{"id":4641,"date":"2021-12-02T16:59:52","date_gmt":"2021-12-02T07:59:52","guid":{"rendered":"https:\/\/column.prime-strategy.co.jp\/?p=4641"},"modified":"2026-02-17T02:09:31","modified_gmt":"2026-02-16T17:09:31","slug":"post-4641","status":"publish","type":"post","link":"https:\/\/kusanagi.tokyo\/column\/archives\/column_4641","title":{"rendered":"PHP\u91cd\u93ae\u306e\u5ee3\u5ddd\u985e\u6c0f\u306e\u30b3\u30e9\u30e0\u300cPHP\u306e\u6700\u65b0\u72b6\u6cc1\uff1aPHP 8.1\u3064\u3044\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u308b\uff08\u7b2c21\u56de\uff09\u300d"},"content":{"rendered":"\n

1\u5e74\u9593\u306b\u6e21\u308a\u958b\u767a\u304c\u884c\u308f\u308c\u3066\u304d\u305fPHP8\u306e\u6700\u65b0\u7248\u3067\u3042\u308bPHP 8.1.0\u304c11\u670825\u65e5\u306b\u6b63\u5f0f\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3057\u305f\uff0e\u672c\u7a3f\u3067\u306f\uff0cPHP \u30ea\u30ea\u30fc\u30b9\u95a2\u9023\u60c5\u5831\u304a\u3088\u3073\u4eca\u5f8c\u306ePHP\u306e\u30ea\u30ea\u30fc\u30b9\u4e88\u5b9a\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3059\uff0e\u307e\u305f\uff0cPHP\u958b\u767a\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3092\u652f\u3048\u308b\u305f\u3081\u306e\u8ca1\u653f\u7684\u57fa\u76e4\u3068\u3057\u3066PHP Foundation\u304c11\u670822\u65e5\u306b\u8a2d\u7acb\u3055\u308c\u307e\u3057\u305f\u306e\u3067\uff0c\u4f75\u305b\u3066\u7d39\u4ecb\u3044\u305f\u3057\u307e\u3059\uff0e<\/p>\n\n\n\n

