\"654\" data-must_clone=\"true\"><figcaption id=\"caption-attachment-63301\" class=\"wp-caption-text\">PHP\u306e\u4f7f\u7528\u72b6\u6cc1\uff082019\u5e7412\u6708\uff09<\/figcaption><\/figure>\n<p>\u6b8b\u5ff5\u306a\u3053\u3068\u306b\u3001\u30b5\u30fc\u30d0\u30b5\u30a4\u30c9\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u304c\u77e5\u3089\u308c\u3066\u3044\u308b\u5168\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e<a href=\"https:\/\/w3techs.com\/technologies\/details\/pl-php\/5\/all\">44.0\uff05\u3067\u306fPHP 5\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059<\/a>\u3002<a href=\"https:\/\/w3techs.com\/technologies\/details\/pl-php\/7\/all\">PHP 7.0\u30687.1\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b<\/a>\u30e6\u30fc\u30b6\u30fc\u306e\u6570\u3082\u8003\u616e\u3059\u308b\u3068\u3001\u5927\u591a\u6570\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u30b5\u30dd\u30fc\u30c8\u306e\u306a\u3044PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_63275\" aria-describedby=\"caption-attachment-63275\" style=\"width: 1726px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-63275\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/2018\/06\/supported-php-versions-for-wordpress-1.png\" alt=\"\u30b5\u30dd\u30fc\u30c8\u306e\u3042\u308bPHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\" width=\"1726\" height=\"332\"><figcaption id=\"caption-attachment-63275\" class=\"wp-caption-text\">\u30b5\u30dd\u30fc\u30c8\u306e\u3042\u308bPHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\uff08\u753b\u50cf\u306e\u51fa\u5178\uff1a<a href=\"https:\/\/www.php.net\/supported-versions.php\">Supported Versions<\/a>\uff09<\/figcaption><\/figure>\n<p><a href=\"https:\/\/wordpress.org\/about\/stats\/\" target=\"_blank\" rel=\"noopener noreferrer\">WordPress\u306e\u6b63\u5f0f\u5206\u6790\u30da\u30fc\u30b8<\/a>\u306b\u3088\u308b\u3068\u3001\u672c\u7a3f\u57f7\u7b46\u306e\u6642\u70b9\u3067\u306f\u3001WordPress\u30e6\u30fc\u30b6\u30fc\u306e64%\u4ee5\u4e0a\u304c\u307e\u3060PHP\u306e\u30b5\u30dd\u30fc\u30c8\u306e\u306a\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u308f\u305a\u304b13\uff05\u304c<a href=\"https:\/\/kinsta.com\/jp\/changelog\/php-7-3-mykinsta\/\" target=\"_blank\" rel=\"noopener noreferrer\">PHP 7.3<\/a>\u3092\u4f7f\u7528\u3057\u3066\u304a\u308a\u3001\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306ePHP 7.4\u306f\u307e\u3060\u767b\u5834\u3057\u3066\u3044\u307e\u305b\u3093\u3002\u3054\u89a7\u306e\u3068\u304a\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306e23\uff05\u4ee5\u4e0a\u306e\u5927\u591a\u6570\u306f\u307e\u3060PHP 5.6\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_63288\" aria-describedby=\"caption-attachment-63288\" style=\"width: 1390px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-63288\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/2017\/03\/wordpress-php-versions-stats-3.png\" alt=\"WordPress\u306b\u3066\u306e\u5404PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u4f7f\u7528\u7387\" width=\"1390\" height=\"1156\"><figcaption id=\"caption-attachment-63288\" class=\"wp-caption-text\">WordPress\u306b\u3066\u306e\u5404PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u4f7f\u7528\u7387<\/figcaption><\/figure>\n<p>\u3067\u304d\u308c\u3070<a href=\"https:\/\/ja.wordpress.org\/about\/requirements\/\">WordPress\u306e\u516c\u5f0f\u8981\u4ef6<\/a>\u306b\u5f93\u3063\u3066\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/php-versions\/\">\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u30d0\u30fc\u30b8\u30e7\u30f3\u306ePHP<\/a>\u3092\u30b5\u30fc\u30d0\u30fc\u4f1a\u793e\u306b\u4f9d\u983c\u3059\u308b\u3053\u3068\u3092\u5f37\u304f\u304a\u52e7\u3081\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u306e\u57f7\u7b46\u6642\u70b9\uff082019\u5e745\u6708\uff09\u3067\u3001WordPress\u306e\u8981\u4ef6\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ul>\n<li>PHP \u30d0\u30fc\u30b8\u30e7\u30f3 7.3 \u4ee5\u4e0a\u3002<\/li>\n<li>MySQL \u30d0\u30fc\u30b8\u30e7\u30f3 5.6 \u4ee5\u4e0a\u3001\u307e\u305f\u306f <a href=\"https:\/\/kinsta.com\/jp\/blog\/mariadb-vs-mysql\/\">MariaDB<\/a> \u30d0\u30fc\u30b8\u30e7\u30f3 10.1 \u4ee5\u4e0a<\/li>\n<li>HTTPS \u5bfe\u5fdc<\/li>\n<\/ul>\n<h3 class=\"has-anchor-hash\">PHP 7\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<span id=\"php-7-performance\" class=\"anchor-hash\" aria-hidden=\"true\"><\/span><\/h3>\n<p>PHP 7\u306e\u65b9\u304c\u306f\u308b\u304b\u306b\u9ad8\u901f\u3067\u3042\u308b\u3053\u3068\u304c\u8a3c\u660e\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u4e0a\u8a18\u306e\u30c7\u30fc\u30bf\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u89b3\u70b9\u304b\u3089\u3082\u5206\u304b\u308a\u306b\u304f\u3044\u3067\u3059\u3002\u6b21\u306b\u5206\u6790\u30c7\u30fc\u30bf\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u516c\u5f0f\u306ePHP<a href=\"http:\/\/talks.php.net\/fluent15#\/wpbench\" target=\"_blank\" rel=\"noopener noreferrer\">\u30d9\u30f3\u30c1\u30de\u30fc\u30af<\/a>\u3067\u306f\u3001PHP 7\u3092PHP 5.6\u3068\u6bd4\u8f03\u3059\u308b\u3068\u30ec\u30a4\u30c6\u30f3\u30b7\u304c\u307b\u307c\u534a\u5206\u3067\u30011\u79d2\u3042\u305f\u308a2\u500d\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u5b9f\u884c\u3055\u308c\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/li>\n<li>Christian Vigh\u3082<a href=\"https:\/\/www.phpclasses.org\/blog\/post\/493-php-performance-evolution.html\" target=\"_blank\" rel=\"noopener noreferrer\">PHP\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03<\/a>\u3092\u516c\u958b\u3057\u3001PHP 5.2\u304cPHP 7\u3088\u308a\u3082400\uff05\u9045\u3044\u3053\u3068\u304c\u5224\u660e\u3057\u307e\u3057\u305f\u3002<\/li>\n<li>Andrei Avram\u306f\u3001PHP 7.3\u3068\u6bd4\u3079\u3066PHP 7.4\u306e\u65b9\u304c<a href=\"https:\/\/blog.andreiavram.ro\/updates-php-performance-increase\/\">\u5b9f\u884c\u6642\u9593\u304c\u77ed\u304f\u3001\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u304c\u5c11\u306a\u3044<\/a>\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002<\/li>\n<li>Phoronix\u306f\u3001<a href=\"https:\/\/phoronix.com\/scan.php?page=news_item&#038;px=PHP-7.4-Early-Benchmarks\">PHP 7.4 Alpha\u3067\u521d\u671f\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u30c6\u30b9\u30c8\u3092\u5b9f\u884c<\/a>\u3057\u3066\u3001PHP 7.3\u3088\u308a\u5c11\u3057\u901f\u3044\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/li>\n<\/ul>\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">Upgraded my <a href=\"https:\/\/twitter.com\/kinsta?ref_src=twsrc%5Etfw\">@kinsta<\/a> site to PHP 7.4 and it is like 10x faster. Woot!<\/p>\n<p>&mdash; Ronald Huereca (@RonaldHuereca) <a href=\"https:\/\/twitter.com\/RonaldHuereca\/status\/1201513866313777158?ref_src=twsrc%5Etfw\">December 2, 2019<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>\u5f53\u793e\u3082\u72ec\u81ea\u306ePHP 7.3\u306e<a href=\"https:\/\/kinsta.com\/jp\/blog\/php-5-6%e3%80%817-0%e3%80%817-1%e3%80%817-2%e3%80%817-3%e3%81%be%e3%81%9f%e3%81%af7-4%e3%81%ae%e3%83%99%e3%83%b3%e3%83%81%e3%83%9e%e3%83%bc%e3%82%af%ef%bc%882020%e5%b9%b4%ef%bc%89\/\" target=\"_blank\" rel=\"noopener