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500\u3092\u78ba\u8a8d\u3057\u305f\u6642\u523b\u300d\u3092\u9001\u308c\u3070\u8abf\u67fb\u304c\u65e9\u304f\u306a\u308a\u307e\u3059\u3002\u30d1\u30b9\u30ef\u30fc\u30c9\u3084\u30ed\u30b0\u5168\u6587\u3092\u30e1\u30fc\u30eb\u306b\u8cbc\u3089\u305a\u3001\u6a5f\u5bc6\u60c5\u5831\u3092\u9664\u3044\u305f\u629c\u7c8b\u3092\u5b89\u5168\u306a\u7a93\u53e3\u3067\u5171\u6709\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30d5\u30a9\u30fc\u30e0\u5165\u529b\u3084\u9867\u5ba2\u60c5\u5831\u304c\u30ed\u30b0\u306b\u542b\u307e\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u5148\u306b\u5b89\u5168\u3092\u78ba\u4fdd\u3059\u308b\u5224\u65ad<\/h3>\n<p>\u4eca\u56de\u306e<a href=\"https:\/\/www.php.net\/archive\/2026.php#2026-10-21-5\" target=\"_blank\" rel=\"noopener noreferrer\">PHP\u516c\u5f0f\u767a\u8868<\/a>\u306f\u3001CVE-2026-109618\u3068CVE-2026-109619\u306b\u3064\u3044\u3066\u3001\u4fee\u6b63\u7248\u3078\u306e\u66f4\u65b0\u3060\u3051\u304c\u5b8c\u5168\u306a\u5bfe\u7b56\u3060\u3068\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002PHP 8.5.12\u30018.4.27\u30018.3.36\u30018.2.35\u304c\u516c\u5f0f\u306e\u4fee\u6b63\u7248\u3067\u3059\u3002OS\u3084\u30db\u30b9\u30c8\u304c\u4fee\u6b63\u3092\u30d0\u30c3\u30af\u30dd\u30fc\u30c8\u3059\u308b\u5834\u5408\u306f\u3001\u8868\u793a\u756a\u53f7\u3060\u3051\u3067\u306a\u304f\u3001\u5f53\u8a72CVE\u304c\u4fee\u6b63\u6e08\u307f\u304b\u63d0\u4f9b\u5143\u306b\u7167\u4f1a\u3057\u307e\u3059\u3002<strong>\u65e7\u7248\u306b\u623b\u3059\u3068\u969c\u5bb3\u304c\u6d88\u3048\u3066\u3082\u3001\u8106\u5f31\u6027\u3078\u306e\u5bfe\u5fdc\u304c\u5f8c\u9000\u3057\u5f97\u308b<\/strong>\u305f\u3081\u3001\u672c\u756a\u3092\u5b89\u6613\u306b\u623b\u3057\u3066\u653e\u7f6e\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u58f2\u4e0a\u3084\u7533\u8fbc\u307f\u306b\u76f4\u7d50\u3059\u308b\u6a5f\u80fd\u304c\u505c\u6b62\u3057\u3001\u77ed\u6642\u9593\u3067\u5fa9\u65e7\u3067\u304d\u306a\u3044\u5834\u5408\u3001\u904b\u7528\u8cac\u4efb\u8005\u30fb\u4fdd\u5b88\u62c5\u5f53\u30fb\u30db\u30b9\u30c8\u3068\u76f8\u8ac7\u3057\u3001\u516c\u958b\u7bc4\u56f2\u306e\u4e00\u6642\u5236\u9650\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6848\u5185\u3001\u5f71\u97ff\u6a5f\u80fd\u306e\u505c\u6b62\u3001\u4fee\u6b63\u6e08\u307f\u306e\u5225\u7cfb\u7d71\u3078\u306e\u5207\u66ff\u306a\u3069\u3092\u691c\u8a0e\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u53ef\u7528\u6027\u3068\u5b89\u5168\u6027\u306e\u4e21\u7acb\u3092\u56f3\u308b\u5224\u65ad\u3067\u3001\u5358\u72ec\u62c5\u5f53\u8005\u304c\u300c\u65e7\u7248\u306a\u3089\u8868\u793a\u3055\u308c\u308b\u300d\u3068\u5224\u65ad\u3057\u3066\u6052\u4e45\u7684\u306b\u623b\u3059\u5834\u9762\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8106\u5f31\u306a\u7248\u3067\u306e\u516c\u958b\u3092\u7d9a\u3051\u308b\u3088\u308a\u3001\u4e00\u6642\u7684\u306b\u516c\u958b\u3092\u7d5e\u308b\u307b\u3046\u304c\u5b89\u5168\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6700\u521d\u306e\u89b3\u6e2c<\/th>\n<th>\u512a\u5148\u3059\u308b\u78ba\u8a8d<\/th>\n<th>\u6b21\u306e\u62c5\u5f53<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5168URL\u3068\u7ba1\u7406\u753b\u9762\u304c500<\/td>\n<td>PHP\u30fbWeb\u30b5\u30fc\u30d0\u30fc\u30fb\u62e1\u5f35\u306e\u30a8\u30e9\u30fc\u30ed\u30b0<\/td>\n<td>\u30db\u30b9\u30c8\uff0f\u30a4\u30f3\u30d5\u30e9\u62c5\u5f53<\/td>\n<\/tr>\n<tr>\n<td>\u7279\u5b9a\u30da\u30fc\u30b8\u3060\u3051500<\/td>\n<td>\u8a72\u5f53\u6a5f\u80fd\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u30fb\u30c6\u30fc\u30de\u30fb\u72ec\u81ea\u30b3\u30fc\u30c9<\/td>\n<td>WordPress\u4fdd\u5b88\u62c5\u5f53<\/td>\n<\/tr>\n<tr>\n<td>\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u6642\u3060\u3051\u5931\u6557<\/td>\n<td>\u9001\u4fe1\u51e6\u7406\u3001\u5916\u90e8API\u3001PHP\u62e1\u5f35\u3001\u30ed\u30b0<\/td>\n<td>\u6a5f\u80fd\u62c5\u5f53\u3068\u30db\u30b9\u30c8<\/td>\n<\/tr>\n<tr>\n<td>\u753b\u9762\u306f\u51fa\u308b\u304c\u7ba1\u7406\u753b\u9762\u3060\u3051\u505c\u6b62<\/td>\n<td>\u7ba1\u7406\u753b\u9762\u9650\u5b9a\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3068\u6a29\u9650<\/td>\n<td>WordPress\u4fdd\u5b88\u62c5\u5f53<\/td>\n<\/tr>\n<tr>\n<td>\u65ad\u7d9a\u7684\u306a500<\/td>\n<td>PHP\u30ef\u30fc\u30ab\u30fc\u30fb\u30e1\u30e2\u30ea\u30fb\u6642\u9593\u5e2f\u30fb\u8ca0\u8377<\/td>\n<td>\u30db\u30b9\u30c8\uff0f\u30a4\u30f3\u30d5\u30e9\u62c5\u5f53<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u30ed\u30b0\u3068\u30b5\u30a4\u30c8\u30d8\u30eb\u30b9\u3067\u539f\u56e0\u306e\u5c64\u3092\u78ba\u5b9a\u3059\u308b<\/h2>\n<figure class=\"wp-block-image size-full\"><img src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/section-02-13.webp\" alt=\"\u30ed\u30b0\u3068\u30b5\u30a4\u30c8\u30d8\u30eb\u30b9\u3067\u539f\u56e0\u306e\u5c64\u3092\u78ba\u5b9a\u3059\u308b\u306e\u56f3\u89e3\" loading=\"lazy\" decoding=\"async\" \/><\/figure>\n<p>\u969c\u5bb3\u306e\u4fee\u6b63\u306f\u30ed\u30b0\u304b\u3089\u59cb\u3081\u307e\u3059\u3002WordPress\u306e\u753b\u9762\u3060\u3051\u3067\u300cPHP 