{"id":21959,"date":"2018-11-04T05:18:04","date_gmt":"2018-11-04T13:18:04","guid":{"rendered":"https:\/\/kinsta.com\/?p=31095"},"modified":"2023-08-26T00:09:50","modified_gmt":"2023-08-25T15:09:50","slug":"php-7-3","status":"publish","type":"post","link":"https:\/\/kinsta.com\/jp\/blog\/php-7-3\/","title":{"rendered":"PHP 7.3\u306e\u65b0\u6a5f\u80fd\uff08Kinsta\u3067\u5229\u7528\u53ef\u80fd\uff09"},"content":{"rendered":"<p>2018\u5e7412\u67086\u65e5\u306b\u3001PHP\u306e\u6700\u65b0\u7248\u3067\u3042\u308bPHP 7.3\u304c\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3057\u305f\uff01\u65b0\u3057\u304f\u3066\u4fbf\u5229\u306a\u6a5f\u80fd\u304c\u767b\u5834\u3057\u3001\u95a2\u6570\u306e\u4e00\u5206\u304c\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308a\u3001\u30d0\u30b0\u4fee\u6b63\u304c\u6570\u591a\u304f\u884c\u308f\u308c\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002PHP 7.3\u306fKinsta\u306e\u3059\u3079\u3066\u306e\u304a\u5ba2\u69d8\u3092\u5bfe\u8c61\u306b<a href=\"https:\/\/my.kinsta.com\/sites\/tools\/?lang=ja\" target=\"_blank\" rel=\"noopener noreferrer\">MyKinsta\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9<\/a>\u3067\u5229\u7528\u53ef\u80fd\u306b\u306a\u3063\u3066\u304a\u308a\u307e\u3059\u3002\ud83e\udd18<\/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 7.3\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>\u672c\u8a18\u4e8b\u3067\u306f\u3001\u50d5\u3089\u304c\u500b\u4eba\u7684\u306b\u6700\u3082\u91cd\u8981\u3060\u3068\u5224\u65ad\u3057\u305f\u6a5f\u80fd\u3068\u5909\u66f4\u70b9\u306e\u6982\u8981\u3092\u3054\u8aac\u660e\u3057\u307e\u3059\u3002 \u6a5f\u80fd\u3068\u30d0\u30b0\u4fee\u6b63\u306e\u5b8c\u5168\u306a\u30ea\u30b9\u30c8\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/github.com\/php\/php-src\/blob\/php-7.3.0beta1\/UPGRADING\" target=\"_blank\" rel=\"noopener noreferrer\">PHP 7.3\u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u30ce\u30fc\u30c8<\/a>\u3068<a href=\"https:\/\/wiki.php.net\/rfc#php_73\" target=\"_blank\" rel=\"noopener noreferrer\">PHP 7.3\u306e\u30b3\u30e1\u30f3\u30c8\u52df\u96c6<\/a>\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n\n<h2>PHP 7.3\u306e\u91cd\u8981\u306a\u5909\u66f4\u70b9\u306b\u3064\u3044\u3066<\/h2>\n<p>\u672c\u8a18\u4e8b\u3067\u306fPHP 7.3\u306e\u6b21\u306e\u5909\u66f4\u70b9\u306b\u3064\u3044\u3066\u8ff0\u3079\u307e\u3059\uff1a<\/p>\n<ul>\n<li><a href=\"#flexible-heredoc-nowdoc\">\u30d5\u30ec\u30ad\u30b7\u30d6\u30eb\u306aHeredoc\u69cb\u6587\u3068Nowdoc\u69cb\u6587<\/a><\/li>\n<li><a href=\"#trailing-comma-in-function-calls\">\u95a2\u6570\u547c\u3073\u51fa\u3057\u3067\u672b\u5c3e\u30ab\u30f3\u30de\u304c\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308b<\/a><\/li>\n<li><a href=\"#JSON_THROW_ON_ERROR\">JSON_THROW_ON_ERROR<\/a><\/li>\n<li><a href=\"#list\">list() \u3067\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u6e21\u3057\u304c\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308b<\/a><\/li>\n<li><a href=\"#is-countable\">is_countable\u95a2\u6570<\/a><\/li>\n<li><a href=\"#array-key-first-last\">array_key_first()\u3001array_key_last()<\/a><\/li>\n<li><a href=\"#argon2\">Argon2\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\u306e\u5f37\u5316<\/a><\/li>\n<li><a href=\"#deprecations\">\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308b\u3082\u306e<\/a><\/li>\n<\/ul>\n<h2>\u30d5\u30ec\u30ad\u30b7\u30d6\u30eb\u306aHeredoc\u69cb\u6587\u3068Nowdoc\u69cb\u6587<\/h2>\n<p>PHP 7.3\u306e\u6700\u3082\u91cd\u8981\u306a\u6539\u5584\u70b9\u306e1\u3064\u3067\u3042\u308b\u3066\u3081\u3001\u975e\u5e38\u306b\u8208\u5473\u6df1\u3044\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001PHP 7.3\u306eheredoc\/nowdoc\u306e\u5909\u66f4\u70b9\u306b\u3064\u3044\u3066\u8ff0\u3079\u308b\u524d\u306b\u3001\u3053\u308c\u3089\u306e\u4fbf\u5229\u306a\u30b3\u30a2\u6a5f\u80fd\u306e\u6982\u8981\u3092\u7c21\u5358\u306b\u3054\u8aac\u660e\u3057\u307e\u3059\u3002nowdoc\u3068heredoc\u306b\u3059\u3067\u306b\u3054\u81ea\u4fe1\u306e\u3042\u308b\u65b9\u306f\u3001PHP 7.3\u306e\u5909\u66f4\u70b9\u306b\u30b9\u30ad\u30c3\u30d7\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><a href=\"#heredoc-nowdoc-overview\">heredoc\u3068nowdoc\u69cb\u6587\u306e\u6982\u8981<\/a><\/li>\n<li><a href=\"#heredoc-nowdoc-indentation\">PHP 7.3: \u7d42\u7aef ID\u306e\u30a4\u30f3\u30c7\u30f3\u30c8\u3001\u884c\u982d\u30b9\u30da\u30fc\u30b9\u306e\u524a\u9664\u304c\u53ef\u80fd\u306b\u306a\u308b<\/a><\/li>\n<li><a href=\"#heredoc-nowdoc-closing-marker\">PHP 7.3: \u7d42\u7aefID\u306e\u6539\u884c\u8981\u4ef6\u304c\u524a\u9664\u3055\u308b<\/a><\/li>\n<\/ul>\n<h3 id=\"heredoc-nowdoc-overview\">heredoc\u3068nowdoc\u69cb\u6587\u306e\u6982\u8981<\/h3>\n<p><strong>heredoc\u69cb\u6587\u306f\u3001\u5927\u91cf\u306e\u30c6\u30ad\u30b9\u30c8\u3092\u4e8c\u91cd\u5f15\u7528\u7b26\u306e\u5fc3\u914d\u306e\u306a\u3044\u57cb\u3081\u8fbc\u307f\u65b9\u6cd5\u3067\u3059\u3002<\/strong>heredoc\u306f<code>&lt;&lt;&lt;<\/code>\u306e\u5f8c\u306bID\u304c\u3042\u308a\u3001\u7d42\u308f\u308a\u306b\u540c\u3058ID\u3068\u30bb\u30df\u30b3\u30ed\u30f3\u304c\u3042\u308a\u307e\u3059\u3002\u6b21\u306b\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">print &lt;&lt;&lt;EOT\nHeredoc text behaves just like a double-quoted string, without the double quotes.\nEOT;<\/code><\/pre>\n<p>nowdoc\u306fheredoc\u3068\u4f3c\u305f\u3088\u3046\u306b\u6a5f\u80fd\u3057\u307e\u3059\u304c\u3001\u6b21\u306e\u7570\u306a\u308b\u70b9\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n<ul>\n<li>\u8b58\u5225\u5b50\u3092\u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8\u3067\u56f2\u3093\u3067\u3044\u308b\u3088\u3046\u306b\u3057\u307e\u3059\uff08<code>&lt;&lt;&lt;'EOT'<\/code>\uff09\u3002<\/li>\n<li>nowdoc\u5185\u306e\u30d1\u30fc\u30b9\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<p>nowdoc\u306e\u4f8b\u3092\u6b21\u306b\u793a\u3057\u307e\u3059\uff1a<\/p>\n<pre><code class=\"language-php\">print &lt;&lt;&lt;'EOT'\nNowdocs are to single-quoted strings what heredocs are to double-quoted strings.\nEOT;<\/code><\/pre>\n<p>heredoc\u3068nowdoc\u306e\u7d42\u7aef ID\u306e\u898f\u5247\u306f\u540c\u3058\u3067\u3059\uff1a<\/p>\n<ol>\n<li>\u7d42\u7aef ID \u306f\u3001\u305d\u306e\u884c\u306e\u6700\u521d\u306e\u30ab\u30e9\u30e0\u304b\u3089\u59cb\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li>\u4f7f\u7528\u3059\u308b\u30e9\u30d9\u30eb\u306f\u3001PHP \u306e\u4ed6\u306e\u30e9\u30d9\u30eb\u3068\u540c\u69d8\u306e\u547d\u540d\u898f\u5247\u306b\u5f93\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u82f1\u6570\u5b57\u304a\u3088\u3073\u30a2\u30f3\u30c0\u30fc\u30b9\u30b3\u30a2\u306e\u307f\u3092\u542b\u307f\u3001 \u6570\u5b57\u3067\u306a\u3044\u6587\u5b57\u307e\u305f\u306f\u30a2\u30f3\u30c0\u30fc\u30b9\u30b3\u30a2\u3067\u59cb\u307e\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n<p><a href=\"http:\/\/php.net\/manual\/en\/language.types.string.php#language.types.string.syntax.heredoc\" target=\"_blank\" rel=\"noopener noreferrer\">PHP\u30de\u30cb\u30e5\u30a2\u30eb<\/a>\u306e\u8b66\u544a\u3067\u3059\u304c\u3001<\/p>\n<blockquote><p>\u975e\u5e38\u306b\u91cd\u8981\u306a\u3053\u3068\u3067\u3059\u304c\u3001\u7d42\u7aef ID \u304c\u3042\u308b\u884c\u306b\u306f\u3001\u30bb\u30df\u30b3\u30ed\u30f3 (;) \u4ee5\u5916\u306e\u4ed6\u306e\u6587\u5b57\u304c\u542b\u307e\u308c\u3066\u3044\u3066\u306f\u306a\u3089\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u308c\u306f\u3001\u7279\u306b ID \u306f\u30a4\u30f3\u30c7\u30f3\u30c8\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3001\u30bb\u30df\u30b3\u30ed\u30f3\u306e\u524d\u306b\u7a7a\u767d\u3084\u30bf\u30d6\u3092\u4ed8\u3051\u3066\u306f\u3044\u3051\u306a\u3044\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u7d42\u7aef ID \u306e\u524d\u306e\u6700\u521d\u306e\u6587\u5b57\u306f\u3001\u4f7f\u7528\u3059\u308b\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u3067\u5b9a\u7fa9\u3055\u308c\u305f \u6539\u884c\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308b\u3053\u3068\u306b\u3082\u6ce8\u610f\u3092\u8981\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u4f8b\u3048\u3070\u3001Macintosh\u3067\u306f \\r \u3068\u306a\u308a\u307e\u3059\u3002 \u6700\u5f8c\u306e\u533a\u5207\u308a\u6587\u5b57\u306e\u5f8c\u306b\u3082\u307e\u305f\u3001\u6539\u884c\u3092\u5165\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p><\/blockquote>\n<p><strong>PHP 