PHP Foundation\u8a2d\u7acb<\/h4>\n\n\n\n

\u3000PHP\u304c\u8a95\u751f\u3057\u3066\u304b\u308926\u5e74\u9593\u306b\u306a\u308a\u307e\u3059\u304c\uff0c\u4e00\u8cab\u3057\u3066\u7279\u5b9a\u306e\u4f01\u696d\u306b\u4f9d\u5b58\u305b\u305a\u306b\u30dc\u30e9\u30f3\u30c6\u30a3\u30a2\u30d9\u30fc\u30b9\u306e\u958b\u767a\u304c\u884c\u308f\u308c\u3066\u304d\u307e\u3057\u305f\uff0e\u3082\u3061\u308d\u3093\uff0cZend\u793e\u304cPHP\u306e\u5fc3\u81d3\u90e8\u3067\u3042\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u30a8\u30f3\u30b8\u30f3\u3084\u30ad\u30e3\u30c3\u30b7\u30e5\u6a5f\u80fd\uff0cJIT\u6a5f\u80fd\u3068\u3044\u3063\u305f\u4e3b\u8981\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u305f\u308a\uff0cFacebook\u793e\u304c\u4e3b\u8981\u306a\u8ca2\u732e\u3092\u3057\u305f\u308a\u3068\u3044\u3063\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u3057\u305f\u304c\uff0c\u91cd\u8981\u306a\u610f\u601d\u6c7a\u5b9a\u306fPHP\u30b0\u30eb\u30fc\u30d7\u3068\u547c\u3070\u308c\u308b\u4e3b\u8981\u306a\u958b\u767a\u8005\u304c\u4e3b\u4f53\u3068\u306a\u308a\uff0c\u958b\u767a\u8005\u306e\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306b\u3088\u308b\u8b70\u8ad6\uff0c\u6295\u7968\u306b\u3088\u308a\u884c\u308f\u308c\u3066\u3044\u307e\u3059\uff0e\u3053\u306e\u904b\u55b6\u65b9\u91dd\u306f\uff0c\u7279\u5b9a\u306e\u4f01\u696d\u306b\u652f\u914d\u3055\u308c\u308b\u3053\u3068\u306a\u304f\uff0cPHP\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3092\u904b\u55b6\u3059\u308b\u305f\u3081\u306b\u671b\u307e\u3057\u3044\u65b9\u6cd5\u3067\u3059\u304c\uff0c\u4ed6\u65b9\uff0cPHP\u306e\u958b\u767a\u306b\u643a\u308f\u308b\u958b\u767a\u8005\u304c\u5168\u304f\u5831\u916c\u3092\u5f97\u3089\u308c\u306a\u3044\u305f\u3081\uff0c\u5b89\u5b9a\u3057\u3066\u958b\u767a\u306e\u54c1\u8cea\u3092\u4fdd\u3064\u3053\u3068\u304c\u96e3\u3057\u304f\uff0c\u7279\u5b9a\u306e\u958b\u767a\u8005\u306e\u9ad8\u3044\u30e2\u30c1\u30d9\u30fc\u30b7\u30e7\u30f3\u306b\u652f\u3048\u3089\u308c\u308b\u72b6\u614b\u3068\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u6307\u6458\u3055\u308c\u3066\u304d\u307e\u3057\u305f\uff0e\u6700\u8fd1\u3067\u306f\uff0c\u4e3b\u8981\u306a\u82e5\u624b\u958b\u767a\u8005\u3067\u3042\u308bNikita Popov\u6c0f\u304cLLVM\u95a2\u9023\u306e\u958b\u767a\u306b\u6ce8\u529b\u3059\u308b\u305f\u3081PHP\u306e\u958b\u767a\u8005\u3068\u3057\u3066\u306e\u8ca2\u732e\u5ea6\u3092\u4e0b\u3052\u308b\u3053\u3068\u3092\u767a\u8868\u3057\u3066\u3044\u307e\u3059\uff0e\u3053\u3046\u3057\u305f\u7d4c\u7def\u304b\u3089\uff0cPHP\u306e\u958b\u767a\u306b\u95a2\u308f\u308b\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u8ca1\u653f\u7684\u652f\u63f4\u3092\u884c\u3046\u975e\u55b6\u5229\u8ca1\u56e3\uff08NPO\uff09\u3068\u3057\u3066PHP  Foundation\u306e\u8a2d\u7acb\u304c11\u670822\u65e5\u306b\u767a\u8868\u3055\u308c\u307e\u3057\u305f\uff0e\u3053\u306e\u8ca1\u56e3\u306b\u306f\uff0cZend\u793e\uff0cWordPress\u95a2\u9023\u3067\u6709\u540d\u306aAutomattic\u793e\u3092\u542b\u3081\uff0c\u4e3b\u8981\u306a9\u56e3\u4f53\u304c\u652f\u6301\u3092\u884c\u3063\u3066\u3044\u307e\u3059\uff0e\u904b\u55b6\u306f\uff0cOpen Collective\u3092\u7528\u3044\u305f\u30af\u30e9\u30a6\u30c9\u30d5\u30a1\u30f3\u30c7\u30a3\u30f3\u30b0\u5f62\u5f0f\uff08https:\/\/opencollective.com\/phpfoundation<\/a>\uff09\u3067\u884c\u308f\u308c\uff0c\u3059\u3067\u306b\u652f\u63f4\u306e\u53d7\u4ed8\u304c\u59cb\u307e\u3063\u3066\u3044\u307e\u3059\uff0e\u8ca1\u56e3\u306e\u904b\u55b6\u306f\uff0c\u5f53\u9762\uff0c\u30b9\u30dd\u30f3\u30b5\u30fc\u4ee3\u8868\u3068PHP\u30b0\u30eb\u30fc\u30d7\u306b\u3088\u308a\u884c\u308f\u308c\uff0c\u904b\u55b6\u65b9\u91dd\u30fb\u898f\u5247\u7b49\u3092\u6c7a\u3081\u305f\u5f8c\uff0c\u6301\u7d9a\u7684\u306a\u904b\u55b6\u7d44\u7e54\u306b\u5f15\u304d\u7d99\u304c\u308c\u308b\u4e88\u5b9a\u3067\u3059\uff0ePHP Foundation\u306e\u652f\u63f4\u3092\u53d7\u3051\u308b\u305f\u3081\u306e\u7533\u3057\u8fbc\u307f\u3082\u3059\u3050\u306b\u544a\u77e5\u3055\u308c\u308b\u4e88\u5b9a\u3067\u3059\uff0e<\/p>\n\n\n\n