8\u306b\u975e\u5bfe\u5fdc\u300d\u3068\u6c7a\u3081\u308b\u306e\u306f\u5371\u967a\u3067\u3059\u3002PHP\u5207\u66ff\u5f8c\u306e500\u3067\u3042\u3063\u3066\u3082\u3001\u30ed\u30b0\u306b\u51fa\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u62e1\u5f35\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u8aad\u307f\u8fbc\u307f\u5931\u6557\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u95a2\u6570\u672a\u5b9a\u7fa9\u3001\u30c6\u30fc\u30de\u306e\u69cb\u6587\u30a8\u30e9\u30fc\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u5931\u6557\u3067\u306f\u3001\u76f4\u3059\u5834\u6240\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u306e\u30a8\u30e9\u30fc\u30ed\u30b0\u3001PHP\u30ed\u30b0\u3001WordPress\u306e\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u3092\u6642\u523b\u9806\u306b\u898b\u3066\u3001<strong>\u6700\u521d\u306e\u81f4\u547d\u7684\u30a8\u30e9\u30fc<\/strong>\u3092\u63a2\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5f8c\u7d9a\u306e\u8b66\u544a\u3060\u3051\u3092\u4fee\u6b63\u3057\u3066\u3082\u505c\u6b62\u306f\u6d88\u3048\u307e\u305b\u3093\u3002<\/p>\n<h3>\u30ed\u30b0\u304c\u8aad\u3081\u308b\u74b0\u5883\u306a\u3089\u3001\u516c\u958b\u753b\u9762\u306b\u30a8\u30e9\u30fc\u3092\u51fa\u3055\u305a\u8a18\u9332\u3059\u308b<\/h3>\n<p>WordPress\u516c\u5f0f\u306e<a href=\"https:\/\/developer.wordpress.org\/advanced-administration\/debug\/debug-wordpress\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30c7\u30d0\u30c3\u30b0\u624b\u9806<\/a>\u3067\u306f\u3001\u691c\u8a3c\u7528\u74b0\u5883\u3067<code>WP_DEBUG<\/code>\u3068<code>WP_DEBUG_LOG<\/code>\u3092\u6709\u52b9\u306b\u3057\u3001<code>WP_DEBUG_DISPLAY<\/code>\u3092\u7121\u52b9\u306b\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u672c\u756a\u30b5\u30a4\u30c8\u3067\u306e\u5e38\u7528\u306f\u63a8\u5968\u3055\u308c\u307e\u305b\u3093\u3002\u539f\u56e0\u8abf\u67fb\u306e\u305f\u3081\u306b\u4e00\u6642\u7684\u306b\u4f7f\u3046\u306a\u3089\u3001\u4f5c\u696d\u6642\u9593\u3092\u9650\u5b9a\u3057\u3001\u30ed\u30b0\u306e\u4fdd\u5b58\u5148\u304c\u516c\u958b\u9818\u57df\u306b\u9732\u51fa\u3057\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3001\u8abf\u67fb\u5f8c\u306f\u8a2d\u5b9a\u3092\u623b\u3057\u307e\u3059\u3002<code>wp-content\/debug.log<\/code>\u306b\u306f\u30d1\u30b9\u3084\u5165\u529b\u60c5\u5831\u304c\u8a18\u9332\u3055\u308c\u5f97\u307e\u3059\u3002\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3068\u30a2\u30af\u30bb\u30b9\u5236\u9650\u3092\u5148\u306b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u3059\u3067\u306b\u30b5\u30fc\u30d0\u30fc\u304c\u72ec\u81ea\u306e\u30a8\u30e9\u30fc\u30ed\u30b0\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308c\u3070\u3001\u307e\u305a\u305d\u308c\u3092\u898b\u307e\u3059\u3002WordPress\u304c\u8d77\u52d5\u3059\u308b\u524d\u306e\u81f4\u547d\u7684\u30a8\u30e9\u30fc\u3084PHP\u62e1\u5f35\u306e\u30ed\u30fc\u30c9\u5931\u6557\u306f\u3001WordPress\u306e\u30ed\u30b0\u3078\u5c4a\u304b\u306a\u3044\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002\u30db\u30b9\u30c8\u306e\u7ba1\u7406\u753b\u9762\u3067\u300cPHP\u30a8\u30e9\u30fc\u30ed\u30b0\u300d\u300cWeb\u30b5\u30fc\u30d0\u30fc\u306e\u30a8\u30e9\u30fc\u30ed\u30b0\u300d\u306e\u540d\u79f0\u3092\u63a2\u3057\u3001\u5207\u66ff\u76f4\u5f8c\u306e\u6642\u523b\u3067\u7d5e\u308a\u307e\u3059\u3002\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u3067500\u306eURL\u3068\u6642\u523b\u3092\u78ba\u8a8d\u3057\u3001\u305d\u306e\u524d\u5f8c\u3092\u30a8\u30e9\u30fc\u30ed\u30b0\u3068\u7167\u5408\u3057\u307e\u3059\u3002\u30ed\u30b0\u304c\u306a\u3044\u3053\u3068\u3092\u300c\u30a8\u30e9\u30fc\u304c\u306a\u3044\u300d\u3068\u89e3\u91c8\u305b\u305a\u3001\u8a18\u9332\u5148\u3084\u4fdd\u5b58\u671f\u9593\u3082\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u300c\u7a2e\u985e\u300d\u3068\u300c\u6700\u521d\u306e\u767a\u751f\u5143\u300d\u3067\u8aad\u3080<\/h3>\n<p><code>Uncaught Error<\/code>\u3084<code>Fatal error<\/code>\u306f\u51e6\u7406\u505c\u6b62\u3092\u793a\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u3068\u884c\u756a\u53f7\u304c\u767a\u751f\u6e90\u306e\u624b\u639b\u304b\u308a\u3067\u3059\u3002<code>Call to undefined function<\/code>\u306a\u3089\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u547c\u3076\u95a2\u6570\u306e\u63d0\u4f9b\u5143\u3001\u5fc5\u8981\u306aPHP\u62e1\u5f35\u3001\u8aad\u307f\u8fbc\u307f\u9806\u5e8f\u306a\u3069\u3092\u78ba\u304b\u3081\u307e\u3059\u3002<code>Class not found<\/code>\u306a\u3089\u3001\u30aa\u30fc\u30c8\u30ed\u30fc\u30c9\u3084\u4f9d\u5b58\u30d7\u30e9\u30b0\u30a4\u30f3\u3001\u66f4\u65b0\u9014\u4e2d\u306e\u30d5\u30a1\u30a4\u30eb\u6b20\u843d\u3092\u8abf\u3079\u307e\u3059\u3002<code>Parse error<\/code>\u306a\u3089\u69cb\u6587\u304c\u5bfe\u8c61PHP\u3067\u89e3\u91c8\u3067\u304d\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<code>Allowed memory size