noreferrer\">PHP\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30d9\u30f3\u30c1\u30de\u30fc\u30af<\/a>\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u3001PHP 7.3\u3067\u306fPHP 5.6\u3068\u6bd4\u8f03\u3057\u30661\u79d2\u9593\u306b\u7d043\u500d\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\uff08\u30ea\u30af\u30a8\u30b9\u30c8\uff09\u304c\u5b9f\u884c\u3067\u304d\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<strong>\u65e9\u3044\u3046\u3061\u306bPHP 7.4\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3082\u516c\u958b\u3059\u308b\u4e88\u5b9a\u3067\u3059\uff01<\/strong><\/p>\n<figure style=\"width: 940px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/12\/wordpress-5.0-php-benchmarks-v2-1.png\" alt=\"WordPress 5.0 \u306ePHP\u30d9\u30f3\u30c1\u30de\u30fc\u30af\" width=\"940\" height=\"788\"><figcaption class=\"wp-caption-text\">WordPress 5.0 \u306ePHP\u30d9\u30f3\u30c1\u30de\u30fc\u30af<\/figcaption><\/figure>\n<ul>\n<li>WordPress 5.0 PHP 5.6\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u7d50\u679c\uff1a91.64\u30ea\u30af\u30a8\u30b9\u30c8\/\u79d2<\/li>\n<li>WordPress 5.0 PHP 7.0\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u7d50\u679c\uff1a206.71\u30ea\u30af\u30a8\u30b9\u30c8\/\u79d2<\/li>\n<li>WordPress 5.0 PHP 7.1\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u7d50\u679c\uff1a210.98\u30ea\u30af\u30a8\u30b9\u30c8\/\u79d2<\/li>\n<li>WordPress 5.0 PHP 7.2\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u7d50\u679c\uff1a229.18\u30ea\u30af\u30a8\u30b9\u30c8\/\u79d2<\/li>\n<li>WordPress 5.0 <strong>PHP 7.3\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u7d50\u679c\uff1a253.20\u30ea\u30af\u30a8\u30b9\u30c8\/\u79d2\ud83c\udfc6<\/strong><\/li>\n<\/ul>\n<p>\u7b2c\u4e09\u8005\u30d7\u30e9\u30b0\u30a4\u30f3\u307e\u305f\u306f\u30c6\u30fc\u30de\u3092\u3059\u3079\u3066\u8a66\u9a13\u3057\u3066\u6b63\u5e38\u306b\u6a5f\u80fd\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u7406\u7531\u3067\u66f4\u65b0\u3057\u3066\u3044\u306a\u3044\u65b9\u3082\u591a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u5358\u7d14\u306b\u307e\u3060\u3067\u304d\u3066\u3044\u306a\u3044\u3068\u3044\u3046\u65b9\u3082\u591a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<h3 class=\"has-anchor-hash\">\u3054\u5229\u7528\u306ePHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3059\u308b<span id=\"checking-your-php-version\" class=\"anchor-hash\" aria-hidden=\"true\"><\/span><\/h3>\n<p>\u3054\u5229\u7528\u306ePHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u4e0d\u660e\u306a\u65b9\u306f\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/pingdom-speed-test\/\" target=\"_blank\" rel=\"noopener noreferrer\">Pingdom<\/a>\u307e\u305f\u306fGoogle Chrome\u306eDevtools\u306e\u3088\u3046\u306a\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u3001\u7c21\u5358\u306b\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u6700\u521d\u306eHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u30d8\u30c3\u30c0\u306b\u306f\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<figure style=\"width: 1542px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/06\/check-php-version-pingdom.png\" alt=\"Pingdom\u3092\u4f7f\u7528\u3057\u3066PHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3059\u308b\" width=\"1542\" height=\"864\"><figcaption