\u3000\u306a\u304a\uff0cPHP\u306e\u958b\u767a\u30d7\u30ed\u30bb\u30b9\u81ea\u4f53\u306b\u306f\u5909\u66f4\u306f\u306a\u304f\uff0c\u5f93\u6765\u901a\u308a\uff0cPHP\u958b\u767a\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306b\u3088\u308a\u610f\u601d\u6c7a\u5b9a\u304c\u884c\u308f\u308c\u308b\u3053\u3068\u306b\u306a\u3063\u3066\u3044\u307e\u3059\uff0ePHP\u306e\u958b\u767a\u306b\u95a2\u308f\u308b\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u751f\u6d3b\u57fa\u76e4\u304c\u7d99\u7d9a\u7684\u306b\u5b89\u5b9a\u3059\u308b\u3053\u3068\u3067\uff0cPHP\u306e\u6a5f\u80fd\u306e\u9032\u5316\u3084\u62e1\u5145\uff0c\u54c1\u8cea\u306e\u5b89\u5b9a\u5316\u306b\u3064\u306a\u304c\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u307e\u3059\uff0e<\/p>\n\n\n\n

PHP 8.1\u306e\u958b\u767a\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb<\/h4>\n\n\n\n

PHP 8.1\u306e\u958b\u767a\u3067\u306f\uff0c7\u670820\u306b\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u30d5\u30ea\u30fc\u30ba\u304c\u884c\u308f\u308c\u305f\u5f8c\uff0c7\uff5e8\u6708\u306b\u30d9\u30fc\u30bf\u7248\uff0c\uff19\uff5e11\u6708\u306b\u30ea\u30ea\u30fc\u30b9\u5019\u88dc\u7248\u306e\u30ea\u30ea\u30fc\u30b9\u304c\u8a08\u753b\u901a\u308a\u5b9f\u65bd\u3055\u308c\u307e\u3057\u305f\uff0e\u30ea\u30ea\u30fc\u30b9\u5019\u88dc\u7248\u306f\uff12\u9031\u9593\u6bce\u306b\u5408\u8a086\u56de\u30ea\u30ea\u30fc\u30b9\u3055\u308c\uff0c\u30ea\u30ea\u30fc\u30b9\u306b\u5411\u3051\u305f\u6700\u7d42\u7684\u306a\u78ba\u8a8d\u304c\u884c\u308f\u308c\u3066\u3044\u307e\u3059\uff0ePHP\uff18.1\u306e\u30ea\u30ea\u30fc\u30b9\u5224\u65ad\u306f\uff0c\u30ea\u30ea\u30fc\u30b9\u30de\u30cd\u30fc\u30b8\u30e3\u3067\u3042\u308bPatrick Allaert\u6c0f\u304c\u884c\u3063\u3066\u3044\u307e\u3059\uff0e<\/p>\n\n\n\n

11\u670825\u65e5\u306bPHP 8.1.0\u304c\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305f\u5f8c\uff0cPHP 8.1\u7cfb\u306b\u3064\u3044\u3066\u306f\uff0c\u307b\u307c\u6708\u306b\uff11\u56de\u306e\u30da\u30fc\u30b9\u3067\u30d0\u30b0\u4fee\u6b63\u3092\u884c\u3063\u305f\u30de\u30a4\u30ca\u30fc\u30d0\u30fc\u30b8\u30e7\u30f3\uff08PHP 8.1.1, \u2026\uff09\u304c\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u308b\u4e88\u5b9a\u3067\u3059\uff0e<\/p>\n\n\n\n

\u672c\u9023\u8f09\u3067\u306f\uff0c\u524d\u56de\u307e\u3067\u306bPHP 8.1\u3067\u5c0e\u5165\u3055\u308c\u308b\u65b0\u6a5f\u80fd\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u3066\u304d\u307e\u3057\u305f\uff0e\u4eca\u56de\u306f\uff0c\u6b8b\u308b\u6a5f\u80fd\u304a\u3088\u3073\u5f8c\u65b9\u4e92\u63db\u6027\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u5909\u66f4\u70b9\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3059\uff0e<\/p>\n\n\n\n