exhausted<\/code>\u306f\u30e1\u30e2\u30ea\u4e0d\u8db3\u306e\u5146\u5019\u3067\u3059\u304c\u3001\u4e0a\u9650\u3092\u7121\u5236\u9650\u306b\u4e0a\u3052\u308b\u524d\u306b\u3001\u7121\u9650\u30eb\u30fc\u30d7\u3084\u7570\u5e38\u306a\u30d7\u30e9\u30b0\u30a4\u30f3\u51e6\u7406\u3092\u5207\u308a\u5206\u3051\u307e\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3001<code>Deprecated<\/code>\u3084<code>Warning<\/code>\u306f\u76f4\u3059\u3079\u304d\u4e92\u63db\u6027\u306e\u5146\u5019\u3067\u3082\u3001\u5fc5\u305a\u3057\u3082500\u306e\u76f4\u63a5\u539f\u56e0\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6700\u521d\u306e\u81f4\u547d\u7684\u30a8\u30e9\u30fc\u3088\u308a\u5f8c\u306b\u5927\u91cf\u306e\u8b66\u544a\u304c\u51fa\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u753b\u9762\u306b\u8b66\u544a\u304c\u898b\u3048\u308b\u304b\u3089\u3068\u3044\u3063\u3066\u3001\u81f4\u547d\u7684\u30a8\u30e9\u30fc\u3068\u6df7\u540c\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u767a\u751f\u6642\u523b\u3001\u5bfe\u8c61URL\u3001\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u3001\u76f4\u524d\u306e\u5909\u66f4\u3001\u518d\u73fe\u6761\u4ef6\u3092\u4e00\u7dd2\u306b\u898b\u307e\u3059\u3002\u30ed\u30b0\u306e\u65ad\u7247\u3092\u691c\u7d22\u3059\u308b\u5834\u5408\u306f\u9867\u5ba2\u60c5\u5831\u3084\u79d8\u5bc6\u9375\u3092\u516c\u958b\u306e\u691c\u7d22\u30b5\u30fc\u30d3\u30b9\u3078\u8cbc\u3089\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u30b5\u30a4\u30c8\u30d8\u30eb\u30b9\u304c\u958b\u304f\u306a\u3089\u3001\u5b9f\u884c\u4e2d\u306ePHP\u7248\u3092\u63a7\u3048\u308b<\/h3>\n<p>WordPress\u306e\u516c\u5f0f\u6848\u5185\u306f\u3001\u7ba1\u7406\u753b\u9762\u306e\u300c\u30c4\u30fc\u30eb \u2192 \u30b5\u30a4\u30c8\u30d8\u30eb\u30b9 \u2192 \u60c5\u5831 \u2192 \u30b5\u30fc\u30d0\u30fc\u300d\u3067\u5b9f\u884c\u4e2d\u306ePHP\u7248\u3092\u78ba\u8a8d\u3067\u304d\u308b\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u30db\u30b9\u30c8\u306e\u7ba1\u7406\u753b\u9762\u306e\u9078\u629e\u5024\u3068\u30b5\u30a4\u30c8\u30d8\u30eb\u30b9\u306e\u8868\u793a\u304c\u7570\u306a\u308b\u5834\u5408\u306f\u3001\u8a2d\u5b9a\u306e\u53cd\u6620\u5f85\u3061\u3001\u30c9\u30e1\u30a4\u30f3\u3054\u3068\u306e\u8a2d\u5b9a\u5dee\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3001\u5225\u30b5\u30fc\u30d0\u30fc\u3001PHP\u30ef\u30fc\u30ab\u30fc\u306e\u518d\u8d77\u52d5\u306a\u3069\u3092\u30db\u30b9\u30c8\u3078\u78ba\u8a8d\u3057\u307e\u3059\u3002\u30b5\u30a4\u30c8\u30d8\u30eb\u30b9\u304c\u958b\u304b\u306a\u3051\u308c\u3070\u3001\u7248\u306e\u78ba\u8a8d\u3092\u7121\u7406\u306b\u7d9a\u3051\u305a\u30db\u30b9\u30c8\u306e\u8a2d\u5b9a\u30fb\u30ed\u30b0\u306b\u9032\u307f\u307e\u3059\u3002\u78ba\u8a8d\u7528\u306e<code>phpinfo()<\/code>\u30d5\u30a1\u30a4\u30eb\u3092\u516c\u958b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u7f6e\u304d\u3063\u3071\u306a\u3057\u306b\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u8907\u6570\u30b5\u30a4\u30c8\u3092\u540c\u3058\u5951\u7d04\u306b\u7f6e\u304f\u5834\u5408\u306f\u3001\u300c\u5225\u30b5\u30a4\u30c8\u306f\u52d5\u304f\u300d\u3068\u3044\u3046\u4e8b\u5b9f\u3082\u624b\u639b\u304b\u308a\u306b\u306a\u308a\u307e\u3059\u3002\u540c\u3058PHP\u7248\u3068\u540c\u3058\u30b5\u30fc\u30d0\u30fc\u3067\u5225\u30b5\u30a4\u30c8\u3060\u3051\u58ca\u308c\u308b\u306a\u3089\u3001\u30b5\u30a4\u30c8\u56fa\u6709\u306e\u30b3\u30fc\u30c9\u3084\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u7591\u308f\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u30b5\u30a4\u30c8\u3054\u3068\u306bPHP\u8a2d\u5b9a\u3084\u62e1\u5f35\u304c\u7570\u306a\u308b\u3053\u3068\u3082\u3042\u308a\u3001\u540c\u5c45\u30b5\u30a4\u30c8\u306e\u6210\u529f\u3060\u3051\u3067\u30b5\u30fc\u30d0\u30fc\u5168\u4f53\u306e\u5b89\u5168\u3092\u4fdd\u8a3c\u3067\u304d\u307e\u305b\u3093\u3002\u6bd4\u8f03\u6761\u4ef6\u3092\u8a18\u9332\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u30ed\u30b0\u306e\u60c5\u5831\u3092\u30c1\u30fc\u30e0\u3067\u5171\u6709\u3059\u308b\u3068\u304d\u306f\u3001\u539f\u56e0\u306e\u300c\u78ba\u5b9a\u300d\u3068\u300c\u63a8\u6e2c\u300d\u3092\u5206\u3051\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u300c15\u664202\u5206\u306b\u6c7a\u6e08\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30d5\u30a1\u30a4\u30eb\u3067Fatal error\u300d\u306f\u89b3\u6e2c\u4e8b\u5b9f\u3001\u300cPHP 8.4\u3068\u306e\u4e92\u63db\u6027\u304c\u539f\u56e0\u300d\u306f\u305d\u306e\u6bb5\u968e\u3067\u306f\u4eee\u8aac\u3067\u3059\u3002\u30a8\u30e9\u30fc\u304c\u51fa\u305f\u5834\u6240\u306f\u3001\u547c\u3073\u51fa\u3057\u5143\u3084\u4f9d\u5b58\u3059\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u5f71\u97ff\u3092\u53d7\u3051\u307e\u3059\u3002\u4eee\u8aac\u306e\u307e\u307e\u9867\u5ba2\u5411\u3051\u306b\u539f\u56e0\u3092\u65ad\u5b9a\u3059\u308b\u3068\u3001\u5f8c\u3067\u8a02\u6b63\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u4e00\u6b21\u5bfe\u5fdc\u306e\u5831\u544a\u306f\u300c\u5f71\u97ff\u300d\u300c\u5206\u304b\u3063\u3066\u3044\u308b\u4e8b\u5b9f\u300d\u300c\u672a\u78ba\u8a8d\u300d\u300c\u6b21\u306e\u78ba\u8a8d\u6642\u523b\u300d\u306e\u56db\u3064\