class=\"wp-caption-text\">Pingdom\u3092\u4f7f\u7528\u3057\u3066PHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3059\u308b<\/figcaption><\/figure>\n<p>\u7d50\u679c\u304c\u51fa\u308b\u304b\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u4f1a\u793e\u304c<code>X-Powered-By<\/code>\u30d8\u30c3\u30c0\u30fc\u306e\u5024\u3092\u5909\u66f4\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u306b\u3088\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001Kinsta\u3092\u542b\u3080\u591a\u304f\u306e\u30b5\u30fc\u30d0\u30fc\u4f1a\u793e\u304c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u7406\u7531\u304b\u3089\u305d\u306e\u5024\u3092\u5909\u66f4\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/wordpress-5-2\/\">WordPress 5.2<\/a>\u4ee5\u964d\u3067\u306f\u3001\u65b0\u3057\u3044\u30b5\u30a4\u30c8\u30d8\u30eb\u30b9\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u300c\u30c4\u30fc\u30eb\u300d\u2192\u300c\u30b5\u30a4\u30c8\u30d8\u30eb\u30b9\u300d\u2192\u300c\u60c5\u5831\u300d\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u3001\u300c\u30b5\u30fc\u30d0\u30fc\u300d\u30bb\u30af\u30b7\u30e7\u30f3\u306b\u30b5\u30fc\u30d0\u30fc\u306ePHP\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<figure style=\"width: 1954px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/06\/check-php-version-wordpress-site-health.png\" alt=\"WordPress\u306e\u30b5\u30a4\u30c8\u30d8\u30eb\u30b9\u30c4\u30fc\u30eb\u3067PHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3059\u308b\" width=\"1954\" height=\"720\"><figcaption class=\"wp-caption-text\">WordPress\u306e\u30b5\u30a4\u30c8\u30d8\u30eb\u30b9\u30c4\u30fc\u30eb\u3067PHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3059\u308b<\/figcaption><\/figure>\n<p>\u3042\u308b\u3044\u306f\u3001WordPress\u7ba1\u7406\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306e\u30d5\u30c3\u30bf\u30fc\u306b\u57fa\u672c\u7684\u306a\u30b5\u30fc\u30d0\u30fc\u60c5\u5831\u3092\u8868\u793a\u3059\u308b\u3001<a href=\"https:\/\/wordpress.org\/plugins\/version-info\/\" target=\"_blank\" rel=\"noopener noreferrer\">Version Info<\/a>\u306a\u3069\u306e\u7121\u6599\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u306f\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/php-versions\/\" target=\"_blank\" rel=\"noopener noreferrer\">FTP\u7d4c\u7531\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b<\/a>\u3053\u3068\u3082\u3001\u30b5\u30fc\u30d0\u30fc\u4f1a\u793e\u306b\u4f9d\u983c\u3059\u308b\u3053\u3068\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3 class=\"has-anchor-hash\">PHP 7.4\u306b\u66f4\u65b0\u3059\u308b<span id=\"updating-to-php-73\" class=\"anchor-hash\" aria-hidden=\"true\"><\/span><\/h3>\n<p><strong>Kinsta\u3067\u306f\u3001PHP 7.4\u306e\u6700\u65b0\u7248\u3092\u3054\u5229\u7528\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/strong>\u307e\u305f\u306f\u3001WordPress\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092<a href=\"https:\/\/kinsta.com\/jp\/blog\/install-wordpress-locally\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30ed\u30fc\u30ab\u30eb\u3067\u30c6\u30b9\u30c8\u3059\u308b<\/a>\u3053\u3068\u3001PHP\u306e\u8907\u6570\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u8a66\u9a13\u3067\u304d\u308b<a href=\"https:\/\/docs.docker.com\/get-started\/\" target=\"_blank\" rel=\"noopener noreferrer\">Docker<\/a>\u306a\u3069\u306e\u74b0\u5883\u3067\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u7c21\u5358\u306b\u30c6\u30b9\u30c8\u3092\u884c\u3046\u306b\u306f\u3001Kinsta\u3067\u672c\u756a\u30b5\u30a4\u30c8\u306b\u3088\u308a\u8fd1\u3044\u3082\u306e\u306b\u306a\u308b<a href=\"https:\/\/kinsta.com\/jp\/docs\/wordpress-hosting\/staging-environment\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u74b0\u5883<\/a>\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002MyKinsta\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3067\u30b5\u30a4\u30c8\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001\u74b0\u5883\u3092\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u306b\u5207\u308a\u66ff\u3048\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_31287\" aria-describedby=\"caption-attachment-31287\" style=\"width: 