7.2 \u306e\u7121\u52b9\u306a\u69cb\u6587\uff1a<\/strong><\/p>\n<pre><code class=\"language-php\">class foo {\n    public $bar = &lt;&lt;&lt;EOT\n    bar\n    EOT;\n}\n\/\/ Identifier must not be indented<\/code><\/pre>\n<p><strong>PHP 7.2\u00a0\u306e\u6709\u52b9\u306a\u69cb\u6587\uff1a<\/strong><\/p>\n<pre><code class=\"language-php\">class foo {\n    public $bar = &lt;&lt;&lt;EOT\nbar\nEOT;\n}<\/code><\/pre>\n<p>\u7c21\u5358\u306b\u3044\u3046\u3068PHP 7.2\u3060\u3068\uff1a<\/p>\n<ul>\n<li>\u7d42\u7aef ID\u306f\u30a4\u30f3\u30c7\u30f3\u30c8\u306e\u3082\u306e\u306b\u3057\u307e\u3059\u3002<\/li>\n<li>\u7d42\u7aef ID\u306e\u3042\u308b\u884c\u306b\u306f\u30b9\u30da\u30fc\u30b9\u3084\u30bf\u30d6\u306a\u3069\u306e\u6587\u5b57\u3092\u542b\u3081\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/li>\n<li>\u7d42\u7aef ID\u306e\u524d\u306e\u6700\u521d\u306e\u6587\u5b57\u306f\u6539\u884c\u306b\u3057\u307e\u3059\u3002<\/li>\n<li>\u7d42\u7aef ID\u306e\u5f8c\u306b\u6539\u884c\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>heredoc\u69cb\u6587\u3068nowdoc\u69cb\u6587\u306f\u304b\u306a\u308a\u53b3\u3057\u3044\u3067\u3059\u304c\u3001PHP 7.3\u3067\u306f\u4ee5\u4e0b\u306e\u70b9\u304c\u6539\u5584\u3055\u308c\u308b\u305f\u3081\u3001\u5c11\u3057\u697d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3 id=\"heredoc-nowdoc-indentation\">1. \u7d42\u7aef ID\u306e\u30a4\u30f3\u30c7\u30f3\u30c8\u3001\u884c\u982d\u30b9\u30da\u30fc\u30b9\u306e\u524a\u9664\u304c\u53ef\u80fd\u306b\u306a\u308b<\/h3>\n<p><strong>PHP 7.3\u3067\u306f\u7d42\u7aef ID\u306e\u30a4\u30f3\u30c7\u30f3\u30c8\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001<\/strong>\u6b21\u306e\u30b3\u30fc\u30c9\u3082\u9060\u616e\u306a\u304f\u66f8\u3051\u307e\u3059\uff1a<\/p>\n<pre><code class=\"language-php\">class foo {\n    public $bar = &lt;&lt;&lt;EOT\n        bar\n    EOT;\n}<\/code><\/pre>\n<p>\u7d42\u7aef ID\u306e\u30a4\u30f3\u30c7\u30f3\u30c8\u306f\u3001\u5404\u884c\u304b\u3089\u524a\u9664\u3055\u308c\u308b\u30b9\u30da\u30fc\u30b9\uff08\u307e\u305f\u306f\u30bf\u30d6\uff09\u306e\u6570\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<strong>\u7d42\u7aefID\u306e\u30a4\u30f3\u30c7\u30f3\u30c8\u306f\u3001\u672c\u4f53\u306e\u305d\u306e\u4ed6\u306e\u884c\u306e\u30a4\u30f3\u30c7\u30f3\u30c8\u3088\u308a\u3082\u9577\u3044\u3082\u306e\u306b\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u306e\u3067<\/strong>\u3001\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\uff1a<\/p>\n<pre><code class=\"language-php\">class foo {\n    public $bar = &lt;&lt;&lt;EOT\n    bar\n        EOT;\n}<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u6b21\u306e\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\uff1a<\/p>\n<pre>Parse error: Invalid body indentation level (expecting an indentation at least ...) in %s on line %d<\/pre>\n<p>\u30bf\u30d6\u3068\u30b9\u30da\u30fc\u30b9\u3092\u524a\u9664\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001heredoc\/nowdoc\u306e\u30a4\u30f3\u30c7\u30f3\u30c8\u3092\u30b3\u30fc\u30c9\u306e\u305d\u306e\u4ed6\u306e\u884c\u3068\u540c\u69d8\u306a\u30ec\u30d9\u30eb\u306e\u30a4\u30f3\u30c7\u30f3\u30c8\u306b\u3057\u3001\u672c\u4f53\u306e\u5404\u884c\u306e\u7121\u99c4\u306a\u30b9\u30da\u30fc\u30b9\u304c\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u30a4\u30f3\u30c7\u30f3\u30c8\u306b\u306f\u30bf\u30d6\u3082\u30b9\u30da\u30fc\u30b9\u3082\u4f7f\u7528\u3067\u304d\u307e\u3059\u304c\u3001\u6df7\u305c\u3066\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<strong>\u3064\u307e\u308a\u3001\u7d42\u7aefID\u3068\u672c\u4f53\u306e\u5404\u884c\u3067\u306f\u540c\u3058\u8b58\u5225\u5b50\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/strong>\u30a4\u30f3\u30c7\u30f3\u30c8\u306b\u30bf\u30d6\u3068\u30b9\u30da\u30fc\u30b9\u3092\u6df7\u305c\u308b\u3068\u30d1\u30fc\u30b9\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"heredoc-nowdoc-closing-marker\">2. \u7d42\u7aefID\u306e\u6539\u884c\u8981\u4ef6\u304c\u524a\u9664\u3055\u308b<\/h3>\n<p>\u73fe\u5728\u3001\u7d42\u7aefID\u306e\u6b21\u306b\u6539\u884c\u3057\u3001heredoc\/nowdoc\u3092\u7d42\u4e86\u3057\u307e\u3059\u3002PHP 7.3\u3067\u306f\u3053\u308c\u304c\u6539\u5584\u3055\u308c\u3001heredoc\/nowdoc\u3092\u6539\u884c\u305b\u305a\u306b\u7d42\u4e86\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306fRFC\u306e\u4f8b\u3067\u3059\uff1a<\/p>\n<p><strong>PHP 7.2\u306e\u7121\u52b9\u306a\u69cb\u6587\uff1a<\/strong><\/p>\n<pre><code class=\"language-php\">$values = [&lt;&lt;&lt;END\na\nb\nc\nEND\n, 'd e f'];<\/code><\/pre>\n<p><strong>PHP 7.3\u306e\u6709\u52b9\u306a\u69cb\u6587\uff1a<\/strong><\/p>\n<pre><code class=\"language-php\">$values = [&lt;&lt;&lt;END\na\nb\nc\nEND, 'd e f'];<\/code><\/pre>\n<p>\u3068\u306b\u304b\u304f\u3001ID\u540d\u3092\u5341\u5206\u306b\u6ce8\u610f\u3092\u6255\u3063\u3066\u6c7a\u3081\u307e\u3057\u3087\u3046\u3002heredoc\/nowdoc\u306e\u672c\u6587\u3067\u4f7f\u7528\u3057\u305f\u8a00\u8449\u3068\u4e00\u81f4\u3059\u308bID\u540d\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\uff08\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/wiki.php.net\/rfc\/flexible_heredoc_nowdoc_syntaxes\" target=\"_blank\" rel=\"noopener noreferrer\">RFC<\/a>\u3068<a href=\"https:\/\/github.com\/php\/php-src\/blob\/php-7.3.0beta1\/UPGRADING#L33\" target=\"_blank\" rel=\"noopener noreferrer\">GitHub<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002\uff09<\/p>\n<p>\u4e21\u65b9\u306e\u63d0\u6848\u306f3\u5206\u306e2\u4ee5\u4e0a\u306e\u7968\u3092\u5f97\u3066\u901a\u904e\u3057\u307e\u3057\u305f\u3002<\/p>\n<h4>PHP 7.3 RFC<\/h4>\n<ul>\n<li><a href=\"https:\/\/wiki.php.net\/rfc\/flexible_heredoc_nowdoc_syntaxes\" target=\"_blank\" rel=\"noopener noreferrer\">\u30d5\u30ec\u30ad\u30b7\u30d6\u30eb\u306aHeredoc\u69cb\u6587\u3068Nowdoc\u69cb\u6587<\/a><\/li>\n<\/ul>\n<h4>\u53c2\u7167\u6587\u732e\uff1a<\/h4>\n<ul>\n<li><a href=\"http:\/\/php.net\/manual\/en\/language.types.string.php#language.types.string.syntax.heredoc\" target=\"_blank\" rel=\"noopener noreferrer\">Heredoc\u6587\u5b57\u5217\u69cb\u6587<\/a><\/li>\n<li><a href=\"http:\/\/php.net\/manual\/en\/language.types.string.php#language.types.string.syntax.nowdoc\" target=\"_blank\" rel=\"noopener noreferrer\">Nowdoc\u6587\u5b57\u5217\u69cb\u6587<\/a><\/li>\n<\/ul>\n<h2 id=\"trailing-comma-in-function-calls\">\u95a2\u6570\u547c\u3073\u51fa\u3057\u3067\u672b\u5c3e\u30ab\u30f3\u30de\u304c\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308b<\/h2>\n<p>\u672b\u5c3e\u306e\u30ab\u30f3\u30de\u306f\u3001\u8981\u7d20\u3001\u30d1\u30e9\u30e1\u30fc\u30bf\u3001\u307e\u305f\u306f\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u30ea\u30b9\u30c8\u306b\u8ffd\u52a0\u3055\u308c\u308b\u30ab\u30f3\u30de\u306e\u3053\u3068\u3067\u3059\u3002\u30b3\u30f3\u30de\u304c\u306a\u3044\u305f\u3081\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u306a\u3044\u3088\u3046\u306b\u3001\u65b0\u3057\u3044\u5024\u304c\u983b\u7e41\u306b\u8ffd\u52a0\u3055\u308c\u308b\u3068\u304d\u306b\u30ab\u30f3\u30de\u306f\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3059\u3002PHP\u3067\u306f\u672b\u5c3e\u306e\u30ab\u30f3\u30de\u306f\u914d\u5217\u3067\u4f7f\u7528\u3067\u304d\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/php-7-2\/\" target=\"_blank\" rel=\"noopener noreferrer\">PHP 7.2<\/a>\u4ee5\u964d\u3067\u306f\u540d\u524d\u7a7a\u9593\u306e\u30b0\u30eb\u30fc\u30d7\u6307\u5b9a\u306b\u304a\u3051\u308b\u6700\u5f8c\u306e\u30ab\u30f3\u30de\u3082\u4f7f\u7528\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>PHP 7.3\u4ee5\u964d\u3001\u95a2\u6570\u547c\u3073\u51fa\u3057\u306b\u3082\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u672b\u5c3e\u30ab\u30f3\u30de\u304c\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3042\u308b\u3068\u304d\u306e<a href=\"https:\/\/en.wikipedia.org\/wiki\/Variadic_function\" target=\"_blank\" rel=\"noopener noreferrer\">Variadic functions<\/a>\u306e\u4f8b\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\uff1a<\/p>\n<pre><code class=\"language-php\">foo(\n    $bar,\n    $baz,\n);<\/code><\/pre>\n<p><code>compact()<\/code>\u3092\u4f7f\u3063\u305f\u914d\u5217\u3092\u4f5c\u6210\u3059\u308b\u3068\u304d\u306b\u3001<code>sprintf()<\/code>\u3067\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3055\u308c\u305f\u6587\u5b57\u5217\u3092\u8fd4\u3059\u3068\u304d\u306b\u307e\u305f\u306f\u3001\u914d\u5217\u3092\u30de\u30fc\u30b8\u3059\u308b\u3068\u304d\u306b\u672b\u5c3e\u30ab\u30f3\u30de\u304c\u4fbf\u5229\u3067\u3059\uff1a<\/p>\n<pre><code class=\"language-php\">$newArray = array_merge(\n    $arrayOne,\n    $arrayTwo,\n    ['foo', 'bar'],\n);<\/code><\/pre>\n<p>\u672b\u5c3e\u30ab\u30f3\u30de\u306f\u30c7\u30d0\u30c3\u30b0\u306b\u3082\u4fbf\u5229\u3067\u3059\uff1a<\/p>\n<pre><code class=\"language-php\">var_dump(\n    $foo,\n    $bar,\n    $baz,\n);<\/code><\/pre>\n<p><code>unset()<\/code>\u3068<code>isset()<\/code>\u3068\u4e00\u7dd2\u306b\u4f7f\u7528\u3059\u308c\u3070\u30d1\u30ef\u30fc\u30d5\u30eb\u3067\u3059\uff1a<\/p>\n<pre><code class=\"language-php\">unset(\n    $foo,\n    $bar,\n    $baz,\n);\n\nisset(\n    $foo,\n    $bar,\n    $baz,\n);<\/code><\/pre>\n<p>\u672b\u5c3e\u306e\u30ab\u30f3\u30de\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u3068\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u3067\u3082\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u6ce8\uff1a<strong>\u4eca\u56de\u306e\u5909\u66f4\u306e\u5bfe\u8c61\u306f\u95a2\u6570\u547c\u3073\u51fa\u3057\u306e\u307f\u3067\u3001\u95a2\u6570\u5ba3\u8a00\u69cb\u6587\u306f\u5909\u66f4\u3055\u308c\u307e\u305b\u3093\u3002<\/strong>\u3055\u3089\u306b\u3001\u30b7\u30f3\u30b0\u30eb\u30ab\u30f3\u30de\u3001\u8907\u6570\u306e\u672b\u5c3e\u306e\u30ab\u30f3\u30de\u3001\u5148\u982d\u306e\u30ab\u30f3\u30de\u306f\u8a31\u53ef\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u8ffd\u52a0\u306e\u4f8b\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/wiki.php.net\/rfc\/trailing-comma-function-calls\" target=\"_blank\" rel=\"noopener noreferrer\">RFC<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002\u672cRFC\u306f30\u3046\u3061\u306e10\u306e\u7968\u3092\u5f97\u3066\u901a\u904e\u3057\u307e\u3057\u305f\u3002<\/p>\n<h4>PHP 7.3 RFC<\/h4>\n<ul>\n<li><a href=\"https:\/\/wiki.php.net\/rfc\/flexible_heredoc_nowdoc_syntaxes\" target=\"_blank\" rel=\"noopener noreferrer\">\u30d5\u30ec\u30ad\u30b7\u30d6\u30eb\u306aHeredoc\u69cb\u6587\u3068Nowdoc\u69cb\u6587<\/a><\/li>\n<\/ul>\n<h2 id=\"JSON_THROW_ON_ERROR\">JSON_THROW_ON_ERROR<\/h2>\n<p>PHP 7.3\u306e\u65b0\u3057\u3044\u6a5f\u80fd\u306e\u4e2d\u3067\u6700\u3082\u697d\u3057\u307f\u306b\u3055\u308c\u3066\u3044\u308b\u6a5f\u80fd\u306e1\u3064\u304c\u3001JSON\u30a8\u30e9\u30fc\u306e\u65b0\u3057\u3044\u51e6\u7406\u65b9\u6cd5\u3067\u3059\u3002\u30b3\u30a2\u6a5f\u80fd\u3067\u306f\u306a\u304f\u3001<a href=\"http:\/\/www.php.net\/json_decode\" target=\"_blank\" rel=\"noopener noreferrer\">json_decode()<\/a>\u3068<a href=\"http:\/\/www.php.net\/json_encode\" target=\"_blank\" rel=\"noopener noreferrer\">json_encode()<\/a>\u306e\u30a8\u30e9\u30fc\u52d5\u4f5c\u3092\u5909\u66f4\u3059\u308bJSON\u62e1\u5f35\u6a5f\u80fd\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3067\u3059\u3002<\/p>\n<p>\u73fe\u5728\u3001<code>json_decode()<\/code>\u306f\u5931\u6557\u6642\u306b<code>null<\/code>\u3092\u8fd4\u3057\u307e\u3059\u304c\u3001<code>null<\/code>\u3082\u6709\u52b9\u306a\u7d50\u679c\u306b\u306a\u308a\u307e\u3059\u3002\u51e6\u7406\u306b\u5931\u6557\u3057\u305f\u304b\u3069\u3046\u304b\u304c\u308f\u304b\u308a\u306b\u304f\u3044\u3067\u3059\u3002<\/p>\n<blockquote><p>\u51e6\u7406\u306b\u5931\u6557\u3057\u305f\u304b\u3092\u77e5\u308a\u305f\u3044\u5ea6\u306b<code>json_last_error()<\/code>\u307e\u305f\u306f <code>json_last_error_msg()<\/code>\u3067\u8abf\u3079\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u3044\u3046\u72b6\u614b\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u6a5f\u68b0\u53ef\u8aad\u5f62\u5f0f\u3068\u4eba\u9593\u304c\u5224\u8aad\u53ef\u80fd\u306a\u5f62\u5f0f\u3067\u30b0\u30ed\u30fc\u30d0\u30eb\u30a8\u30e9\u30fc\u72b6\u614b\u3092\u8fd4\u3057\u307e\u3059\u3002 &#8211; <a href=\"https:\/\/wiki.php.net\/rfc\/json_throw_on_error\" target=\"_blank\" rel=\"noopener noreferrer\">PHP RFC<\/a><\/p><\/blockquote>\n<p><code>json_encode()<\/code>\u306f\u5931\u6557\u6642\u306b <code>FALSE<\/code>\u3092\u8fd4\u3057\u307e\u3059\u3002\u660e\u3089\u304b\u306b\u30a8\u30e9\u30fc\u306e\u5024\u3067\u3042\u308b\u305f\u3081\u3001\u5206\u304b\u308a\u3084\u3059\u3044\u3067\u3059\u3002<strong>\u3057\u304b\u3057\u3001\u3069\u3061\u3089\u3067\u3082\u3001\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u3068\u304d\u306b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u7d42\u4e86\u3059\u308b\u3053\u3068\u307e\u305f\u306f\u8b66\u544a\u3092\u51fa\u3059\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093<\/strong>\u3002<\/p>\n<p>\u306a\u304a\u3001PHP 7.3\u5411\u3051\u306e\u63d0\u6848\u306f\u4ee5\u4e0b\u901a\u308a\u3067\u3059:<\/p>\n<blockquote><p>\u3053\u306eRFC\u3067\u306f\u3001\u4ee3\u308f\u308a\u306b<code>json_decode()<\/code>\u3068<code>json_encode()<\/code>\u306b<code>JSON_THROW_ON_ERROR<\/code>\u3068\u3044\u3046\u306b\u65b0\u3057\u3044\u30aa\u30d7\u30b7\u30e7\u30f3\u30d5\u30e9\u30b0\u5024\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3092\u63d0\u6848\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30d5\u30e9\u30b0\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u3053\u308c\u3089\u306e\u95a2\u6570\u306e\u30a8\u30e9\u30fc\u52d5\u4f5c\u304c\u5909\u66f4\u3055\u308c\u307e\u3059\u3002\u30b0\u30ed\u30fc\u30d0\u30eb\u30a8\u30e9\u30fc\u72b6\u614b\u306f\u5909\u66f4\u3055\u308c\u307e\u305b\u3093\u304c\u3001\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u3001<code>json_last_error()<\/code>\u3068<code>json_last_error_msg()<\/code>\u306e\u8a2d\u5b9a\u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u30b3\u30fc\u30c9\u3068\u4f9b\u306b<code>JsonException<\/code>\u304c\u51fa\u307e\u3059\u3002<\/p><\/blockquote>\n<p>JSON\u30a8\u30e9\u30fc\u306e\u7c21\u5358\u306a\u4f8b\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n<pre><code class=\"language-php\">try {\n    json_decode(\"{\", false, 512, JSON_THROW_ON_ERROR);\n}\ncatch (\\JsonException $exception) {\n    echo $exception-&gt;getMessage(); \/\/ echoes \"Syntax error\"\n}<\/code><\/pre>\n<p>\u30a8\u30e9\u30fc\u304c\u51fa\u3055\u308c\u308b\u3053\u3068\u306b\u306f\u30e1\u30ea\u30c3\u30c8\u304c\u591a\u3044\u3067\u3059\u3002\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/wiki.php.net\/rfc\/json_throw_on_error\" target=\"_blank\" rel=\"noopener noreferrer\">RFC<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u6ce8\uff1a<code>json_decode()<\/code>\u306e\u7121\u52b9\u306a\u6df1\u5ea6\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u8b66\u544a\u3092\u6d88\u3057\u3001<code>NULL<\/code>\u3092\u8fd4\u3057\u307e\u3059\u3002\u3053\u306e\u6a5f\u80fd\u306f<code>JSON_THROW_ON_ERROR<\/code>\u306e\u5f71\u97ff\u3092\u53d7\u3051\u307e\u305b\u3093\u3002\u540c\u69d8\u306b\u3001\u30d1\u30e9\u30e1\u30fc\u30bf\u89e3\u6790\u30a8\u30e9\u30fc\u306f<code>JSON_THROW_ON_ERROR<\/code>\u306e\u5f71\u97ff\u3092\u53d7\u3051\u305a\u3001\u5f15\u304d\u7d9a\u304d\u8b66\u544a\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u63d0\u6848\u306f23\u5bfe0\u7968\u3092\u5f97\u3066\u901a\u904e\u3057\u307e\u3057\u305f\u3002<\/p>\n<h4>PHP 7.3 RFC<\/h4>\n<ul>\n<li><a href=\"https:\/\/wiki.php.net\/rfc\/json_throw_on_error\" target=\"_blank\" rel=\"noopener noreferrer\">JSON_THROW_ON_ERROR<\/a><\/li>\n<\/ul>\n<h4>\u53c2\u7167\u6587\u732e\uff1a<\/h4>\n<ul>\n<li><a href=\"http:\/\/php.net\/manual\/en\/book.json.php\" target=\"_blank\" rel=\"noopener noreferrer\">JavaScript\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u8868\u8a18\u6cd5<\/a><\/li>\n<li><a href=\"http:\/\/php.net\/manual\/en\/function.json-decode.php\" target=\"_blank\" rel=\"noopener noreferrer\">json_decode()<\/a><\/li>\n<li><a href=\"http:\/\/php.net\/manual\/en\/function.json_encode\" target=\"_blank\" rel=\"noopener noreferrer\">json_encode()<\/a><\/li>\n<li><a href=\"http:\/\/php.net\/manual\/en\/function.json-last-error.php\" target=\"_blank\" rel=\"noopener noreferrer\">json_last_error()<\/a><\/li>\n<li><a href=\"http:\/\/php.net\/manual\/en\/function.json-last-error-msg.php\" target=\"_blank\" rel=\"noopener noreferrer\">json_last_error_msg()<\/a><\/li>\n<li><a href=\"http:\/\/php.net\/manual\/en\/language.exceptions.php\" target=\"_blank\" rel=\"noopener noreferrer\">PHP\u8a00\u8a9e\u306e\u4f8b\u5916<\/a><\/li>\n<\/ul>\n<h2 