u306b\u5206\u3051\u308b\u3068\u3001\u4e0d\u8981\u306a\u61b6\u6e2c\u3092\u6e1b\u3089\u305b\u307e\u3059\u3002<\/p>\n<p>\u30b5\u30fc\u30d0\u30fc\u306e\u6642\u523b\u3068\u62c5\u5f53\u8005\u306e\u7aef\u672b\u306e\u6642\u523b\u304c\u7570\u306a\u308b\u3053\u3068\u306b\u3082\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30ed\u30b0\u304cUTC\u3001\u7ba1\u7406\u753b\u9762\u304c\u65e5\u672c\u6642\u9593\u3068\u3044\u3046\u7d44\u307f\u5408\u308f\u305b\u3067\u306f\u3001\u540c\u3058\u969c\u5bb3\u3092\u4e5d\u6642\u9593\u305a\u308c\u3066\u8ffd\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u30c1\u30b1\u30c3\u30c8\u306b\u306f\u5fc5\u305a\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u6dfb\u3048\u3001PHP\u5207\u66ff\u64cd\u4f5c\u3001\u6700\u521d\u306e500\u3001\u30db\u30b9\u30c8\u306e\u518d\u8d77\u52d5\u3001\u4fee\u6b63\u9069\u7528\u306e\u5404\u6642\u523b\u3092\u4e26\u3079\u307e\u3059\u3002\u8907\u6570\u62c5\u5f53\u8005\u304c\u540c\u6642\u306b\u672c\u756a\u3092\u89e6\u3063\u3066\u3044\u308b\u306a\u3089\u3001\u305d\u306e\u9593\u306f\u5909\u66f4\u3092\u6b62\u3081\u3001\u4f5c\u696d\u306e\u6240\u6709\u8005\u3092\u4e00\u4eba\u6c7a\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2>\u30d7\u30e9\u30b0\u30a4\u30f3\u30fb\u30c6\u30fc\u30de\u30fbPHP\u62e1\u5f35\u3092\u5b89\u5168\u306b\u5207\u308a\u5206\u3051\u308b<\/h2>\n<figure class=\"wp-block-image size-full\"><img src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/section-03-13.webp\" alt=\"\u30d7\u30e9\u30b0\u30a4\u30f3\u30fb\u30c6\u30fc\u30de\u30fbPHP\u62e1\u5f35\u3092\u5b89\u5168\u306b\u5207\u308a\u5206\u3051\u308b\u306e\u56f3\u89e3\" loading=\"lazy\" decoding=\"async\" \/><\/figure>\n<p>\u30ed\u30b0\u304c\u7279\u5b9a\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u793a\u3059\u5834\u5408\u3001\u6700\u521d\u306b\u305d\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u516c\u5f0f\u66f4\u65b0\u60c5\u5831\u3068\u5229\u7528\u4e2d\u306e\u7248\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u300c\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u5168\u505c\u6b62\u3059\u308c\u3070\u5fa9\u65e7\u3059\u308b\u300d\u306f\u4e8b\u5b9f\u3068\u3057\u3066\u5f79\u7acb\u3061\u307e\u3059\u304c\u3001\u6c7a\u6e08\u30fb\u4f1a\u54e1\u7ba1\u7406\u30fb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a\u3092\u307e\u3068\u3081\u3066\u6b62\u3081\u308b\u3068\u5225\u306e\u969c\u5bb3\u3084\u9732\u51fa\u3092\u4f5c\u308a\u5f97\u307e\u3059\u3002<strong>\u539f\u56e0\u5019\u88dc\u3092\u4e00\u3064\u305a\u3064\u3001\u5f71\u97ff\u3092\u898b\u306a\u304c\u3089\u5207\u308a\u5206\u3051\u308b<\/strong>\u3053\u3068\u304c\u539f\u5247\u3067\u3059\u3002\u4f5c\u696d\u524d\u306b\u30d5\u30a1\u30a4\u30eb\u3068DB\u306e\u5fa9\u5143\u53ef\u80fd\u306a\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u5909\u66f4\u6642\u523b\u3001\u62c5\u5f53\u8005\u3001\u5143\u306e\u6709\u52b9\u72b6\u614b\u3092\u6b8b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u7ba1\u7406\u753b\u9762\u304c\u958b\u3051\u308b\u5834\u5408<\/h3>\n<p>\u7ba1\u7406\u753b\u9762\u3067\u5bfe\u8c61\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u66f4\u65b0\u3092\u78ba\u8a8d\u3057\u3001\u516c\u958b\u524d\u306b\u540c\u3058\u6761\u4ef6\u306e\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u3067\u8a66\u3057\u307e\u3059\u3002\u30a8\u30e9\u30fc\u304c\u7279\u5b9a\u64cd\u4f5c\u3060\u3051\u3067\u51fa\u308b\u306a\u3089\u3001\u5bfe\u8c61\u6a5f\u80fd\u306e\u8a2d\u5b9a\u3084\u4f9d\u5b58\u30b5\u30fc\u30d3\u30b9\u3082\u78ba\u304b\u3081\u307e\u3059\u3002\u505c\u6b62\u304c\u8a31\u3055\u308c\u308b\u30d7\u30e9\u30b0\u30a4\u30f3\u306a\u3089\u3001\u4e00\u6642\u7121\u52b9\u5316\u3057\u3066\u540c\u3058URL\u3068\u64cd\u4f5c\u3092\u518d\u73fe\u3057\u3001500\u304c\u6d88\u3048\u308b\u304b\u3092\u898b\u307e\u3059\u3002\u6d88\u3048\u305f\u5834\u5408\u3082\u5373\u524a\u9664\u305b\u305a\u3001\u63d0\u4f9b\u5143\u306e\u4e92\u63db\u6027\u60c5\u5831\u30fb\u4fee\u6b63\u7248\u30fb\u4ee3\u66ff\u7b56\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u6d88\u3048\u306a\u3051\u308c\u3070\u5143\u306e\u72b6\u614b\u3078\u623b\u3057\u3001\u6b21\u306e\u5019\u88dc\u3078\u9032\u307f\u307e\u3059\u3002\u5404\u64cd\u4f5c\u3092\u4e00\u56de\u305a\u3064\u884c\u3044\u3001\u540c\u6642\u306b\u8907\u6570\u306e\u8a2d\u5b9a\u3092\u5909\u3048\u306a\u3044\u3053\u3068\u304c\u539f\u56e0\u7279\u5b9a\u3092\u65e9\u3081\u307e\u3059\u3002<\/p>\n<p>\u30b5\u30a4\u30c8\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3084CDN\u304c\u53e4\u3044\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u3092\u8fd4\u3057\u3066\u3044\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u6b62\u3081\u305f\u306e\u306b\u8868\u793a\u304c\u5909\u308f\u3089\u306a\u3044\u3068\u304d\u306f\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u30d8\u30c3\u30c0\u30fc\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6709\u7121\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4e00\u62ec\u524a\u9664\u3059\u308b\u524d\u306b\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u5897\u3084\