1439px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-31287 size-full\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/07\/create-wp-staging-environment0.png\" alt=\"WordPress\u306e\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u74b0\u5883\u3092\u4f5c\u6210\u3059\u308b\" width=\"1439\" height=\"787\" srcset=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/07\/create-wp-staging-environment0.png 1439w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/07\/create-wp-staging-environment0-300x164.png 300w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/07\/create-wp-staging-environment0-1024x560.png 1024w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/07\/create-wp-staging-environment0-768x420.png 768w\" sizes=\"auto, (max-width: 1439px) 100vw, 1439px\" \/><figcaption id=\"caption-attachment-31287\" class=\"wp-caption-text\">WordPress\u306e\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u74b0\u5883\u3092\u4f5c\u6210\u3059\u308b<\/figcaption><\/figure>\n<p>\u6b21\u306b\u3001\u300c\u30c4\u30fc\u30eb\u300d\u30e1\u30cb\u30e5\u30fc\u3067\u3001PHP\u30a8\u30f3\u30b8\u30f3\u3092PHP 7.4\u306b\u5207\u308a\u66ff\u3048\u3066\u3001\u30b3\u30fc\u30c9\u3001\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u88fd\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3001\u5229\u7528\u4e2d\u306e\u30c6\u30fc\u30de\u306a\u3069\u306e\u4e92\u63db\u6027\u30c6\u30b9\u30c8\u3092\u958b\u59cb\u3057\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u524d\u306ePHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u3068\u540c\u69d8\u306b\u3001\u5f53\u793e\u306e<a href=\"https:\/\/kinsta.com\/jp\/changelog\/auto-db-optimize\/#selfhealing-php\">PHP\u81ea\u5df1\u4fee\u5fa9\u6a5f\u80fd<\/a>\u306f\u5b8c\u5168\u306bPHP 7.4\u5bfe\u5fdc\u3067\u3059\u3002\u3069\u306e\u7406\u7531\u3067\u3082PHP\u304c\u505c\u6b62\u3057\u305f\u5834\u5408\u3001\u81ea\u52d5\u7684\u306b\u518d\u8d77\u52d5\u3057\u307e\u3059\u3002\u518d\u8d77\u52d5\u3057\u3066\u3082\u554f\u984c\u304c\u89e3\u6c7a\u3057\u306a\u3044\u5834\u5408\u306f\u3001\u5f53\u793e\u306e\u76e3\u8996\u30b7\u30b9\u30c6\u30e0\u304c\u554f\u984c\u306e\u539f\u56e0\u3092\u8abf\u67fb\u3059\u308b\u305f\u3081\u306b\u5f53\u793e\u306e<a href=\"https:\/\/kinsta.com\/jp\/blog\/sysadmin\/\">\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u30c1\u30fc\u30e0<\/a>\u306b\u8b66\u544a\u3092\u767a\u3057\u307e\u3059\u3002<\/p>\n<aside role=\"note\" class=\"wp-block-kinsta-notice is-style-important\">\n            <h3>Important<\/h3>\n        <p>PHP 7.4\u306f\u516c\u5f0f\u30ea\u30ea\u30fc\u30b9\u3067\u3059\u304c\u3001\u672c\u756a\u30b5\u30a4\u30c8\u3067\u4f7f\u7528\u3059\u308b\u524d\u306b\u5fc5\u305a<strong>\u30c6\u30b9\u30c8\u3092\u884c\u3046\u3053\u3068\u3092\u5f37\u304f\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/strong><\/p>\n<\/aside>\n\n<figure id=\"attachment_31288\" aria-describedby=\"caption-attachment-31288\" style=\"width: 1427px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-31288 size-full\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/07\/mykinsta-php-7-40.png\" alt=\"PHP 7.4\u3078\u306e\u5207\u308a\u66ff\u3048\" width=\"1427\" height=\"788\" srcset=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/07\/mykinsta-php-7-40.png 1427w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/07\/mykinsta-php-7-40-300x166.png 300w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/07\/mykinsta-php-7-40-1024x565.png 1024w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/07\/mykinsta-php-7-40-768x424.png 768w\" sizes=\"auto, (max-width: 1427px) 100vw, 1427px\" \/><figcaption id=\"caption-attachment-31288\" class=\"wp-caption-text\">PHP 7.4\u3078\u306e\u5207\u308a\u66ff\u3048<\/figcaption><\/figure>\n<p><a href=\"https:\/\/kinsta.com\/jp\/changelog\/php-7-4\/\">PHP 7.4\u306eKinsta\u3067\u306e\u30ea\u30ea\u30fc\u30b9<\/a>.