id=\"list\">list() \u3067\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u6e21\u3057\u304c\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308b<\/h2>\n<h3>\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u6e21\u3057\u3068\u306f\uff1f<\/h3>\n<p>\u4f8b\u3048\u3070\u4e0b\u8a18\u306e\u884c\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n<pre><code class=\"language-php\">$b = &$a;<\/code><\/pre>\n<p>\u3053\u3053\u3067<code>$b<\/code>\u306f<code>$a<\/code>\u306e\u5024\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u5024\u306f<code>$a<\/code>\u304b\u3089<code>$b<\/code>\u306b\u30b3\u30d4\u30fc\u3055\u308c\u307e\u305b\u3093\u3002PHP\u3067\u306f\u3001\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3092\u4f7f\u7528\u3057\u3066\u5024\u3092\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3064\u307e\u308a\u30012\u3064\u306e\u5909\u6570\u304c\u540c\u3058\u30c7\u30fc\u30bf\u3092\u6307\u3057\u3001\u5909\u6570\u304c\u5909\u308f\u308b\u3068\u5143\u306e\u30c7\u30fc\u30bf\u3082\u5f71\u97ff\u3092\u53d7\u3051\u307e\u3059\u3002\u4ee5\u4e0b\u306f<a href=\"http:\/\/php.net\/manual\/en\/language.operators.assignment.php#language.operators.assignment.reference\" target=\"_blank\" rel=\"noopener noreferrer\">PHP\u30de\u30cb\u30e5\u30a2\u30eb\u306e\u4f8b<\/a>\u3067\u3059\uff1a<\/p>\n<pre><code class=\"language-php\">&lt;?php\n$a = 3;\n$b = &$a; \/\/ $b is a reference to $a\n\nprint \"$a\\n\"; \/\/ prints 3\nprint \"$b\\n\"; \/\/ prints 3<\/code><\/pre>\n<p><code>$a<\/code>\u306e\u5024\u3092\u5909\u66f4\u3057\u307e\u3057\u3087\u3046\uff1a<\/p>\n<pre><code class=\"language-php\">$a = 4; \/\/ change $a\n\nprint \"$a\\n\"; \/\/ prints 4\nprint \"$b\\n\"; \/\/ prints 4 as well, since $b is a reference to $a, which has been changed<\/code><\/pre>\n<h3>list()\u3068\u306f\uff1fPHP 7.3\u3067\u306e\u5909\u66f4\u70b9\u306f\uff1f<\/h3>\n<p><a href=\"http:\/\/www.php.net\/list\" target=\"_blank\" rel=\"noopener noreferrer\">list()<\/a> \u8a00\u8a9e\u69cb\u9020\u306f\u3001\u4e00\u9023\u306e\u5909\u6570\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u305f\u3081\u306b\u4f7f\u308f\u308c\u307e\u3059\u304c\u3001<code>list()<\/code>\u3092\u4f7f\u3063\u3066\u5909\u6570\u306b\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u306e\u5024\u3092\u4ee3\u5165\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>PHP 7.3\u3067\u306f\u3053\u308c\u304c\u6539\u5584\u3055\u308c\u3001\u6b21\u306e\u4f8b\u306b\u793a\u3059\u3088\u3046\u306b\u3001<code>list()<\/code>\u69cb\u9020\u3092\u4f7f\u7528\u3057\u3066\u3067\u3082\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u306e\u5909\u6570\u3092\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">$array = [1, 2];\nlist($a, &$b) = $array;<\/code><\/pre>\n<p>\u4e0b\u8a18\u3068\u540c\u3058\u3067\u3059\uff1a<\/p>\n<pre><code class=\"language-php\">$array = [1, 2];\n$a = $array[0];\n$b =& $array[1];<\/code><\/pre>\n<p>\u3053\u306e\u63d0\u6848\u306e\u30e1\u30ea\u30c3\u30c8\u306f\u3001\u73fe\u5728\u306f\u8a31\u53ef\u3055\u308c\u3066\u3044\u306a\u3044\u8907\u6570\u306e\u5909\u6570\u3092\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3067\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3053\u3068\u3067\u3059\u3002\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/wiki.php.net\/rfc\/list_reference_assignment\" target=\"_blank\" rel=\"noopener noreferrer\">RFC<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u63d0\u6848\u306f\u300117\u5bfe7\u7968\u3092\u5f97\u3066\u901a\u904e\u3057\u307e\u3057\u305f\u3002<\/p>\n<h4>PHP 7.3 RFC<\/h4>\n<ul>\n<li><a href=\"https:\/\/wiki.php.net\/rfc\/list_reference_assignment\" target=\"_blank\" rel=\"noopener noreferrer\">list() Reference Assignment<\/a><\/li>\n<\/ul>\n<h4>\u53c2\u7167\u6587\u732e<\/h4>\n<ul>\n<li>PHP\u30de\u30cb\u30e5\u30a2\u30eb &#8211; <a href=\"http:\/\/php.net\/manual\/en\/function.list.php\" target=\"_blank\" rel=\"noopener noreferrer\">list()<\/a><\/li>\n<li>PHP\u30de\u30cb\u30e5\u30a2\u30eb &#8211; <a href=\"http:\/\/php.net\/manual\/en\/language.references.php\" target=\"_blank\" rel=\"noopener noreferrer\">\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u306b\u3064\u3044\u3066<\/a><\/li>\n<li>\u4ee3\u5165\u6f14\u7b97\u5b50 &#8211; <a href=\"http:\/\/php.net\/manual\/en\/language.operators.assignment.php#language.operators.assignment.reference\" target=\"_blank\" rel=\"noopener noreferrer\">\u53c2\u7167\u306b\u3088\u308b\u4ee3\u5165<\/a><\/li>\n<\/ul>\n<h2 id=\"is-countable\">is_countable\u95a2\u6570<\/h2>\n<p>PHP 7.3\u306e\u3082\u3046\u4e00\u3064\u306e\u4fbf\u5229\u306a\u6a5f\u80fd\u306f\u3001<code>is_countable()<\/code>\u95a2\u6570\u3067\u3059\u3002<a href=\"https:\/\/kinsta.com\/jp\/blog\/php-7-2\/\" target=\"_blank\" rel=\"noopener noreferrer\">PHP 7.2<\/a>\u307e\u3067\u3001\u30ab\u30a6\u30f3\u30c8\u3067\u304d\u306a\u3044\u3082\u306e\u3092<a href=\"http:\/\/php.net\/manual\/en\/function.count.php\" target=\"_blank\" rel=\"noopener noreferrer\">count()<\/a> \u3057\u3088\u3046\u3068\u3059\u308b\u3068\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u8b66\u544a\u3092\u56de\u907f\u3059\u308b\u306b\u306f\u3001\u6b21\u306e\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u307e\u3059\uff1a<\/p>\n<pre><code class=\"language-php\">if (is_array($foo) || $foo instanceof Countable) {\n    \/\/ $foo is countable\n}<\/code><\/pre>\n<p>\u4eca\u56de\u306eRFC\u306f\u3001\u5909\u6570\u304c\u914d\u5217\u3067\u3042\u308b\u307e\u305f\u306f\u30ab\u30a6\u30f3\u30c8\u3067\u304d\u308b\u5834\u5408\u306f<code>true<\/code>\u3092\u8fd4\u3057\u3001\u305d\u3046\u3067\u306a\u3051\u308c\u3070<code>false<\/code>\u3092\u8fd4\u3059<a href=\"https:\/\/wiki.php.net\/rfc\/is-countable\" target=\"_blank\" rel=\"noopener noreferrer\">is_countable()<\/a>\u95a2\u6570\u3092\u63d0\u6848\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3092\u6b21\u306e\u3088\u3046\u306b\u5909\u66f4\u3067\u304d\u307e\u3059\uff1a<\/p>\n<pre><code class=\"language-php\">if (is_countable($foo)) {\n    \/\/ $foo is countable\n}<\/code><\/pre>\n<p>\u3053\u306e\u63d0\u6848\u306f\u300125\u5bfe0\u7968\u3092\u5f97\u3066\u901a\u904e\u3057\u307e\u3057\u305f\u3002<\/p>\n<h4>PHP 7.3 RFC<\/h4>\n<ul>\n<li><a href=\"https:\/\/wiki.php.net\/rfc\/is-countable\" target=\"_blank\" rel=\"noopener noreferrer\">is_countable<\/a><\/li>\n<\/ul>\n<h4>\u53c2\u7167\u6587\u732e<\/h4>\n<ul>\n<li><a href=\"http:\/\/php.net\/manual\/en\/class.countable.php\" target=\"_blank\" rel=\"noopener noreferrer\">Countable \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9<\/a><\/li>\n<li><a href=\"http:\/\/php.net\/manual\/en\/function.count.php\" target=\"_blank\" rel=\"noopener noreferrer\">count<\/a><\/li>\n<\/ul>\n<h2 id=\"array-key-first-last\">array_key_first()\u3001array_key_last()<\/h2>\n<p>\u73fe\u5728\u3001<a href=\"http:\/\/php.net\/manual\/en\/function.reset.php\" target=\"_blank\" rel=\"noopener noreferrer\">reset()<\/a>\u3001<a href=\"http:\/\/php.net\/manual\/en\/function.end.php\" target=\"_blank\" rel=\"noopener noreferrer\">end()<\/a> \u53ca\u3073<a href=\"http:\/\/php.net\/manual\/en\/function.key.php\" target=\"_blank\" rel=\"noopener noreferrer\">key()<\/a>\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u914d\u5217\u306e\u6700\u521d\u3068\u6700\u5f8c\u306e\u30ad\u30fc\u3092\u53d6\u308a\u51fa\u305b\u307e\u3059\u3002\u6b8b\u5ff5\u306a\u304c\u3089\u3001\u3053\u308c\u3089\u306e\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u5185\u90e8\u72b6\u614b\u3092\u5909\u66f4\u305b\u305a\u306b\u914d\u5217\u306e\u6700\u521d\u307e\u305f\u306f\u6700\u5f8c\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u53ce\u96c6\u3059\u308b\u65b9\u6cd5\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4ed6\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u306f\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u4f4e\u4e0b\u3055\u305b\u307e\u3059\u3002<br \/>\n\u4eca\u56de\u306e\u63d0\u6848\u306f\u3001PHP\u30b3\u30a2\u306b2\u3064\u306e\u65b0\u3057\u3044\u95a2\u6570\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u4e0a\u8a18\u3092\u6539\u5584\u3057\u307e\u3059\uff1a<\/p>\n<ul>\n<li><code>array_key_first()<\/code><\/li>\n<li><code>array_key_last()<\/code><\/li>\n<\/ul>\n<p>PHP 