u91cd\u8981\u30da\u30fc\u30b8\u3078\u306e\u5f71\u97ff\u3092\u8003\u3048\u307e\u3059\u3002\u691c\u8a3cURL\u306f\u540c\u3058\u3082\u306e\u3092\u4f7f\u3044\u3001\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30a6\u30a3\u30f3\u30c9\u30a6\u3060\u3051\u306b\u983c\u3089\u305a\u3001\u5fdc\u7b54\u30b3\u30fc\u30c9\u3068\u30ed\u30b0\u6642\u523b\u3082\u7167\u5408\u3057\u307e\u3059\u3002<\/p>\n<h3>\u7ba1\u7406\u753b\u9762\u306b\u5165\u308c\u306a\u3044\u5834\u5408\u3068\u30ea\u30ab\u30d0\u30ea\u30fc\u30e2\u30fc\u30c9<\/h3>\n<p>WordPress\u306b\u306f\u81f4\u547d\u7684\u30a8\u30e9\u30fc\u6642\u306e\u30ea\u30ab\u30d0\u30ea\u30fc\u30e2\u30fc\u30c9\u304c\u3042\u308a\u3001\u7ba1\u7406\u8005\u30e1\u30fc\u30eb\u306b\u6848\u5185\u304c\u5c4a\u304f\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u516c\u5f0f\u306e<a href=\"https:\/\/developer.wordpress.org\/advanced-administration\/wordpress\/common-errors\/\" target=\"_blank\" rel=\"noopener 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denied<\/code>\u3084\u30d5\u30a1\u30a4\u30eb\u4e0d\u5b58\u5728\u304c\u3042\u308c\u3070\u3001PHP\u7248\u5909\u66f4\u3068\u540c\u6642\u306b\u5b9f\u884c\u30e6\u30fc\u30b6\u30fc\u3084\u30bd\u30b1\u30c3\u30c8\u30d1\u30b9\u304c\u5909\u308f\u3063\u3066\u3044\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u30c6\u30fc\u30de\u306e\u4e92\u63db\u6027\u3060\u3051\u3067\u306f\u8aac\u660e\u3067\u304d\u307e\u305b\u3093\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30a8\u30e9\u30fc\u3067\u3042\u308c\u3070\u3001\u63a5\u7d9a\u5148\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u8a8d\u8a3c\u3001\u62e1\u5f35\u3092\u5206\u3051\u3066\u898b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<strong>\u30ed\u30b0\u306e\u5148\u982d\u306b\u3042\u308b\u767a\u751f\u5143\u3068\u3001\u5b9f\u969b\u306b\u76f4\u3059\u62c5\u5f53\u304c\u540c\u3058\u3068\u306f\u9650\u3089\u306a\u3044<\/strong>\u3053\u3068\u3092\u610f\u8b58\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2>\u4fee\u6b63\u7248PHP\u306e\u307e\u307e\u5fa9\u65e7\u3059\u308b\u5b9f\u52d9\u30d5\u30ed\u30fc<\/h2>\n<figure class=\"wp-block-image size-full\"><img src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/section-04-9.webp\" alt=\"\u4fee\u6b63\u7248PHP\u306e\u307e\u307e\u5fa9\u65e7\u3059\u308b\u5b9f\u52d9\u30d5\u30ed\u30fc\u306e\u56f3\u89e3\" loading=\"lazy\" decoding=\"async\" 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6e0\u3092\u8ffd\u3044\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>90\u5206\u4ee5\u964d\uff1a\u4e3b\u8981\u5c0e\u7dda\u3092\u691c\u8a3c\u3057\u3066\u304b\u3089\u5fa9\u65e7\u5ba3\u8a00\u3059\u308b<\/h3>\n<p>\u30c8\u30c3\u30d7\u30da\u30fc\u30b8\u3001\u691c\u7d22\u6d41\u5165\u304c\u591a\u3044\u30da\u30fc\u30b8\u3001\u7ba1\u7406\u753b\u9762\u3001\u30ed\u30b0\u30a4\u30f3\u3001\u554f\u3044\u5408\u308f\u305b\u3001\u4f1a\u54e1\u767b\u9332\u3001\u4e88\u7d04\u30fb\u6c7a\u6e08\u3001\u901a\u77e5\u30e1\u30fc\u30eb\u3001\u5916\u90e8\u9023\u643a\u3092\u30b5\u30a4\u30c8\u306e\u5b9f\u614b\u306b\u5408\u308f\u305b\u3066\u78ba\u8a8d\u3057\u307e\u3059\u3002\u95b2\u89a7\u3067\u304d\u305f\u3053\u3068\u3068\u9001\u4fe1\u30fb\u8cfc\u5165\u304c\u5b8c\u4e86\u3057\u305f\u3053\u3068\u306f\u5225\u3067\u3059\u3002\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u3092\u4f7f\u3044\u3001\u5b9f\u969b\u306e\u9867\u5ba2\u3078\u91cd\u8907\u901a\u77e5\u3084\u6c7a\u6e08\u3092\u767a\u751f\u3055\u305b\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u30a8\u30e9\u30fc\u30ed\u30b0\u306e\u65b0\u898f\u767a\u751f\u3082\u518d\u78ba\u8a8d\u3057\u3001\u6570\u5206\u9593\u306e\u6210\u529f\u3060\u3051\u3067\u7d42\u3048\u305a\u3001\u901a\u5e38\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3067\u306e\u76e3\u8996\u3092\u7d99\u7d9a\u3057\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6bb5\u968e<\/th>\n<th>\u62c5\u5f53\u3068\u5165\u529b<\/th>\n<th>\u5b8c\u4e86\u6761\u4ef6<\/th>\n<th>\u5931\u6557\u6642\u306e\u623b\u3057\u65b9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u4e8b\u5b9f\u56fa\u5b9a<\/td>\n<td>\u904b\u7528\u62c5\u5f53\uff0f\u6642\u523b\u30fbURL\u30fb\u7248\u30fb\u30ed\u30b0<\/td>\n<td>\u5f71\u97ff\u7bc4\u56f2\u3068\u62c5\u5f53\u3092\u8a18\u9332<\/td>\n<td>\u516c\u958b\u7bc4\u56f2\u3092\u5236\u9650\u3057\u30db\u30b9\u30c8\u3078\u9023\u7d61<\/td>\n<\/tr>\n<tr>\n<td>\u539f\u56e0\u7279\u5b9a<\/td>\n<td>\u4fdd\u5b88\u62c5\u5f53\uff0f\u6700\u521d\u306e\u81f4\u547d\u7684\u30a8\u30e9\u30fc<\/td>\n<td>\u518d\u73fe\u6761\u4ef6\u3068\u539f\u56e0\u5019\u88dc\u304c\u4e00\u81f4<\/td>\n<td>\u8a2d\u5b9a\u3092\u5143\u3078\u623b\u3057\u5225\u5019\u88dc\u3092\u8abf\u67fb<\/td>\n<\/tr>\n<tr>\n<td>\u6700\u5c0f\u4fee\u6b63<\/td>\n<td>\u958b\u767a\u62c5\u5f53\uff0f\u4fee\u6b63\u7248\u30fb\u4e92\u63db\u60c5\u5831<\/td>\n<td>\u4fee\u6b63\u6e08\u307fPHP\u3067\u5bfe\u8c61\u64cd\u4f5c\u304c\u6210\u529f<\/td>\n<td>\u5909\u66f4\u5358\u4f4d\u3092\u623b\u3057\u4ee3\u66ff\u624b\u6bb5\u3078<\/td>\n<\/tr>\n<tr>\n<td>\u516c\u958b\u78ba\u8a8d<\/td>\n<td>\u904b\u7528\u8cac\u4efb\u8005\uff0f\u4