\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>Docker\u306bPHP 7.4\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u5b9f\u884c\u3059\u308b<\/h3>\n<p>Docker\u3092\u3054\u5229\u7528\u3057\u307e\u3059\u304b\uff1f\u5e78\u3044\u306a\u3053\u3068\u306b\u3001PHP 7.4\u3092\u624b\u52d5\u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u3066\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3054\u5229\u7528\u306e\u30b7\u30b9\u30c6\u30e0\u306bDocker\u304c\u65e2\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u975e\u516c\u5f0f\u306e<a href=\"https:\/\/github.com\/devilbox\/docker-php-fpm-7.4\">PHP-FPM 7.4 Docker Image<\/a>\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001\u6570\u79d2\u3067\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u304b\u3089\u30c6\u30b9\u30c8\u3092\u5b9f\u884c\u3059\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n<figure style=\"width: 570px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/05\/installing-php74-nginx-2.png\" alt=\"Nginx Docker Image\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\" width=\"570\" height=\"365\"><figcaption class=\"wp-caption-text\">Nginx Docker Image\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/figcaption><\/figure>\n<p>PHP 7.4\u306e\u30b3\u30fc\u30c9\u3092\u30d6\u30e9\u30a6\u30b6\u3067\u5b9f\u884c\u3057\u305f\u3044\u65b9\u306f\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/nginx-vs-apache\/\">Nginx\u307e\u305f\u306fApache<\/a>\u306e\u30a4\u30e1\u30fc\u30b8\u30d5\u30a1\u30a4\u30eb\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5fc3\u914d\u3044\u308a\u307e\u305b\u3093\u3002 <a href=\"https:\/\/github.com\/devilbox\/docker-php-fpm-7.4#example\">\u958b\u767a\u8005\u306e\u6307\u793a<\/a>\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044\u3002Docker\u306eImage\u30da\u30fc\u30b8\u304b\u3089\u30b3\u30de\u30f3\u30c9\u3092\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u306b\u30b3\u30d4\u30fc\u3057\u3066\u8cbc\u308a\u4ed8\u3051\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001PHP 7.4\u306e\u30ea\u30ea\u30fc\u30b9\u3067\u4e88\u60f3\u3055\u308c\u308b\u591a\u6570\u306e\u5909\u66f4\u70b9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3057\u305f\u3002\u516c\u5f0f\u306eRFC\u6587\u66f8\u3068\u6a5f\u80fd\u306e\u5b8c\u5168\u306a\u30ea\u30b9\u30c8\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8cc7\u6599\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/wiki.php.net\/rfc#php_74\">PHP 7.4\u306e\u30b3\u30e1\u30f3\u30c8\u52df\u96c6<\/a><\/li>\n<li><a href=\"https:\/\/github.com\/php\/php-src\/blob\/PHP-7.4\/UPGRADING\">PHP 7.4\u306e\u66f4\u65b0\u306e\u6ce8\u610f\u4e8b\u9805<\/a><\/li>\n<li><a href=\"https:\/\/wiki.php.net\/todo\/php74\">PHP 7.4\u306e\u6e96\u5099\u4e8b\u9805<\/a><\/li>\n<\/ul>\n<p>PHP 7.4\u3068\u305d\u306e\u30ea\u30ea\u30fc\u30b9\u306b\u95a2\u3059\u308b\u6700\u65b0\u60c5\u5831\u3092\u5e38\u306b\u304a\u77e5\u3089\u305b\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002Kinsta\u306e\u304a\u5ba2\u3055\u307e\u306b\u306f\u3001\u4eca\u3059\u3050\u3067\u3082PHP\u306e\u6700\u65b0\u7248\u306b\u5207\u308a\u66ff\u3048\u3066\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/kinsta.com\/jp\/blog\/install-php\/\">PHP 