DNS-over-HTTPS (DoH)\u306e\u30b5\u30dd\u30fc\u30c8<\/h4>\n\n\n\n

PHP 8.1\u304b\u3089\u306fCurl\u30a8\u30af\u30b9\u30c6\u30f3\u30b7\u30e7\u30f3\u306b\u3088\u308aWeb\u30da\u30fc\u30b8\u3092\u53d6\u5f97\u3059\u308b\u969b\u306eDNS\u30af\u30a8\u30ea\u306b\u304a\u3044\u3066\uff0c\u30bb\u30ad\u30e5\u30a2\u306a\u63a5\u7d9a\u3092\u884c\u3046HTTPS\u3092\u5229\u7528\u3059\u308b DNS-over-HTTPS (DoH)\u3092\u6307\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff0e \u4ee5\u4e0b\u306bYahoo\uff01\u306e\u30da\u30fc\u30b8\u3092\u53d6\u5f97\u3059\u308b\u7c21\u5358\u306a\u4f8b\u3092\u793a\u3057\u307e\u3059\uff0e<\/p>\n\n\n\n

$ch = curl_init('https:\/\/www.yahoo.co.jp');<\/p>\n\n\n\n

curl_setopt($ch, CURLOPT_DOH_URL, 'https:\/\/dns.google\/dns-query');<\/p>\n\n\n\n

curl_exec($ch);<\/p>\n\n\n\n

DoH\u3092\u5229\u7528\u3059\u308b\u306b\u306f\uff0ccurl_exec()\u95a2\u6570\u306b\u3088\u308aWeb\u30da\u30fc\u30b8\u3092\u53d6\u5f97\u3059\u308b\u524d\u306b\uff0ccurl_setopt()\u95a2\u6570\u306b\u3088\u308aCURLOPT_DOH_URL\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u6307\u5b9a\u3057\uff0cDoH\u306b\u3088\u308aDNS\u30af\u30a8\u30ea\u3092\u884c\u3046URL\u3092\u6307\u5b9a\u3057\u307e\u3059\uff0e\u3053\u3053\u3067\u306f\uff0cGoogle\u306ePublic DNS\u306eURL\uff08https:\/\/dns.google\/dns-query\uff09\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\uff0e<\/p>\n\n\n\n

\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u6642\u306efull_path\u8ffd\u52a0<\/h4>\n\n\n\n

\u3000PHP\u3067\u306f\uff0cHTML\u30d5\u30a9\u30fc\u30e0\u306b\u3088\u308b\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\uff0e\u6700\u8fd1\u306eWeb\u30d6\u30e9\u30a6\u30b6\u3067\u306fwebkitdirectory\u5c5e\u6027\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u308a\uff0c\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c4\u30ea\u30fc\u5168\u4f53\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\uff0e<\/p>\n\n\n\n

\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u6bce\u306e\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u306b\u5bfe\u5fdc\u3057\u305fHTML\u30d5\u30a9\u30fc\u30e0\u306e\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\uff0e<\/p>\n\n\n\n

<form action=\"\" method=\"post\" enctype=\"multipart\/form-data\"><\/p>\n\n\n\n

    <input name=\"v[]\" type=\"file\" webkitdirectory multiple \/><\/p>\n\n\n\n

    <input type=\"submit\" \/><\/p>\n\n\n\n

<\/form><\/p>\n\n\n\n

PHP\u3067\u306f\uff0c\u30d5\u30a1\u30a4\u30eb\u540d\u306a\u3069\u306e\u5c5e\u6027\u3092\u30b0\u30ed\u30fc\u30d0\u30eb\u914d\u5217\u5909\u6570$_FILES\u306b\u3088\u308a\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff0e\u3057\u304b\u3057\uff0c\u5f93\u6765\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306ePHP\u3067\u306f\uff0c$_FILES\u306b\u306f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u69cb\u9020\u304c\u4fdd\u5b58\u3055\u308c\u306a\u3044\u4ed5\u69d8\u3067\u3042\u3063\u305f\u305f\u3081\uff0c\u4f8b\u3048\u3070\uff0c\u8907\u6570\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u540c\u3058\u540d\u524d\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u3042\u308b\u3068\u533a\u5225\u3059\u308b\u3053\u3068\u304c\u96e3\u3057\u304f\u306a\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u307e\u3057\u305f\uff0e<\/p>\n\n\n\n