e3b\u8981\u5c0e\u7dda\u306e\u7d50\u679c<\/td>\n<td>HTTP\u5fdc\u7b54\u30fb\u6a5f\u80fd\u30fb\u30ed\u30b0\u304c\u6b63\u5e38<\/td>\n<td>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3078\u623b\u3057\u518d\u8abf\u67fb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3053\u306e\u6642\u9593\u914d\u5206\u306f\u76ee\u5b89\u3067\u3059\u3002\u5927\u898f\u6a21EC\u3084\u4f1a\u54e1\u30b5\u30a4\u30c8\u3067\u306f\u627f\u8a8d\u3068\u691c\u8a3c\u306b\u9577\u304f\u639b\u304b\u308a\u307e\u3059\u3002\u5fa9\u65e7\u3092\u6025\u3050\u305f\u3081\u306b\u6a29\u9650\u306e\u306a\u3044\u62c5\u5f53\u8005\u304c\u672c\u756a\u30b5\u30fc\u30d0\u30fc\u3092\u76f4\u63a5\u7de8\u96c6\u3059\u308b\u3088\u308a\u3001\u5909\u66f4\u306e\u8cac\u4efb\u8005\u3092\u6c7a\u3081\u3066\u5b89\u5168\u306a\u624b\u9806\u3092\u5b88\u308b\u307b\u3046\u304c\u7d50\u679c\u7684\u306b\u65e9\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5fa9\u65e7\u6642\u306e\u30c1\u30a7\u30c3\u30af\u9805\u76ee\u306f\u3001\u30b5\u30a4\u30c8\u306e\u53ce\u76ca\u3084\u5229\u7528\u8005\u306e\u884c\u52d5\u3067\u512a\u5148\u9806\u4f4d\u3092\u4ed8\u3051\u307e\u3059\u3002\u60c5\u5831\u30b5\u30a4\u30c8\u306a\u3089\u8a18\u4e8b\u672c\u6587\u3001\u691c\u7d22\u3001\u95a2\u9023\u8a18\u4e8b\u3001\u554f\u3044\u5408\u308f\u305b\u3001\u30b5\u30a4\u30c8\u30de\u30c3\u30d7\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002EC\u306a\u3089\u5546\u54c1\u95b2\u89a7\u3060\u3051\u3067\u306a\u304f\u3001\u30ab\u30fc\u30c8\u3001\u9001\u6599\u8a08\u7b97\u3001\u6c7a\u6e08\u5b8c\u4e86\u3001\u30e1\u30fc\u30eb\u901a\u77e5\u3001\u6ce8\u6587\u7ba1\u7406\u753b\u9762\u307e\u3067\u4e00\u9023\u306e\u6d41\u308c\u3092\u8a66\u3057\u307e\u3059\u3002\u4e88\u7d04\u30b5\u30a4\u30c8\u306a\u3089\u7a7a\u304d\u72b6\u6cc1\u306e\u8868\u793a\u3001\u4eee\u62bc\u3055\u3048\u3001\u78ba\u8a8d\u30e1\u30fc\u30eb\u3001\u30ad\u30e3\u30f3\u30bb\u30eb\u3092\u8a66\u3057\u307e\u3059\u3002\u5916\u90e8API\u9023\u643a\u306f\u753b\u9762\u4e0a\u306e\u6210\u529f\u8868\u793a\u3060\u3051\u3067\u306a\u304f\u3001\u76f8\u624b\u5074\u3078\u6b63\u3057\u3044\u30c7\u30fc\u30bf\u304c\u5c4a\u3044\u305f\u304b\u78ba\u8a8d\u3057\u307e\u3059\u3002\u5229\u7528\u8005\u306e\u5b9f\u30c7\u30fc\u30bf\u3092\u4f7f\u308f\u306a\u3044\u30c6\u30b9\u30c8\u624b\u9806\u3092\u4e8b\u524d\u306b\u6c7a\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u969c\u5bb3\u76f4\u5f8c\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u53e4\u3044\u30da\u30fc\u30b8\u3092\u8fd4\u3057\u3001\u62c5\u5f53\u8005\u3060\u3051\u6b63\u5e38\u306b\u898b\u3048\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u516c\u958b\u30da\u30fc\u30b8\u306eHTTP\u5fdc\u7b54\u3001\u5225\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u306e\u95b2\u89a7\u3001\u30ed\u30b0\u30a4\u30f3\u3057\u3066\u3044\u306a\u3044\u72b6\u614b\u306e\u8868\u793a\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u4e00\u65b9\u3067\u3001\u77ed\u6642\u9593\u306b\u4f55\u5ea6\u3082\u5927\u91cf\u306e\u78ba\u8a8d\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u6295\u3052\u308b\u3068\u3001\u5fa9\u65e7\u4e2d\u306e\u30b5\u30fc\u30d0\u30fc\u3078\u8ca0\u8377\u3092\u639b\u3051\u307e\u3059\u3002\u691c\u8a3c\u5bfe\u8c61\u3092\u4ee3\u8868\u7684\u306aURL\u3078\u7d5e\u308a\u3001\u30db\u30b9\u30c8\u306e\u76e3\u8996\u3092\u898b\u306a\u304c\u3089\u5b9f\u65bd\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8a18\u9332\u306f\u300cURL\u30fb\u64cd\u4f5c\u30fb\u671f\u5f85\u7d50\u679c\u30fb\u5b9f\u7d50\u679c\u30fb\u78ba\u8a8d\u8005\u30fb\u78ba\u8a8d\u6642\u523b\u300d\u3067\u6b8b\u3059\u3068\u3001\u5f8c\u304b\u3089\u518d\u691c\u8a3c\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u65e7PHP\u3078\u623b\u3059\u524d\u306b\u8003\u3048\u308b\u3053\u3068\u3068\u518d\u767a\u9632\u6b62<\/h2>\n<figure class=\"wp-block-image size-full\"><img src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/section-05-9.webp\" alt=\"\u65e7PHP\u3078\u623b\u3059\u524d\u306b\u8003\u3048\u308b\u3053\u3068\u3068\u518d\u767a\u9632\u6b62\u306e\u56f3\u89e3\" loading=\"lazy\" decoding=\"async\" \/><\/figure>\n<p>\u5207\u66ff\u76f4\u5f8c\u306b\u767d\u753b\u9762\u304c\u51fa\u308b\u3068\u3001\u7ba1\u7406\u753b\u9762\u306e\u9078\u629e\u80a2\u3092\u4e00\u3064\u524d\u306b\u623b\u3057\u305f\u304f\u306a\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u4eca\u56de\u306e\u7dca\u6025\u66f4\u65b0\u306f<a href=\"https:\/\/www.php.net\/archive\/2026.php#2026-10-21-5\" target=\"_blank\" rel=\"noopener