7.3\u4ee5\u964d\u306f\u3001<code>array_key_first()<\/code>\u3068<code>array_key_last()<\/code>\u3067\u3001<strong>\u914d\u5217\u306e\u5185\u90e8\u30dd\u30a4\u30f3\u30bf\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u305a\u306b<\/strong>\u3001\u8a72\u5f53\u306e\u914d\u5217\u306e\u6700\u521d\u3068\u6700\u5f8c\u306e\u30ad\u30fc\u3092\u53d6\u308a\u51fa\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u65b0\u3057\u3044\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u3042\u307e\u308a\u8907\u96d1\u3067\u306a\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u30a8\u30e9\u30fc\u3092\u907f\u3051\u308b\u3053\u3068\u3055\u3048\u3067\u304d\u307e\u3059\u3002\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/wiki.php.net\/rfc\/array_key_first_last\" target=\"_blank\" rel=\"noopener noreferrer\">RFC<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><code>array_key_first()<\/code> \u3068\u00a0<code>array_key_last()<\/code>\u306f18\u5bfe14\u7968\u3092\u5f97\u3066\u627f\u8a8d\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>\u6ce8\uff1a\u5143\u306eRFC\u3067\u306f\u3001<code>array_value_first()<\/code> \u3068\u00a0<code>array_value_last()<\/code>\u3068\u3044\u30462\u3064\u306e\u8ffd\u52a0\u306e\u95a2\u6570\u3082\u63d0\u6848\u3055\u308c\u307e\u3057\u305f\u304c\u3001\u5225\u5f53\u306e\u6295\u7968\u3067\u6295\u7968\u3055\u308c\u627f\u8a8d\u3055\u308c\u3066\u304a\u3089\u305a\u3001PHP\u30b3\u30a2\u306b\u542b\u307e\u308c\u307e\u305b\u3093\u3002<\/p>\n<h4>PHP 7.3 RFC<\/h4>\n<ul>\n<li><a href=\"https:\/\/wiki.php.net\/rfc\/array_key_first_last\" target=\"_blank\" rel=\"noopener noreferrer\">array_key_first()\u3001array_key_last()<\/a><\/li>\n<\/ul>\n<h4>\u53c2\u7167\u6587\u732e\uff1a<\/h4>\n<ul>\n<li><a href=\"http:\/\/php.net\/manual\/en\/function.array-key-first.php\" target=\"_blank\" rel=\"noopener noreferrer\">array_key_first<\/a><\/li>\n<li><a href=\"http:\/\/php.net\/manual\/en\/function.array-key-last.php\" target=\"_blank\" rel=\"noopener noreferrer\">array_key_last<\/a><\/li>\n<\/ul>\n<h2 id=\"argon2\">Argon2\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\u306e\u5f37\u5316<\/h2>\n<p>Argon2\u306fBcrypt\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u4ee3\u66ff\u54c1\u3068\u3057\u3066<a href=\"https:\/\/kinsta.com\/jp\/blog\/php-7-2\/\" target=\"_blank\" rel=\"noopener noreferrer\">PHP 7.2\u3067\u5c0e\u5165\u3055\u308c\u305f<\/a>\u30cf\u30c3\u30b7\u30f3\u30b0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3059\u3002PHP 7.2\u3067\u306f\u3001<code>password_*<\/code>\u95a2\u6570\u3067\u4f7f\u7528\u3067\u304d\u308b<code>PASSWORD_ARGON2I<\/code>\u5b9a\u6570\u304c\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\uff1a<\/p>\n<pre><code class=\"language-php\">password_hash('password', PASSWORD_ARGON2I);<\/code><\/pre>\n<p>\u6700\u521d\u306e\u5c0e\u5165\u4ee5\u6765\u3001Argon2\u306e\u65b0\u3057\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3044\u308b\u70ba\u3001\u672c\u7a3f\u57f7\u7b46\u306e\u6642\u70b9\u3067\u306f\u3001Argon2\u306b\u306f3\u3064\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>Argon2d<\/strong>\u306fGPU\u30af\u30e9\u30c3\u30ad\u30f3\u30b0\u653b\u6483\u306b\u5bfe\u3059\u308b\u62b5\u6297\u529b\u3092\u6700\u5927\u9650\u306b\u5f15\u304d\u51fa\u3057\u307e\u3059\u3002\u9ad8\u901f\u3067\u3042\u308a\u3001\u30c7\u30fc\u30bf\u4f9d\u5b58\u306e\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/li>\n<li><strong>Argon2i<\/strong>\u306f\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\u306b\u9069\u5207\u306a\u65b9\u6cd5\u3067\u3042\u308b\u30c7\u30fc\u30bf\u306b\u4f9d\u5b58\u3057\u306a\u3044\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u653b\u6483\u3092\u4e88\u9632\u3059\u308b\u306b\u306f\u30e1\u30e2\u30ea\u4e0a\u306e\u30d1\u30b9\u304c\u591a\u304f\u3001\u4e0a\u8a18\u3088\u308a\u9045\u3044\u3067\u3059\u3002<\/li>\n<li><strong>Argon2id<\/strong>\u306f\u3001\u30e1\u30e2\u30ea\u4e0a\u306e\u6700\u521d\u306e\u30d1\u30b9\u306e\u305f\u3081\u306bArgon2i\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3001\u305d\u306e\u5f8c\u306e\u30d1\u30b9\u306e\u305f\u3081\u306bArgon2d\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u4f7f\u7528\u3059\u308b\u3001\u7d44\u307f\u5408\u308f\u305b\u306e\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u3059\u3002<\/li>\n<\/ul>\n<p>\u7279\u5b9a\u306e\u7406\u7531\u304c\u3042\u308a\u3001\u305d\u308c\u4ee5\u5916\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u5fc5\u8981\u3067\u3042\u308b\u5834\u5408\u3092\u9664\u304d\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u306fArgon2id\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u65b0\u3057\u3044RFC\u3067\u306f\u3001\u65b0\u3057\u3044<code>PASSWORD_ARGON2ID<\/code>\u5b9a\u6570\u3092\u4f7f\u7528\u3057\u3066<a href=\"http:\/\/php.net\/manual\/en\/ref.password.php\" target=\"_blank\" rel=\"noopener noreferrer\">password_*<\/a> \u95a2\u6570\u5185\u3067Argon2id\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u63d0\u6848\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">password_hash('password', PASSWORD_ARGON2ID);<\/code><\/pre>\n<p>\u5b9f\u88c5\u306fArgon2i\u306e\u5b9f\u88c5\u3068\u540c\u3058\u3067\u3001\u540c\u3058\u30b3\u30b9\u30c8\u8981\u56e0\u3092\u53d7\u3051\u5165\u308c\u307e\u3059\uff1a<\/p>\n<ul>\n<li>\u30cf\u30c3\u30b7\u30e5\u4e2d\u306b\u6d88\u8cbb\u3055\u308c\u308bKiB\u306e\u6570\u3092\u5b9a\u7fa9\u3059\u308b<strong>\u30e1\u30e2\u30ea\u30b3\u30b9\u30c8<\/strong>\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306f1&lt;&lt;10\u3001\u307e\u305f\u306f1024 KiB\u3001\u307e\u305f\u306f1 MiB\u3067\u3059\uff09<\/li>\n<li>\u30cf\u30c3\u30b7\u30e5\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u53cd\u5fa9\u56de\u6570\u3092\u6307\u5b9a\u3059\u308b<strong>\u6642\u9593\u30b3\u30b9\u30c8<\/strong>\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u306f2\u56de\uff09<\/li>\n<li>\u30cf\u30c3\u30b7\u30e5\u51e6\u7406\u4e2d\u306b\u4f7f\u7528\u3055\u308c\u308b\u4e26\u5217\u30b9\u30ec\u30c3\u30c9\u306e\u6570\u3092\u6307\u5b9a\u3059\u308b<strong>\u4e26\u5217\u5ea6<\/strong>\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u306f2\u4ef6\uff09<\/li>\n<\/ul>\n<p>\u6b21\u306e\u30b3\u30fc\u30c9\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre><code class=\"language-php\">$options = ['memory_cost' =&gt; 1&lt;&lt;11, 'time_cost' =&gt; 4, 'threads' =&gt; 2];\npassword_hash('password', PASSWORD_ARGON2ID, $options);<\/code><\/pre>\n<p>\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/wiki.php.net\/rfc\/argon2_password_hash_enhancements\" target=\"_blank\" rel=\"noopener noreferrer\">RFC<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n<h4>PHP 7.3 RFC<\/h4>\n<ul>\n<li><a href=\"https:\/\/wiki.php.net\/rfc\/argon2_password_hash_enhancements\" target=\"_blank\" rel=\"noopener noreferrer\">Argon2\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\u306e\u5f37\u5316<\/a><\/li>\n<\/ul>\n<h4>\u53c2\u7167\u6587\u732e\uff1a<\/h4>\n<ul>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Argon2\" target=\"_blank\" rel=\"noopener noreferrer\">Argon2<\/a> (Wikipedia)<\/li>\n<li><a href=\"https:\/\/www.cryptolux.org\/images\/0\/0d\/Argon2.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">Argon2: \u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30f3\u30b0\u306a\u3069\u306b\u4fbf\u5229\u306a\u30e1\u30e2\u30ea\u30cf\u30fc\u30c9\u6a5f\u80fd<\/a> (PDF)<\/li>\n<\/ul>\n<h2 id=\"deprecations\">\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308b\u3082\u306e<\/h2>\n<p>\u4ee5\u4e0b\u306fPHP 7.3\u3067\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308a\u3001PHP 8.0\u3067\u524a\u9664\u3055\u308c\u308b\u4e88\u5b9a\u3068\u306e\u6a5f\u80fd\u30fb\u95a2\u6570\u306e\u30ea\u30b9\u30c8\u3067\u3059\u3002<\/p>\n<h3>Deprecate and Remove image2wbmp()<\/h3>\n<p><strong>image2wbmp()<\/strong>\u95a2\u6570\u306f\u3001\u8a72\u5f53\u753b\u50cf\u306e<a href=\"https:\/\/en.wikipedia.org\/wiki\/Wireless_Application_Protocol_Bitmap_Format\" target=\"_blank\" rel=\"noopener noreferrer\">WBMP<\/a>\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u51fa\u529b\u307e\u305f\u306f\u4fdd\u5b58\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u3053\u306e\u95a2\u6570\u306b\u306f\u3001\u30a4\u30e1\u30fc\u30b8\u30ea\u30bd\u30fc\u30b9\u3001\u30d5\u30a1\u30a4\u30eb\u540d\uff08\u4fdd\u5b58\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u30d1\u30b9\uff09\u3001\u304a\u3088\u3073\u30d5\u30a9\u30a2\u30b0\u30e9\u30a6\u30f3\u30c9\u30ab\u30e9\u30fc\u306e3\u3064\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u3042\u308a\u307e\u3059\u3002PHP 