\u4f8b\u3048\u3070\uff0c\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u540c\u3058\u540d\u524d\uff08nama.txt\uff09\u306e\uff12\u3064\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u542b\u3080\u30d5\u30a9\u30eb\u30c0fruit\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u5834\u5408\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\uff0e<\/p>\n\n\n\n

fruit\/orange\/name.txt<\/p>\n\n\n\n

fruit\/banana\/name.txt<\/p>\n\n\n\n

\u30d5\u30a1\u30a4\u30eb\u540d\u306f\uff0cHTML\u30d5\u30a9\u30fc\u30e0\u306b\u6307\u5b9a\u3057\u305f\u914d\u5217\u5909\u6570\u540d\uff08v[]\uff09\u3092\u7528\u3044\u3066$_FILES[\"v\"][\"name\"]\u306e\u3088\u3046\u306b\u53d6\u5f97\u3067\u304d\u307e\u3059\uff0e\u3053\u306e\u4f8b\u3067\u306f\uff0c\uff12\u3064\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u3066\u3044\u308b\u305f\u3081\uff0c\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u914d\u5217\u3068\u3057\u3066\u53d6\u5f97\u3055\u308c\u307e\u3059\uff0e<\/p>\n\n\n\n

$_FILES[\"v\"][\"name\"][0] = \"name.txt\"<\/p>\n\n\n\n

$_FILES[\"v\"][\"name\"][1] = \"name.txt\"<\/p>\n\n\n\n

\u307e\u305f\uff0c\u305d\u308c\u305e\u308c\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u5b9f\u4f53\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30c6\u30f3\u30dd\u30e9\u30ea\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u30d1\u30b9\u3068\u3057\u3066\u53d6\u5f97\u3067\u304d\u307e\u3059\uff0e\u306a\u304a\uff0c\u30c6\u30f3\u30dd\u30e9\u30ea\u30d5\u30a1\u30a4\u30eb\u306e\u4fdd\u5b58\u5148\u306f\uff0cPHP\u8a2d\u5b9a\u30aa\u30d7\u30b7\u30e7\u30f3upload_tmp_dir\u3067\u6307\u5b9a\u3067\u304d\u307e\u3059\uff0e<\/p>\n\n\n\n

$_FILES[\"v\"][\"tmp_name\"][0] = \"\/tmp\/phpxxxx\"<\/p>\n\n\n\n

$_FILES[\"v\"][\"tmp_name\"][1] = \"\/tmp\/phpyyyy\"<\/p>\n\n\n\n

\u901a\u5e38\uff0c\u5143\u306e\u30d5\u30a1\u30a4\u30eb\u540d\u3092\u7528\u3044\u3066\u30b5\u30fc\u30d0\u30fc\u4e0a\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\uff0cmove_uploaded_file\u95a2\u6570\u306b\u3088\u308a\u30c6\u30f3\u30dd\u30e9\u30ea\u30d5\u30a1\u30a4\u30eb\u3092\u30b5\u30fc\u30d0\u30fc\u4e0a\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u30b3\u30d4\u30fc\u3057\u307e\u3059\uff0e\u3057\u304b\u3057\uff0c\u3053\u306e\u4f8b\u3067\u306f\uff0c\u5143\u306e\uff12\u3064\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u540d\u524d\u304c\u540c\u3058\u3067\u3042\u308b\u305f\u3081\uff0c\u540c\u3058\u30d5\u30a1\u30a4\u30eb\u306b\u4e0a\u66f8\u304d\u3057\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\uff0e<\/p>\n\n\n\n

\u3000PHP 8.1\u3067\u306f\uff0c\u4ee5\u4e0b\u306e\u3088\u3046\u306afull_path\u5c5e\u6027\u304c\u8ffd\u52a0\u3055\u308c\uff0c\u5143\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u69cb\u9020\u306e\u53d6\u5f97\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\uff0e<\/p>\n\n\n\n

$_FILES[\"v\"][\"full_path\"][0] = \"fruit\/orange\/name.txt\"<\/p>\n\n\n\n

$_FILES[\"v\"][\"full_path\"][1] = \"fruit\/banana\/name.txt\"<\/p>\n\n\n\n

\u3053\u308c\u306b\u3088\u308a\uff0c\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u6bce\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3092\u884c\u3063\u305f\u5834\u5408\u3067\u3082\uff0c\u30b5\u30fc\u30d0\u30fc\u4e0a\u3067\u5143\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u69cb\u9020\u3092\u5fa9\u5143\u3057\u305f\u308a\uff0c\u76f8\u5bfe\u30d1\u30b9\u3067\u4fdd\u5b58\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff0e<\/p>\n\n\n\n