noreferrer\">PHP\u516c\u5f0f<\/a>\u304c\u8a8d\u8a3c\u524d\u306e\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u306b\u3064\u306a\u304c\u308a\u5f97\u308b\u3068\u3059\u308b\u4e8c\u3064\u306e\u6b20\u9665\u306b\u5bfe\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u300c\u53e4\u3044PHP\u3078\u623b\u305b\u3070\u8868\u793a\u304c\u76f4\u308b\u300d\u306f\u4e92\u63db\u6027\u554f\u984c\u3092\u793a\u3059\u6750\u6599\u3067\u3042\u3063\u3066\u3001\u5b89\u5168\u3092\u4fdd\u8a3c\u3059\u308b\u7d50\u8ad6\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u7279\u306b\u516c\u958bWeb\u30b5\u30fc\u30d0\u30fc\u3092\u65e7\u7248\u306e\u307e\u307e\u9577\u6642\u9593\u904b\u7528\u3059\u308b\u5224\u65ad\u306f\u3001\u4e8b\u696d\u4e0a\u306e\u969c\u5bb3\u3068\u4fb5\u5bb3\u30ea\u30b9\u30af\u3092\u540c\u6642\u306b\u8a55\u4fa1\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u7dca\u6025\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u304c\u5fc5\u8981\u306a\u3089\u6761\u4ef6\u3092\u660e\u6587\u5316\u3059\u308b<\/h3>\n<p>\u305f\u3068\u3048\u3070\u6c7a\u6e08\u304c\u5b8c\u5168\u505c\u6b62\u3057\u3001\u4fee\u6b63\u6e08\u307f\u306e\u5225\u7cfb\u7d71\u3082\u4f7f\u3048\u305a\u3001\u30db\u30b9\u30c8\u304c\u7dca\u6025\u5bfe\u5fdc\u4e2d\u306e\u5834\u5408\u306b\u3001\u904b\u7528\u8cac\u4efb\u8005\u304c\u77ed\u6642\u9593\u306e\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u691c\u8a0e\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u305d\u306e\u5834\u5408\u3082\u3001\u516c\u958b\u906e\u65ad\u3084\u30a2\u30af\u30bb\u30b9\u5236\u9650\u3001\u91cd\u8981\u6a5f\u80fd\u306e\u505c\u6b62\u3001\u30db\u30b9\u30c8\u306e\u66ab\u5b9a\u9632\u5fa1\u3001\u76e3\u8996\u5f37\u5316\u3001\u518d\u66f4\u65b0\u671f\u9650\u3092\u7d44\u307f\u5408\u308f\u305b\u3001\u6b8b\u308b\u30ea\u30b9\u30af\u3092\u8a18\u9332\u3057\u307e\u3059\u3002PHP\u516c\u5f0f\u306f\u66ab\u5b9a\u7b56\u3092\u5b8c\u5168\u306a\u89e3\u6c7a\u3068\u306f\u8a8d\u3081\u3066\u3044\u307e\u305b\u3093\u3002\u30db\u30b9\u30c8\u306eWAF\u9069\u7528\u3060\u3051\u3067\u300c\u4fee\u6b63\u5b8c\u4e86\u300d\u3068\u8868\u793a\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u300c\u4e00\u6642\u7684\u300d\u306e\u5b9a\u7fa9\u304c\u66d6\u6627\u3060\u3068\u65e7\u7248\u306b\u623b\u3057\u305f\u307e\u307e\u6570\u9031\u9593\u304c\u904e\u304e\u307e\u3059\u3002\u627f\u8a8d\u8005\u3001\u5224\u65ad\u7406\u7531\u3001\u623b\u3057\u305f\u6642\u523b\u3001\u6b8b\u3057\u305f\u516c\u958b\u7bc4\u56f2\u3001\u6b21\u306b\u8a66\u3059\u4fee\u6b63\u7248\u3001\u671f\u9650\u3001\u518d\u691c\u8a3c\u62c5\u5f53\u3092\u969c\u5bb3\u30c1\u30b1\u30c3\u30c8\u306b\u66f8\u304d\u307e\u3059\u3002\u671f\u9650\u306b\u9593\u306b\u5408\u308f\u306a\u3044\u5834\u5408\u306f\u518d\u627f\u8a8d\u3057\u3001\u516c\u958b\u7d99\u7d9a\u306e\u53ef\u5426\u3092\u5224\u65ad\u3057\u307e\u3059\u3002\u904b\u7528\u3092\u7d9a\u3051\u308b\u304b\u4e00\u6642\u505c\u6b62\u3059\u308b\u304b\u306f\u3001\u30b5\u30a4\u30c8\u306e\u30c7\u30fc\u30bf\u306e\u91cd\u8981\u5ea6\u3001\u653b\u6483\u9762\u3001\u4ee3\u66ff\u624b\u6bb5\u306b\u3088\u3063\u3066\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n<h3>\u5fa9\u65e7\u5f8c\u306b\u6b8b\u3059\u691c\u8a3c\u8a3c\u8de1<\/h3>\n<p>\u5fa9\u65e7\u5f8c\u306f\u300c\u3069\u306e\u30a8\u30e9\u30fc\u3092\u3001\u4f55\u3092\u5909\u3048\u3066\u89e3\u6d88\u3057\u305f\u304b\u300d\u3092\u66f8\u304d\u307e\u3059\u3002\u4fee\u6b63\u6e08\u307fPHP\u306e\u7248\u3068\u30db\u30b9\u30c8\u306e\u544a\u77e5\u3001WordPress\u30fb\u30d7\u30e9\u30b0\u30a4\u30f3\u30fb\u30c6\u30fc\u30de\u306e\u7248\u3001\u78ba\u8a8d\u3057\u305fURL\u3068\u64cd\u4f5c\u3001\u30c6\u30b9\u30c8\u7d50\u679c\u3001\u30ed\u30b0\u306e\u518d\u767a\u6709\u7121\u3092\u8a18\u9332\u3057\u307e\u3059\u3002\u65e7\u7248\u306b\u623b\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u3001\u623b\u3057\u305f\u306a\u3089\u518d\u66f4\u65b0\u306e\u8a08\u753b\u3092\u660e\u78ba\u306b\u3057\u307e\u3059\u3002\u5225\u74b0\u5883\u304c\u3042\u308b\u306a\u3089\u540c\u3058\u8a2d\u5b9a\u3092\u518d\u73fe\u3057\u3001\u5c06\u6765\u306e\u66f4\u65b0\u30ea\u30cf\u30fc\u30b5\u30eb\u306b\u4f7f\u3044\u307e\u3059\u3002\u5358\u306b\u300c\u753b\u9762\u8868\u793aOK\u300d\u3068\u3060\u3051\u66f8\u3044\u305f\u8a18\u9332\u3067\u306f\u3001\u6b21\u56de\u306e\u66f4\u65b0\u6642\u306b\u5224\u65ad\u3092\u7e70\u308a\u8fd4\u3059\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u4eca\u56de\u306e500\u304c\u5076\u7136\u306e\u4e92\u63db\u30a8\u30e9\u30fc\u3060\u3063\u305f\u3068\u3057\u3066\u3082\u3001\u540c\u3058\u30b5\u30a4\u30c8\u3067\u53e4\u3044\u30d7\u30e9\u30b0\u30a4\u30f3\u3084\u72ec\u81ea\u30b3\u30fc\u30c9\u304c\u591a\u3051\u308c\u3070\u3001\u6b21\u306ePHP\u66f4\u65b0\u3067\u3082\u505c\u6b62\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u5b9a\u671f\u7684\u306a\u68da\u5378\u3057\u3001\u63d0\u4f9b\u5143\u306e\u66f4\u65b0\u5c65\u6b74\u78ba\u8a8d\u3001\u30c6\u30b9\u30c8\u74b0\u5883\u3067\u306ePHP\u7cfb\u7d71\u66f4\u65b0\u3001\u76e3\u8996\u3001\u5fa9\u5143\u8a13\u7df4\u3092\u904b\u7528\u8a08\u753b\u3078\u5165\u308c\u3066\u304f\u3060\u3055\u3044\u3002\u5177\u4f53\u7684\u306a\u4e8b\u524d\u30c1\u30a7\u30c3\u30af\u306f<a href=\"https:\/\/withcode.tech\/media\/php-update-plugin-compatibility-2026\/\">PHP\u66f4\u65b0\u524d\u5f8c\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u30fb\u30c6\u30fc\u30de\u4e92\u63db\u6027\u78ba\u8a8d<\/a>\u3067\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f\uff1a\u767d\u753b\u9762\u3001\u30ea\u30ab\u30d0\u30ea\u30fc\u30e2\u30fc\u30c9\u3001PHP\u7248\u306e\u5224\u65ad<\/h2>\n<figure class=\"wp-block-image size-full\"><img