5.0\u4ee5\u964d\u3001 <a href=\"http:\/\/php.net\/manual\/en\/function.imagewbmp.php\" target=\"_blank\" rel=\"noopener noreferrer\">imagewbmp()<\/a>\u3068\u540c\u3058\u6a5f\u80fd\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u4eca\u56de\u306e<a href=\"https:\/\/wiki.php.net\/rfc\/image2wbmp\" target=\"_blank\" rel=\"noopener noreferrer\">RFC<\/a>\u3067\u306f\u975e\u63a8\u5968\u304b\u3064\u524a\u9664\u304c\u63d0\u6848\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br \/>\nPHP 7.3\u4ee5\u964d\u3001<code>image2wbmp()<\/code>\u3092\u547c\u3073\u51fa\u3059\u3068\u3001\u975e\u63a8\u5968\u8b66\u544a\u304c\u767a\u884c\u3055\u308c\u307e\u3059\u3002\u524a\u9664\u5f8c\u306b\u306a\u308b\u3068\u3001\u547c\u3073\u51fa\u3057\u3067\u81f4\u547d\u7684\u306a\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<h4>PHP 7.3 RFC<\/h4>\n<ul>\n<li><a href=\"https:\/\/wiki.php.net\/rfc\/image2wbmp\" target=\"_blank\" rel=\"noopener noreferrer\">image2wbmp()\u304c\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308a\u3001\u524a\u9664\u3055\u308c\u307e\u3059<\/a><\/li>\n<\/ul>\n<h3>\u30b1\u30fc\u30b9\u30fb\u30a4\u30f3\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\u5b9a\u6570\u304c\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308a\u3001\u524a\u9664\u3055\u308c\u308b<\/h3>\n<p>PHP\u3067\u306f\u73fe\u5728\u3001\u30b1\u30fc\u30b9\u30fb\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\uff08\u5927\u6587\u5b57\u3068\u5c0f\u6587\u5b57\u3092\u533a\u5225\u3057\u305f\uff09\u5b9a\u6570\u3082\u30b1\u30fc\u30b9\u30fb\u30a4\u30f3\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\uff08\u5927\u6587\u5b57\u3068\u5c0f\u6587\u5b57\u3092\u533a\u5225\u3057\u3066\u3044\u306a\u3044\uff09\u5b9a\u6570\u3082\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3001<strong>\u30b1\u30fc\u30b9\u30fb\u30a4\u30f3\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6<\/strong>\u5b9a\u6570\u306f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u3066\u3082\u3001\u6a5f\u80fd\u7570\u5e38\u306e\u539f\u56e0\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u3001\u4f7f\u7528\u3057\u306b\u304f\u3044\u3082\u306e\u3067\u3059\u3002<br \/>\n\u4eca\u56de\u306e\u63d0\u6848\u306f\u3001\u4ee5\u4e0b\u306e\u524d\u63d0\u3067\u63d0\u6848\u3055\u308c\u307e\u3059\uff1a<\/p>\n<ul>\n<li><a href=\"http:\/\/php.net\/manual\/en\/language.oop5.constants.php\" target=\"_blank\" rel=\"noopener noreferrer\">\u30af\u30e9\u30b9\u5b9a\u6570<\/a>\u306f\u3001\u5fc5\u305a\u30b1\u30fc\u30b9\u30fb\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044<\/li>\n<li><code>const<\/code>\u3067\u5ba3\u8a00\u3055\u308c\u305f\u30b0\u30ed\u30fc\u30d0\u30eb\u5b9a\u6570\u306f\u3001\u5fc5\u305a\u30b1\u30fc\u30b9\u30fb\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044<\/li>\n<li><code>define()<\/code>\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u5b9a\u6570\u306f\u3001\u539f\u5247\u30b1\u30fc\u30b9\u30fb\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044<\/li>\n<\/ul>\n<p>\u307e\u305f\u306f\u3001\u300c<a href=\"http:\/\/php.net\/manual\/en\/language.constants.php\" target=\"_blank\" rel=\"noopener noreferrer\">PHP\u8a00\u8a9e\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/a>\u300d\u3067\u306f\u4e0b\u8a18\u304c\u660e\u78ba\u306b\u3055\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n<blockquote><p>\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u5b9a\u6570\u3067\u306f\u5927\u6587\u5b57\u5c0f\u6587\u5b57\u3092\u533a\u5225\u3057\u307e\u3059\u3002\u6163\u7fd2\u7684\u306b\u3001 \u5b9a\u6570\u306f\u5e38\u306b\u5927\u6587\u5b57\u3067\u8868\u8a18\u3055\u308c\u307e\u3059\u3002<\/p><\/blockquote>\n<p>\u305d\u3053\u3067\u3001\u4eca\u56de\u306eRFC\u306f\u6b21\u306e\u5909\u66f4\u70b9\u3092\u63d0\u6848\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n<ul>\n<li>3\u756a\u76ee\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092<code>true<\/code>\u306b\u8a2d\u5b9a\u3057\u3066<code>define()<\/code>\u3092\u547c\u3073\u51fa\u3059\u3053\u3068\u304c\u63a8\u9032\u3055\u308c\u306a\u304f\u306a\u308b &#8211; PHP 7.3<\/li>\n<li>\u5ba3\u8a00\u3068\u306f\u7570\u306a\u308b\u30b1\u30fc\u30b7\u30f3\u30b0\u3092\u4f7f\u7528\u3059\u308b\u30b1\u30fc\u30b9\u30fb\u30a4\u30f3\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\u5b9a\u6570\u304c\u63a8\u9032\u3055\u308c\u306a\u304f\u306a\u308b\uff08<code>true<\/code>\u3001<code>false<\/code>\u307e\u305f\u306f<code>null<\/code>\u3092\u9664\u304d\uff09 &#8211; PHP 7.3<\/li>\n<li>\u30b1\u30fc\u30b9\u30fb\u30a4\u30f3\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\u5b9a\u6570\u306e\u5ba3\u8a00\u3092\u524a\u9664\u3059\u308b &#8211; PHP 8.0<\/li>\n<li>\u7279\u5225\u306a\u30b1\u30fc\u30b9\u306e\u5b9a\u6570\u3067\u3042\u308b<code>true<\/code>\u3001<code>false<\/code>\u307e\u305f\u306f<code>null<\/code>\u3092\u5c02\u7528\u30ad\u30fc\u30ef\u30fc\u30c9\u306b\u5909\u63db\u3059\u308b &#8211; PHP 8.0<\/li>\n<\/ul>\n<h4>PHP 7.3 RFC<\/h4>\n<p><a href=\"https:\/\/wiki.php.net\/rfc\/case_insensitive_constant_deprecation\" target=\"_blank\" rel=\"noopener noreferrer\">\u30b1\u30fc\u30b9\u30fb\u30a4\u30f3\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\u5b9a\u6570\u304c\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308a\u3001\u524a\u9664\u3055\u308c\u308b<\/a>.<\/p>\n<h3>\u305d\u306e\u4ed6\u306ePHP 7.3\u3067\u63a8\u9032\u3055\u308c\u306a\u304f\u306a\u308b\u3082\u306e<\/h3>\n<p>\u4ee5\u4e0b\u306f\u3001PHP 7.3\u3067\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308b\u6a5f\u80fd\u306e\u7c21\u5358\u306a\u4e00\u89a7\u3067\u3059\u3002\u306a\u304a\u3001\u500b\u4eba\u7684\u306b\u306f\u91cd\u8981\u3060\u3068\u5224\u65ad\u3057\u305f\u3082\u306e\u3057\u304b\u8ff0\u3079\u307e\u305b\u3093\u306e\u3067\u3001\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002\u5b8c\u5168\u306a\u30ea\u30b9\u30c8\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/wiki.php.net\/rfc\/deprecations_php_7_3\" target=\"_blank\" rel=\"noopener noreferrer\">PHP 7.3\u3067\u63a8\u5968\u3055\u308c\u306a\u304f\u306a\u308b\u6a5f\u80fd<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><strong>\u8a18\u9332\u3055\u308c\u3066\u3044\u306a\u3044\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u5217\uff08mbstring\uff09\u95a2\u6570\u306e\u30a8\u30a4\u30ea\u30a2\u30b9\uff1a<\/strong><code>mb_<\/code>\u3068\u3044\u3046\u63a5\u982d\u8f9e\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u540c\u7b49\u306e\u95a2\u6570\u306e\u91cd\u8907\u3067\u3042\u308b\u3001\u8a18\u9332\u3055\u308c\u3066\u3044\u306a\u3044\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u5217\u95a2\u6570\u306e\u30a8\u30a4\u30ea\u30a2\u30b9\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001<code>mbereg<\/code>\u306f<code>mb_ereg<\/code>\u306e\u30a8\u30a4\u30ea\u30a2\u30b9\u3067\u3059\u3002<br \/>\n\u3053\u308c\u3089\u306e\u95a2\u6570\u306f\u3059\u3079\u3066\u63a8\u9032\u3055\u308c\u306a\u304f\u306a\u308a\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u4e2d\u306b\u691c\u51fa\u3055\u308c\u308b\u3068\u975e\u63a8\u5968\u901a\u77e5\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u6574\u6570needle\u4ed8\u304d\u6587\u5b57\u5217\u306e\u691c\u7d22\u95a2\u6570\uff1a<\/strong>\u3053\u308c\u3089\u306e\u95a2\u6570\u306f\u3001\u6587\u5b57\u5217\u306eneedle\u3067\u6a5f\u80fd\u3057\u307e\u3059\u3002needle\u304c\u6587\u5b57\u5217\u3067\u306a\u3044\u5834\u5408\u306f\u3001 \u305d\u308c\u3092\u6574\u6570\u306b\u5909\u63db\u3057\u3001\u305d\u306e\u756a\u53f7\u306b\u5bfe\u5fdc\u3059\u308b\u6587\u5b57\u3068\u3057\u3066\u6271\u3044\u307e\u3059\u3002\uff08\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"http:\/\/php.net\/manual\/en\/function.strpos.php\" target=\"_blank\" rel=\"noopener noreferrer\">PHP\u30de\u30cb\u30e5\u30a2\u30eb<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002\uff09 <a href=\"https:\/\/wiki.php.net\/rfc\/deprecations_php_7_3#string_search_functions_with_integer_needle\" target=\"_blank\" rel=\"noopener noreferrer\">\u4ee5\u4e0b\u306fRFC\u306e\u4f8b\u3067\u3059<\/a>\uff1a<\/p>\n<pre><code class=\"language-php\">$str = \"There are 10 apples\";\nvar_dump(strpos($str, \"10\")); \/\/ int(10)\nvar_dump(strpos($str, 