\u30e1\u30bd\u30c3\u30c9\u7d99\u627f\u6642\u306estatic\u5909\u6570\u306e\u5171\u6709\u5316<\/h4>\n\n\n\n

PHP\u3067\u306f\uff0c\u30af\u30e9\u30b9\u5185\u3067\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u5909\u6570\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff0e\u4ee5\u4e0b\u306e\u4f8b\u306e\u3088\u3046\u306b\u30af\u30e9\u30b9A\u3067\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u5909\u6570$cnt\u3092\u5b9a\u7fa9\u3057\uff0c\u30af\u30e9\u30b9A\u3092\u7d99\u627f\u3059\u308b\u30af\u30e9\u30b9B\u3092\u5b9a\u7fa9\u3057\u3066\u307f\u307e\u3057\u3087\u3046\uff0e<\/p>\n\n\n\n

class A {<\/p>\n\n\n\n

    private static $cnt = 0;<\/p>\n\n\n\n

    public static function counter() {<\/p>\n\n\n\n

        return ++static::$cnt;<\/p>\n\n\n\n

    }<\/p>\n\n\n\n

}<\/p>\n\n\n\n

class B extends A {}<\/p>\n\n\n\n

counter\u30e1\u30bd\u30c3\u30c9\u306b\u3088\u308a\uff0c\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u5909\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u30a2\u30c3\u30d7\u3059\u308b\u3053\u3068\u3092\u8003\u3048\u307e\u3059\uff0e\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\uff0c<\/p>\n\n\n\n

var_dump(A::counter());<\/p>\n\n\n\n

var_dump(A::counter()); <\/p>\n\n\n\n

var_dump(B::counter()); <\/p>\n\n\n\n

var_dump(B::counter());<\/p>\n\n\n\n

\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30af\u30e9\u30b9A\u306ecounter\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u884c\u3057\u305f\u5834\u5408\u3067\u3082\uff0c\u30af\u30e9\u30b9B\u306ecounter\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u884c\u3057\u305f\u5834\u5408\u3067\u3082\uff0c\uff11\u3064\u305a\u3064\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u5909\u6570\u306e\u5024\u304c\u30ab\u30a6\u30f3\u30c8\u30a2\u30c3\u30d7\u3055\u308c\u3066\u3044\u304d\u307e\u3059\uff0e<\/p>\n\n\n\n

int(1)<\/p>\n\n\n\n

int(2)<\/p>\n\n\n\n

int(3)<\/p>\n\n\n\n

int(4)<\/p>\n\n\n\n

\u3053\u308c\u306f\uff0c\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u5909\u6570\u306e\u5b9f\u4f53\u304c\u7d99\u627f\u3057\u305f\u30af\u30e9\u30b9\u306b\u304a\u3044\u3066\u3082\u5171\u6709\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3067\u3059\uff0e<\/p>\n\n\n\n

\u6b21\u306b\uff0c\u4ee5\u4e0b\u306e\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\uff0e\u4e0a\u306e\u4f8b\u3068\u307b\u307c\u540c\u3058\u3067\u3059\u304c\uff0c\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u5909\u6570$cnt\u304ccounter\u30e1\u30bd\u30c3\u30c9\u306e\u5185\u90e8\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\uff0e<\/p>\n\n\n\n

class A {<\/p>\n\n\n\n

    public static function counter() {<\/p>\n\n\n\n

        static $cnt = 0;<\/p>\n\n\n\n

        return ++$cnt;<\/p>\n\n\n\n

    }<\/p>\n\n\n\n

}<\/p>\n\n\n\n

class B extends A {}<\/p>\n\n\n\n

PHP 8.1\u3088\u308a\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306ePHP\u3067\u540c\u69d8\u306b\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u3066\u307f\u307e\u3057\u3087\u3046\uff0e<\/p>\n\n\n\n

var_dump(A::counter());<\/p>\n\n\n\n

var_dump(A::counter()); <\/p>\n\n\n\n

var_dump(B::counter()); <\/p>\n\n\n\n

var_dump(B::counter());<\/p>\n\n\n\n

\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u524d\u8a18\u306e\u4f8b\u3068\u306f\u7570\u306a\u308b\u51fa\u529b\u3068\u306a\u308a\u307e\u3059\uff0e<\/p>\n\n\n\n