src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/section-06-5.webp\" alt=\"\u3088\u304f\u3042\u308b\u8cea\u554f\uff1a\u767d\u753b\u9762\u3001\u30ea\u30ab\u30d0\u30ea\u30fc\u30e2\u30fc\u30c9\u3001PHP\u7248\u306e\u5224\u65ad\u306e\u56f3\u89e3\" loading=\"lazy\" decoding=\"async\" \/><\/figure>\n<h3>Q. \u767d\u753b\u9762\u306a\u3089\u3001\u4eca\u56de\u306ePHP\u8106\u5f31\u6027\u306b\u653b\u6483\u3055\u308c\u305f\u8a3c\u62e0\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u3044\u3044\u3048\u3002\u767d\u753b\u9762\u306fPHP\u306e\u81f4\u547d\u7684\u30a8\u30e9\u30fc\u3001\u51fa\u529b\u8a2d\u5b9a\u3001\u30c6\u30fc\u30de\u30fb\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u4e0d\u5177\u5408\u306a\u3069\u3067\u3082\u8d77\u3053\u308a\u307e\u3059\u3002\u4eca\u56de\u306e\u8106\u5f31\u6027\u306b\u3088\u308b\u4fb5\u5bb3\u306e\u6709\u7121\u306f\u3001\u8868\u793a\u75c7\u72b6\u3060\u3051\u3067\u306f\u5224\u5b9a\u3067\u304d\u307e\u305b\u3093\u3002\u30ed\u30b0\u306e\u4fdd\u5b58\u3068\u5c02\u9580\u5bb6\u306b\u3088\u308b\u8abf\u67fb\u304c\u5fc5\u8981\u3067\u3059\u3002\u4e0d\u5be9\u306a\u7ba1\u7406\u8005\u30a2\u30ab\u30a6\u30f3\u30c8\u3001\u672a\u77e5\u306e\u30d5\u30a1\u30a4\u30eb\u3001\u6539\u3056\u3093\u3001\u5916\u90e8\u901a\u4fe1\u306a\u3069\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u901a\u5e38\u306e\u4e92\u63db\u6027\u30a8\u30e9\u30fc\u3068\u3057\u3066\u7247\u3065\u3051\u305a\u3001\u30db\u30b9\u30c8\u3068\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5bfe\u5fdc\u62c5\u5f53\u3078\u9023\u7d61\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>Q. WordPress\u672c\u4f53\u3092\u66f4\u65b0\u3059\u308c\u3070500\u3082PHP\u306e\u6b20\u9665\u3082\u76f4\u308a\u307e\u3059\u304b\uff1f<\/h3>\n<p>WordPress\u672c\u4f53\u306e\u66f4\u65b0\u304c\u4e92\u63db\u6027\u6539\u5584\u306b\u5f79\u7acb\u3064\u5834\u5408\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u4eca\u56de\u306ePHP\u672c\u4f53\u306e\u6b20\u9665\u306f\u76f4\u305b\u307e\u305b\u3093\u3002<a href=\"https:\/\/wordpress.org\/news\/2026\/10\/critical-php-security-release\/\" target=\"_blank\" rel=\"noopener noreferrer\">WordPress\u516c\u5f0f<\/a>\u306fWordPress\u56fa\u6709\u306e\u6b20\u9665\u3067\u306f\u306a\u304f\u3001WordPress\u306e\u66f4\u65b0\u306f\u4e0d\u8981\u30fb\u4e88\u5b9a\u3082\u306a\u3044\u3068\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002500\u306e\u539f\u56e0\u3082\u30ed\u30b0\u3067\u7279\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002WordPress\u66f4\u65b0\u3001PHP\u66f4\u65b0\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u4fee\u6b63\u306f\u5225\u306e\u4f5c\u696d\u3068\u3057\u3066\u7ba1\u7406\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>Q. \u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u5168\u90e8\u505c\u6b62\u3057\u3066\u3082500\u306a\u3089\u4f55\u3092\u898b\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u30c6\u30fc\u30de\u3001\u72ec\u81ea\u30b3\u30fc\u30c9\u3001PHP\u62e1\u5f35\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u8a2d\u5b9a\u3001\u6a29\u9650\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3001PHP\u30ef\u30fc\u30ab\u30fc\u306e\u8d77\u52d5\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3059\u3079\u3066\u3092\u7121\u52b9\u5316\u3059\u308b\u524d\u306b\u30ed\u30b0\u3067\u539f\u56e0\u3092\u7d5e\u308b\u307b\u3046\u304c\u5b89\u5168\u3067\u3059\u3002\u5168\u505c\u6b62\u3092\u65e2\u306b\u5b9f\u65bd\u3057\u305f\u306a\u3089\u3001\u3069\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u6709\u52b9\u3060\u3063\u305f\u304b\u3092\u63a7\u3048\u3001\u6c7a\u6e08\u30fb\u8a8d\u8a3c\u30fb\u9632\u5fa1\u6a5f\u80fd\u304c\u6b62\u307e\u3063\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d\u3057\u307e\u3059\u3002\u505c\u6b62\u3057\u3066\u3082\u5909\u5316\u304c\u306a\u3051\u308c\u3070\u3001\u5143\u306e\u72b6\u614b\u3078\u623b\u3057\u3066\u30db\u30b9\u30c8\u306e\u30a8\u30e9\u30fc\u30ed\u30b0\u3092\u8abf\u3079\u307e\u3059\u3002<\/p>\n<h3>Q. <code>WP_DEBUG<\/code>\u3092\u6709\u52b9\u306b\u3057\u305f\u3089\u8a2a\u554f\u8005\u306b\u3082\u30a8\u30e9\u30fc\u304c\u898b\u3048\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u8a2d\u5b9a\u6b21\u7b2c\u3067\u3059\u3002<code>WP_DEBUG_DISPLAY<\/code>\u304c\u6709\u52b9\u3060\u3068\u8868\u793a\u3055\u308c\u5f97\u307e\u3059\u3002WordPress\u516c\u5f0f\u306f\u672c\u756a\u3067\u306e\u5e38\u7528\u3092\u63a8\u5968\u3057\u3066\u3044\u307e\u305b\u3093\u3002\u5fc5\u8981\u306a\u77ed\u6642\u9593\u3060\u3051\u9069\u5207\u306b\u30ed\u30b0\u3078\u8a18\u9332\u3057\u3001\u516c\u958b\u753b\u9762\u306b\u306f\u51fa\u3055\u305a\u3001\u8abf\u67fb\u5f8c\u306f\u8a2d\u5b9a\u3068\u30ed\u30b0\u3092\u6574\u7406\u3057\u307e\u3059\u3002\u30ed\u30b0\u306b\u306f\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u3084\u500b\u4eba\u60c5\u5831\u304c\u542b\u307e\u308c\u308b\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u3001\u516c\u958bURL\u304b\u3089\u8aad\u3081\u306a\u3044\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>Q. 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