{"id":10439,"date":"2026-02-24T08:39:42","date_gmt":"2026-02-23T23:39:42","guid":{"rendered":"https:\/\/www.web-cosmo.net\/?p=10439"},"modified":"2026-02-27T15:01:04","modified_gmt":"2026-02-27T06:01:04","slug":"wordpress%e3%81%ae%e3%80%8c%e7%99%bd%e3%81%84%e7%94%bb%e9%9d%a2%e3%80%8d%e3%82%a8%e3%83%a9%e3%83%bc%e3%81%8b%e3%82%89%e5%ad%a6%e3%81%b6%e3%83%87%e3%83%90%e3%83%83%e3%82%b0%e6%89%8b%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.web-cosmo.net\/?p=10439","title":{"rendered":"WordPress\u306e\u300c\u767d\u3044\u753b\u9762\u300d\u30a8\u30e9\u30fc\u304b\u3089\u5b66\u3076\u30c7\u30d0\u30c3\u30b0\u624b\u6cd5"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-cover is-light has-parallax\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-0 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class=\"wp-block-heading\">\u30c7\u30d0\u30c3\u30b0\u306e\u7b2c\u4e00\u6b69\uff1aWP_DEBUG\u30e2\u30fc\u30c9\u3092\u6709\u52b9\u306b\u3059\u308b<\/h2>\n\n\n\n<p>WordPress\u306b\u306f\u6a19\u6e96\u3067\u30c7\u30d0\u30c3\u30b0\u6a5f\u80fd\u304c\u5099\u308f\u3063\u3066\u3044\u307e\u3059\u3002wp-config.php\u3092\u7de8\u96c6\u3059\u308b\u3053\u3068\u3067\u30a8\u30e9\u30fc\u306e\u8a73\u7d30\u3092\u30ed\u30b0\u3068\u3057\u3066\u8a18\u9332\u3067\u304d\u3001\u554f\u984c\u30d5\u30a1\u30a4\u30eb\u3068\u884c\u756a\u53f7\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">wp-config.php\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/h3>\n\n\n\n<p>FTP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\uff08FileZilla\u306a\u3069\uff09\u307e\u305f\u306f\u30b5\u30fc\u30d0\u30fc\u306e\u30d5\u30a1\u30a4\u30eb\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u304b\u3089wp-config.php\u3092\u958b\u304d\u3001\u4ee5\u4e0b\u306e3\u884c\u3092\u8ffd\u52a0\u30fb\u5909\u66f4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>define( 'WP_DEBUG', true );<\/code> \u2015 \u30c7\u30d0\u30c3\u30b0\u30e2\u30fc\u30c9\u3092\u6709\u52b9\u5316\u3059\u308b<\/li>\n\n\n\n<li><code>define( 'WP_DEBUG_LOG', true );<\/code> \u2015 \/wp-content\/debug.log \u306b\u30a8\u30e9\u30fc\u3092\u8a18\u9332\u3059\u308b<\/li>\n\n\n\n<li><code>define( 'WP_DEBUG_DISPLAY', false );<\/code> \u2015 \u753b\u9762\u3078\u306e\u30a8\u30e9\u30fc\u8868\u793a\u3092\u6291\u5236\u3059\u308b\uff08\u672c\u756a\u74b0\u5883\u5411\u3051\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u8a2d\u5b9a\u5f8c\u306b \/wp-content\/debug.log \u3092\u78ba\u8a8d\u3059\u308b\u3068\u300cFatal error: \u2026\uff08\u30d5\u30a1\u30a4\u30eb\u540d\u30fb\u884c\u756a\u53f7\uff09\u300d\u304c\u8a18\u9332\u3055\u308c\u3066\u304a\u308a\u3001\u554f\u984c\u7b87\u6240\u3092\u30d4\u30f3\u30dd\u30a4\u30f3\u30c8\u3067\u7279\u5b9a\u3067\u304d\u307e\u3059\u3002\u4f5c\u696d\u304c\u5b8c\u4e86\u3057\u305f\u3089\u5fc5\u305aWP_DEBUG\u3092false\u306b\u623b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30e1\u30e2\u30ea\u4e0a\u9650\u3092\u5f15\u304d\u4e0a\u3052\u308b\u65b9\u6cd5<\/h4>\n\n\n\n<p>PHP\u306e\u30e1\u30e2\u30ea\u4e0d\u8db3\u304c\u539f\u56e0\u3068\u7591\u308f\u308c\u308b\u5834\u5408\u306f\u3001wp-config.php\u306b\u4ee5\u4e0b\u306e1\u884c\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>define( 