7.4\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3001\u30c6\u30b9\u30c8<\/a>\u3059\u308b\u4e88\u5b9a\u3067\u3059\u304b\uff1f\u304a\u597d\u307f\u306e\u65b0\u6a5f\u80fd\u306f\u4f55\u3067\u3059\u304b\uff1f \u30b3\u30e1\u30f3\u30c8\u3067\u3082\u66f8\u3044\u3066\u3001\u3054\u7d4c\u9a13\u306b\u3064\u3044\u3066\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div id=\"gtx-trans\">\n<div class=\"gtx-trans-icon\"><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>PHP 7\u306e\u6b21\u306e\u30de\u30a4\u30ca\u30fc\u30ea\u30ea\u30fc\u30b9\u3067\u3042\u308bPHP 7.4 &#8230;<\/p>\n","protected":false},"author":36,"featured_media":23624,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kinsta_gated_content":false,"_kinsta_gated_content_redirect":"","footnotes":""},"tags":[40,45],"topic":[798],"class_list":["post-23612","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-php","tag-webdev","topic-php-updates"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.6 (Yoast SEO v24.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PHP 7.4\u306e\u65b0\u6a5f\u80fd\uff08\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308b\u3082\u306e\u3001\u6a5f\u80fd\u3001\u30b9\u30d4\u30fc\u30c9\uff09<\/title>\n<meta name=\"description\" content=\"PHP 7.4\u3067\u306f\u3001\u65b0\u6a5f\u80fd\u3001\u975e\u63a8\u5968\u6a5f\u80fd\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u304c\u884c\u308f\u308c\u308b\u4e88\u5b9a\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001PHP 7.4\u306e\u65b0\u6a5f\u80fd\u306e\u6982\u8981\u3092\u8a73\u3057\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kinsta.com\/jp\/blog\/php-7-4\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PHP 7.4\u306e\u65b0\u6a5f\u80fd\uff08\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308b\u3082\u306e\u3001\u6a5f\u80fd\u3001\u30b9\u30d4\u30fc\u30c9\uff09\" \/>\n<meta property=\"og:description\" content=\"PHP 7.4\u3067\u306f\u3001\u65b0\u6a5f\u80fd\u3001\u975e\u63a8\u5968\u6a5f\u80fd\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u304c\u884c\u308f\u308c\u308b\u4e88\u5b9a\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001PHP 7.4\u306e\u65b0\u6a5f\u80fd\u306e\u6982\u8981\u3092\u8a73\u3057\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kinsta.com\/jp\/blog\/php-7-4\/\" \/>\n<meta property=\"og:site_name\" content=\"Kinsta\u00ae\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Kinsta-Japan-334616080691171\/\" \/>\n<meta property=\"article:published_time\" content=\"2019-07-15T18:55:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-09-05T05:31:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/07\/php-7.4.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1460\" \/>\n\t<meta property=\"og:image:height\" content=\"730\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Carlo Daniele\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:description\" content=\"PHP 7.4\u3067\u306f\u3001\u65b0\u6a5f\u80fd\u3001\u975e\u63a8\u5968\u6a5f\u80fd\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u304c\u884c\u308f\u308c\u308b\u4e88\u5b9a\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001PHP 7.4\u306e\u65b0\u6a5f\u80fd\u306e\u6982\u8981\u3092\u8a73\u3057\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/07\/php-7.4.jpg\" \/>\n<meta name=\"twitter:creator\" content=\"@carlodaniele\" \/>\n<meta name=\"twitter:site\" content=\"@Kinsta_JP\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"Carlo 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