int(1)<\/p>\n\n\n\n

int(2)<\/p>\n\n\n\n

int(1)<\/p>\n\n\n\n

int(2)<\/p>\n\n\n\n

\u3053\u306e\u5834\u5408\uff0c\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u5909\u6570\u306f\u7d99\u627f\u3055\u308c\u305f\u30af\u30e9\u30b9B\u3067\u306f\u5171\u6709\u3055\u308c\u3066\u3044\u306a\u3044\u306e\u3067\u3059\uff0e\u3053\u306e\u52d5\u4f5c\u306f\uff0c\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u5909\u6570\u306e\u7279\u5fb4\u304b\u3089\u60f3\u5b9a\u3055\u308c\u308b\u901a\u5e38\u306e\u52d5\u4f5c\u3068\u7570\u306a\u3063\u3066\u304a\u308a\uff0c\u308f\u304b\u308a\u306b\u304f\u3044\u3068\u3044\u3046\u8ab2\u984c\u304c\u3042\u308a\u307e\u3057\u305f\uff0ePHP 8.1\u4ee5\u964d\u3067\u306f\u3053\u306e\u52d5\u4f5c\u304c\u4fee\u6b63\u3055\u308c\uff0c\u51fa\u529b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30af\u30e9\u30b9\u5909\u6570\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u305f\u5834\u5408\u3068\u540c\u3058\u306b\u306a\u308a\u307e\u3059\uff0e<\/p>\n\n\n\n

int(1)<\/p>\n\n\n\n

int(2)<\/p>\n\n\n\n

int(3)<\/p>\n\n\n\n

int(4)<\/p>\n\n\n\n

\u3000\u3053\u306e\u5909\u66f4\u306f\u4e0b\u4f4d\u4e92\u63db\u6027\u306b\u5f71\u97ff\u3059\u308b\u305f\u3081\uff0cPHP\u306e\u5f93\u6765\u306e\u52d5\u4f5c\u306b\u4f9d\u5b58\u3057\u305f\u30b3\u30fc\u30c9\u306f\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff0e\u305f\u3060\u3057\uff0cPHP\u306e\u958b\u767a\u8005\u304c\u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u3092\u8abf\u67fb\u3057\u305f\u7d50\u679c\u3067\u306f\uff0c\u3053\u3046\u3057\u305fPHP\u306e\u7279\u6b8a\u306a\u6319\u52d5\u306b\u57fa\u3065\u304f\u30b3\u30fc\u30c9\u306e\u4e8b\u4f8b\u306f\u6975\u3081\u3066\u307e\u308c\u3067\u3042\u308a\uff0c\u307b\u3068\u3093\u3069\u306e\u30b3\u30fc\u30c9\u306f\u5f71\u97ff\u3092\u53d7\u3051\u306a\u3044\u3068\u3044\u308f\u308c\u3066\u3044\u307e\u3059\uff0e<\/p>\n\n\n\n

\u30ea\u30bd\u30fc\u30b9\u578b\u304b\u3089\u30af\u30e9\u30b9\u578b\u3078\u306e\u79fb\u884c<\/h4>\n\n\n\n

PHP\u306b\u304a\u3044\u3066\u306f\uff0c\u30e6\u30fc\u30b6\u304c\u76f4\u63a5\u64cd\u4f5c\u3067\u304d\u306a\u3044\u30ea\u30bd\u30fc\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u547c\u3070\u308c\u308b\u7279\u6b8a\u306a\u578b\u304c\u5b58\u5728\u3057\u307e\u3059\uff0e\u3053\u308c\u306f\uff0c\u4f8b\u3048\u3070\uff0c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30af\u30a8\u30ea\u7d50\u679c\u3084\u30a4\u30e1\u30fc\u30b8\u753b\u50cf\u306e\u30cf\u30f3\u30c9\u30e9\u3068\u304b\u3092\u4fdd\u6301\u3059\u308b\u5909\u6570\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\uff0e\u3053\u306e\u30ea\u30bd\u30fc\u30b9\u578b\u306f\u521d\u671f\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306ePHP\u304b\u3089\u5b58\u5728\u3057\uff0c\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u304c\uff0c\u901a\u5e38\u306e\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u7570\u306a\u308a\uff0c\u578b\u30c1\u30a7\u30c3\u30af\u3084\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u5bfe\u5fdc\u3067\u304d\u305a\uff0c\u307e\u305f\uff0c\u30e6\u30fc\u30b6\u306b\u3088\u308b\u76f4\u63a5\u306e\u64cd\u4f5c\u304c\u3067\u304d\u306a\u3044\u3068\u3044\u3046\u554f\u984c\u304c\u3042\u308a\u307e\u3057\u305f\uff0e\u3053\u306e\u305f\u3081\uff0c\u30ea\u30bd\u30fc\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u306e\u901a\u5e38\u306e\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u3078\u306e\u79fb\u884c\u304c\u6bb5\u968e\u7684\u306b\u884c\u308f\u308c\u3066\u304a\u308a\uff0c\u5c06\u6765\u7684\u306b\u306f\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u306b\u7d71\u5408\u3055\u308c\u308b\u4e88\u5b9a\u3067\u3059\uff0e<\/p>\n\n\n\n