10));   \/\/ bool(false)<\/code><\/pre>\n<p>\u4e0a\u8a18\u306f\u96e3\u3057\u304f\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u30c7\u30fc\u30bf\u306b\u3088\u308a\u578b\u304c\u5909\u66f4\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u4e88\u671f\u3057\u306a\u3044\u7570\u5e38\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u4eca\u56de\u306eRFC\u306f\u3001\u6b21\u306e\u95a2\u6570\u306b\u95a2\u3057\u3066needle\u304c\u6587\u5b57\u5217\u3067\u306a\u3044\u5834\u5408\u3001\u975e\u63a8\u5968\u8b66\u544a\u3092\u63d0\u6848\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n<ul>\n<li><code>strpos<\/code><\/li>\n<li><code>strrpos<\/code><\/li>\n<li><code>stripos<\/code><\/li>\n<li><code>strripos<\/code><\/li>\n<li><code>strstr<\/code><\/li>\n<li><code>strchr<\/code><\/li>\n<li><code>strrchr<\/code><\/li>\n<li><code>stristr<\/code><\/li>\n<\/ul>\n<p>PHP 8.0\u3067\u306f\u3001\u975e\u63a8\u9032\u8b66\u544a\u3092\u524a\u9664\u3057\u3001needle\u3092\u81ea\u52d5\u7684\u306b\u6587\u5b57\u5217\u306b\u5909\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><strong><code>fgetss()<\/code>\u95a2\u6570\u3068<code>string.strip_tags<\/code>\u30b9\u30c8\u30ea\u30fc\u30e0\u30d5\u30a3\u30eb\u30bf\uff1a<\/strong><code>fgetss()<\/code> \u3068<code>string.strip_tags<\/code>\u306f\u3001\u8aad\u307f\u8fbc\u307f\u6642\u306b\u6587\u5b57\u5217\u304b\u3089\u30bf\u30b0\u3092\u53d6\u308a\u9664\u304d\u307e\u3059\u3002\u95a2\u6570\u3082\u30d5\u30a3\u30eb\u30bf\u3082\u306e\u4e21\u65b9\u3067<a href=\"http:\/\/php.net\/manual\/en\/function.strip-tags.php\">strip_tags()<\/a>\u95a2\u6570\u3092\u516c\u958b\u3057\u307e\u3059\u3002\u30de\u30b7\u30f3\u304c\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u72b6\u614b\u3067\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u70ba\u3001<code>strip_tags()<\/code>\u306e\u5b9f\u88c5\u304c\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001RFC\u3067\u306f<a href=\"https:\/\/wiki.php.net\/rfc\/deprecations_php_7_3#fgetss_function_and_stringstrip_tags_filter\" target=\"_blank\" rel=\"noopener noreferrer\">\u3082\u3046\u4e00\u3064\u306e\u30c7\u30e1\u30ea\u30c3\u30c8<\/a>\u304c\u660e\u78ba\u306b\u3055\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n<blockquote><p>\u4e00\u65b9\u3001\u3053\u308c\u3089\u306e\u6a5f\u80fd\u306f\u3042\u307e\u308a\u5f79\u306b\u7acb\u3061\u307e\u305b\u3093\u3002<code>strip_tags()<\/code>\u81ea\u4f53\u306b\u306f\u6a5f\u80fd\u306e\u9650\u754c\u3068\u30d0\u30b0\u304c\u3042\u308a\u3001\u3042\u307e\u308a\u4fbf\u5229\u306a\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u4e0a\u306b\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30cd\u30a4\u30c6\u30a3\u30d6\u30b5\u30dd\u30fc\u30c8\u3092\u63d0\u4f9b\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p><\/blockquote>\n<p>\u3057\u305f\u304c\u3063\u3066\u4eca\u56de\u306eRFC\u3067\u306f\u3001<code>fgetss()<\/code>\u00a0\u3001<code>gzgetss()<\/code> \u3068<code>SplFileObject::fgetss()<\/code> \u304c\u63a8\u9032\u3055\u308c\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>PHP 7.3\u306eWordPress\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff\u306f\uff1f<\/h2>\n<p>WordPress\u306e<a href=\"https:\/\/wordpress.org\/about\/stats\/\" target=\"_blank\" rel=\"noopener noreferrer\">\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\u306e32.9\uff05\u3057\u304bPHP 7\u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u3066\u3044\u307e\u305b\u3093\u3002\u308f\u305a\u304b4\uff05\u304c<a href=\"https:\/\/kinsta.com\/jp\/blog\/php-7-2\/\" target=\"_blank\" rel=\"noopener noreferrer\">PHP 7.2<\/a>\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3054\u89a7\u306e\u3068\u304a\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306e38\uff05\u4ee5\u4e0a\u306e\u5927\u591a\u6570\u306f\u307e\u3060PHP 5.6\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3055\u3089\u306b\u9762\u767d\u3044\u3053\u3068\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u306e28.5\uff05\u4ee5\u4e0a\u304c\u30b5\u30dd\u30fc\u30c8\u306e\u306a\u3044PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u30022016\u5e7412\u6708\u306b\u3001WordPress.org\u306f<a href=\"https:\/\/wordpress.org\/about\/requirements\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u63a8\u9032\u3055\u308c\u308b\u30d0\u30fc\u30b8\u30e7\u30f3<\/a>\u3092PHP 5.6\uff5ePHP 7\u4ee5\u4e0a\u306b\u3059\u308b\u3053\u3068\u3092\u5e83\u544a\u3057\u307e\u3057\u305f\u3002<\/p>\n<figure id=\"attachment_31275\" aria-describedby=\"caption-attachment-31275\" style=\"width: 1404px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-31275 size-full\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/08\/wordpress-php-versions.png\" alt=\"WordPress\u306b\u3066\u306e\u5404PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u4f7f\u7528\u7387\" width=\"1404\" height=\"1054\"><figcaption id=\"caption-attachment-31275\" class=\"wp-caption-text\">WordPress\u306b\u3066\u306e\u5404PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u4f7f\u7528\u7387<\/figcaption><\/figure>\n<h3>PHP 7\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/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<\/ul>\n<p>\u5f53\u793e\u3082\u3001\u72ec\u81ea\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\u5b9f\u884c\u3057\u307e\u3057\u305f\u3002\u4e0a\u8a18\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3068\u540c\u69d8\u306b\u3001WooCommerce 5.0\u3068PHP 7.3\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u306fPHP 5.6\u3068\u6bd4\u8f03\u3057\u30661\u79d2\u3042\u305f\u308a\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\uff08\u30ea\u30af\u30a8\u30b9\u30c8\uff09\u304c3\u500d\u591a\u304f\u5b9f\u884c\u3055\u308c\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<figure id=\"attachment_20428\" aria-describedby=\"caption-attachment-20428\" style=\"width: 940px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-20428 size-full\" title=\"WordPress PHP benchmarks\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2018\/12\/wordpress-5.0-php-benchmarks-v2.png\" alt=\"WWordPress 5.0\u306ePHP\u30d9\u30f3\u30c1\u30de\u30fc\u30af\" width=\"940\" height=\"788\" data-must_clone=\"true\"><figcaption id=\"caption-attachment-20428\" 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\u00a0PHP 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\u00a0<strong>PHP 7.3 \u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u7d50\u679c\uff1a253.20\u30ea\u30af\u30a8\u30b9\u30c8\/\u79d2<\/strong><strong>\ud83c\udfc6<\/strong><\/li>\n<\/ul>\n<p>PHP 7.3\u3068\u7d44\u307f\u5408\u308f\u305b\u305fWordPress 4.9.8\u304cWordPress 5.0\u3088\u308a\u308f\u305a\u304b\u306b\u901f\u3044\u3053\u3068\u3082\u8208\u5473\u6df1\u3044\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_37398\" aria-describedby=\"caption-attachment-37398\" style=\"width: 940px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-37398\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2018\/12\/wordpress-4.9.8-php-benchmarks.png\" alt=\"WordPress 4.9.8\u306ePHP\u30d9\u30f3\u30c1\u30de\u30fc\u30af\" width=\"940\" height=\"788\" data-must_clone=\"true\"><figcaption id=\"caption-attachment-37398\" class=\"wp-caption-text\">WordPress 4.9.8\u306ePHP\u30d9\u30f3\u30c1\u30de\u30fc\u30af<\/figcaption><\/figure>\n<ul>\n<li>WordPress 4.9.8 PHP 5.6\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u7d50\u679c\uff1a97.59\u30ea\u30af\u30a8\u30b9\u30c8\/\u79d2<\/li>\n<li>WordPress 4.9.8 PHP 7.0\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u7d50\u679c\uff1a221.42\u30ea\u30af\u30a8\u30b9\u30c8\/\u79d2<\/li>\n<li>WordPress 4.9.8 PHP 7.1\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u7d50\u679c\uff1a 233.78\u30ea\u30af\u30a8\u30b9\u30c8\/\u79d2<\/li>\n<li>WordPress 4.9.8 PHP 7.2\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u7d50\u679c\uff1a250.36\u30ea\u30af\u30a8\u30b9\u30c8\/\u79d2<\/li>\n<li>WordPress\u00a04.9.8\u00a0<strong>PHP 7.3\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u7d50\u679c\uff1a276.31\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>\u3054\u5229\u7528\u306ePHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3059\u308b<\/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\u3046\u3053\u3068\u3067\u3059\u3002 HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u6700\u521d\u306e\u30d8\u30c3\u30c0\u30fc\u306b\u306f\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u8868\u793a\u3055\u308c\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_13685\" aria-describedby=\"caption-attachment-13685\" style=\"width: 1679px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-13685 size-full\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2017\/10\/check-version-of-php-1.png\" alt=\"PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3059\u308b\" width=\"1679\" height=\"644\"><figcaption id=\"caption-attachment-13685\" class=\"wp-caption-text\">PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3059\u308b<\/figcaption><\/figure>\n<p>\u4e0a\u8a18\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u4f1a\u793e\u304c<code>X-Powered-By<\/code>\u30d8\u30c3\u30c0\u30fc\u306e\u5024\u3092\u5909\u66f4\u3057\u306a\u3044\u9650\u308a\u3067\u304d\u307e\u3059\u3002\u5909\u66f4\u3057\u3066\u3044\u308b\u5834\u5408\u3001PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\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<\/p>\n<figure id=\"attachment_37448\" aria-describedby=\"caption-attachment-37448\" style=\"width: 1942px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-37448\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2018\/08\/check-php-version-in-wordpress.png\" alt=\"WordPress\u306b\u3066PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3059\u308b\" width=\"1942\" height=\"1038\" data-must_clone=\"true\"><figcaption id=\"caption-attachment-37448\" class=\"wp-caption-text\">WordPress\u306b\u3066PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3059\u308b<\/figcaption><\/figure>\n<p>\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>PHP 7.3\u306b\u66f4\u65b0\u3059\u308b<\/h3>\n<p>PHP 7.3\u306f\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u3066\u3044\u308b\u70ba\u3001\u3059\u3050\u306b\u8a66\u9a13\u3057\u59cb\u3081\u305f\u65b9\u304c\u3088\u3044\u3067\u3057\u3087\u3046\u3002WordPress\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\u8a66\u9a13\u3059\u308b<\/a>\u3053\u3068\u3082\u3001\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u304b\u3089\u3055\u307e\u3056\u307e\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u306ePHP\u3092\u8a66\u9a13\u3067\u304d\u308b<a href=\"https:\/\/docs.docker.com\/get-started\/\" target=\"_blank\" rel=\"noopener noreferrer\">Docker<\/a>\u306e\u3088\u3046\u306a\u74b0\u5883\u3067\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u672c\u756a\u74b0\u5883\u306b\u4e00\u756a\u8fd1\u3044\u70ba\u3001\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u74b0\u5883\u3092\u3054\u5229\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002MyKinsta\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3067\u6570\u56de\u30af\u30ea\u30c3\u30af\u3060\u3051\u3067<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\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_31534\" aria-describedby=\"caption-attachment-31534\" style=\"width: 1439px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-31534 size-full\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/11\/mykinsta-create-staging-environment-0-2.png\" alt=\"WordPress\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u74b0\u5883\" width=\"1439\" height=\"630\" srcset=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/11\/mykinsta-create-staging-environment-0-2.png 1439w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/11\/mykinsta-create-staging-environment-0-2-300x131.png 300w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/11\/mykinsta-create-staging-environment-0-2-1024x448.png 1024w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/11\/mykinsta-create-staging-environment-0-2-768x336.png 768w\" sizes=\"auto, (max-width: 1439px) 100vw, 1439px\" \/><figcaption id=\"caption-attachment-31534\" class=\"wp-caption-text\">WordPress\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u74b0\u5883<\/figcaption><\/figure>\n<p>\u672c\u756a\u30b5\u30a4\u30c8\u3067\u4f7f\u7528\u3059\u308b\u524d\u306b\u5341\u5206\u306b\u30c6\u30b9\u30c8\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u30b5\u30a4\u30c8\u7528\u306ePHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u300c\u30c4\u30fc\u30eb\u300d\u306e\u300cPHP\u30a8\u30f3\u30b8\u30f3\u300d\u3067\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u3067\u9078\u629e\u3067\u304d\u3001\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u88fd\u30d7\u30e9\u30b0\u30a4\u30f3\u3068\u30c6\u30fc\u30de\u3068\u306e\u4e92\u63db\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u306e\u8a66\u9a13\u304c\u958b\u59cb\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_31535\" aria-describedby=\"caption-attachment-31535\" style=\"width: 1428px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-31535 size-full\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/11\/mykinsta-switch-to-php-7-30.png\" alt=\"PHP 7.3\u3078\u306e\u5207\u308a\u66ff\u3048\" width=\"1428\" height=\"788\" srcset=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/11\/mykinsta-switch-to-php-7-30.png 1428w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/11\/mykinsta-switch-to-php-7-30-300x166.png 300w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/11\/mykinsta-switch-to-php-7-30-1024x565.png 1024w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/11\/mykinsta-switch-to-php-7-30-768x424.png 768w\" sizes=\"auto, (max-width: 1428px) 100vw, 1428px\" \/><figcaption id=\"caption-attachment-31535\" class=\"wp-caption-text\">PHP 7.3\u3078\u306e\u5207\u308a\u66ff\u3048<\/figcaption><\/figure>\n<p>PHP\u306e\u6700\u65b0\u7248\u304c\u6b63\u5e38\u306b\u6a5f\u80fd\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u305f\u4e0a\u3067\u3001\u672c\u756a\u30b5\u30a4\u30c8\u3092PHP 7.3\u306b\u5909\u66f4\u3059\u308b\u304b\u3001\u5909\u66f4\u3082\u52a0\u3048\u305f\u5834\u5408\u306b\u306f<a href=\"https:\/\/kinsta.com\/jp\/docs\/wordpress-hosting\/staging-environment\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u30b5\u30a4\u30c8\u3092\u672c\u756a\u30b5\u30a4\u30c8\u306b\u516c\u958b\u3057\u307e\u3059<\/a>\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>PHP\u306e\u4eca\u307e\u3067\u6700\u9ad8\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u3042\u308b\u6700\u65b0\u7248\u304c\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3057\u305f\u3002\u30d5\u30ec\u30ad\u30b7\u30d6\u30eb\u306aheredoc\u3068nowdoc\u3001\u95a2\u6570\u547c\u3073\u51fa\u3057\u3067\u672b\u5c3e\u30ab\u30f3\u30de\u3001\u307e\u305f\u306f<code>list()<\/code>\u3067\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u6e21\u3057\u304c\u4f7f\u3048\u308b\u3088\u3046\u306b\u308a\u307e\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001\u500b\u4eba\u7684\u306b\u91cd\u8981\u3060\u3068\u5224\u65ad\u3057\u305f\u6539\u5584\u70b9\u306e\u6982\u8981\u3092\u7d39\u4ecb\u3057\u307e\u3057\u305f\u304c\u3001\u7686\u69d8\u306e\u597d\u304d\u306a\u3082\u306e\u306f\u4f55\u3067\u3059\u304b\u3002\u4eca\u56de\u6539\u5584\u3055\u308c\u308b\u6a5f\u80fd\u3092\u3069\u306e\u3088\u3046\u306b\u6d3b\u7528\u3059\u308b\u4e88\u5b9a\u3067\u3059\u304b\u3002\u3054\u610f\u898b\u3092\u304a\u5bc4\u305b\u304f\u3060\u3055\u3044\u3002<a href=\"https:\/\/kinsta.com\/jp\/blog\/is-php-dead\/\">PHP\u306f\u672a\u3060\u73fe\u5f79<\/a>\u3067\u3059\u3002<\/p>\n\n<p>PHP 7.3\u306b\u95a2\u3059\u308b\u63d0\u6848\u306e\u5b8c\u5168\u306a\u30ea\u30b9\u30c8\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/wiki.php.net\/rfc#php_73\" target=\"_blank\" rel=\"noopener noreferrer\">PHP 7.3\u306e\u30b3\u30e1\u30f3\u30c8\u52df\u96c6<\/a>\u30da\u30fc\u30b8\u3068GitHub\u306e<a href=\"https:\/\/github.com\/php\/php-src\/blob\/php-7.3.0beta1\/UPGRADING\" target=\"_blank\" rel=\"noopener noreferrer\">PHP 7.3\u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u30ce\u30fc\u30c8<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>2018\u5e7412\u67086\u65e5\u306b\u3001PHP\u306e\u6700\u65b0\u7248\u3067\u3042\u308bPHP  &#8230;<\/p>\n","protected":false},"author":36,"featured_media":22036,"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-21959","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 7.3\u306e\u65b0\u6a5f\u80fd\uff08Kinsta\u3067\u5229\u7528\u53ef\u80fd\uff09<\/title>\n<meta name=\"description\" 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