\u3000\u5f93\u6765\u306e\u30ea\u30bd\u30fc\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u3068\u306e\u5f8c\u65b9\u4e92\u63db\u6027\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\uff0c \u30af\u30e9\u30b9\u5b9a\u7fa9\u306b\u304a\u3044\u3066final\u304c\u5ba3\u8a00\u3055\u308c\u3066\u304a\u308a\uff0c\u7d99\u627f\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\uff0e\u307e\u305f\uff0c\u300cnew \u30af\u30e9\u30b9\u540d\u300d\u306e\u3088\u3046\u306b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3082\u8a31\u53ef\u3055\u308c\u3066\u3044\u307e\u305b\u3093\uff0e<\/p>\n\n\n\n

\u3000\u79fb\u884c\u306f\u6bb5\u968e\u7684\u306b\u884c\u308f\u308c\u3066\u304a\u308a\uff0cPHP 8.0\u3067\u306f\u4ee5\u4e0b\u306e\u30ea\u30bd\u30fc\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5909\u63db\u3055\u308c\u3066\u3044\u307e\u3059\uff0e<\/p>\n\n\n\n

cURL, enchant, GD, OpenSSL, shmop, sockets, sysvmsg\/sysvsem\/sysvshm,<\/p>\n\n\n\n

XML, XML-RPC, XMLWriter, zip, zlib<\/p>\n\n\n\n

\u3053\u308c\u306b\u3088\u308a\uff0c\u4f8b\u3048\u3070\uff0c\u524d\u8ff0\u306e\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u306e\u52d5\u4f5c\u304c\u5909\u308f\u3063\u3066\u3044\u307e\u3059\uff0e<\/p>\n\n\n\n

$ch = curl_init('https:\/\/www.yahoo.co.jp');<\/p>\n\n\n\n

PHP 8.0\u3088\u308a\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\uff0c$ch \u306fCurl\u578b\u306e\u30ea\u30bd\u30fc\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3057\u305f\u304c\uff0cPHP 8.0\u4ee5\u964d\u3067\u306fCurlHandle\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u306a\u3063\u3066\u3044\u307e\u3059\uff0e\u3053\u306e\u305f\u3081\uff0cis_resource($ch) \u306e\u3088\u3046\u306b\u30ea\u30fc\u30b9\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3059\u308b\u95a2\u6570\u306b\u3088\u308a\u30cf\u30f3\u30c9\u30eb\u304c\u6b63\u5e38\u306b\u53d6\u5f97\u3067\u304d\u305f\u304b\u3069\u3046\u304b\u78ba\u8a8d\u3059\u308b\u30b3\u30fc\u30c9\u306e\u52d5\u4f5c\u306f\u610f\u56f3\u3057\u306a\u3044\u7d50\u679c\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\uff0ePHP 8.0\u4ee5\u964d\u3067\u6b63\u3057\u304f\u30cf\u30f3\u30c9\u30eb\u304c\u53d6\u5f97\u3067\u304d\u305f\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\uff0c$ch === false \u306e\u3088\u3046\u306b\u8ad6\u7406\u5024\u3068\u306e\u6bd4\u8f03\u3092\u884c\u3046\u3088\u3046\u306b\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff0e<\/p>\n\n\n\n

PHP 8.1\u3067\u306f\uff0c\u4ee5\u4e0b\u306e\u30ea\u30bd\u30fc\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u304c\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u306b\u5909\u66f4\u3055\u308c\u3066\u3044\u307e\u3059\uff0e<\/p>\n\n\n\n

Fileinfo, FTP, PSpell, IMAP, LDAP, PgSQL<\/p>\n\n\n\n

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