'WP_MEMORY_LIMIT', '256M' );<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u306a\u304a\u3001\u30b5\u30fc\u30d0\u30fc\u5074\u306ephp.ini\u3067\u30e1\u30e2\u30ea\u4e0a\u9650\u304c\u56fa\u5b9a\u3055\u308c\u3066\u3044\u308b\u30b1\u30fc\u30b9\u3067\u306f\u3001\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4f1a\u793e\u3078\u306e\u554f\u3044\u5408\u308f\u305b\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d7\u30e9\u30b0\u30a4\u30f3\u3068\u30c6\u30fc\u30de\u3092\u5207\u308a\u5206\u3051\u3066\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c8\u3059\u308b<\/h2>\n\n\n\n<p>\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u3092\u898b\u3066\u3082\u539f\u56e0\u304c\u7279\u5b9a\u3057\u306b\u304f\u3044\u5834\u5408\u306f\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u3068\u30c6\u30fc\u30de\u30921\u3064\u305a\u3064\u7121\u52b9\u5316\u3057\u3066\u554f\u984c\u3092\u5207\u308a\u5206\u3051\u308b\u65b9\u6cd5\u304c\u6709\u52b9\u3067\u3059\u3002\u3053\u308c\u306f\u300c\u30d0\u30a4\u30ca\u30ea\u30b5\u30fc\u30c1\u300d\u7684\u306a\u30c7\u30d0\u30c3\u30b0\u624b\u6cd5\u3068\u3057\u3066\u3001\u30d7\u30ed\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u73fe\u5834\u3067\u3088\u304f\u4f7f\u3046\u9244\u677f\u306e\u624b\u9806\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u4e00\u62ec\u7121\u52b9\u5316\u3059\u308b\u624b\u9806<\/h3>\n\n\n\n<p>\u7ba1\u7406\u753b\u9762\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001FTP\u3067 \/wp-content\/plugins\/ \u30d5\u30a9\u30eb\u30c0\u540d\u3092\u5909\u66f4\uff08\u4f8b\uff1aplugins_old\uff09\u3059\u308b\u3060\u3051\u3067\u5168\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u7121\u52b9\u5316\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3067\u753b\u9762\u304c\u5fa9\u65e7\u3057\u305f\u5834\u5408\u3001\u539f\u56e0\u306f\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u3059\u3002\u305d\u306e\u5f8c\u30d5\u30a9\u30eb\u30c0\u540d\u3092\u5143\u306b\u623b\u3057\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u30921\u3064\u305a\u3064\u6709\u52b9\u5316\u3057\u3066\u72af\u4eba\u3092\u7d5e\u308a\u8fbc\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c6\u30fc\u30de\u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u30c6\u30fc\u30de\u306b\u5207\u308a\u66ff\u3048\u308b\u624b\u9806<\/h3>\n\n\n\n<p>\u30d7\u30e9\u30b0\u30a4\u30f3\u7121\u52b9\u5316\u3067\u6539\u5584\u3057\u306a\u3044\u5834\u5408\u306f\u3001\u30c6\u30fc\u30de\u304c\u539f\u56e0\u306e\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\/wp-content\/themes\/ \u5185\u306e\u30a2\u30af\u30c6\u30a3\u30d6\u30c6\u30fc\u30de\u30d5\u30a9\u30eb\u30c0\u540d\u3092\u5909\u66f4\u3059\u308b\u3068\u3001WordPress\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u30c6\u30fc\u30de\uff08Twenty\u7cfb\uff09\u306b\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3057\u307e\u3059\u3002\u3053\u308c\u3067\u5fa9\u65e7\u3057\u305f\u5834\u5408\u306f\u30c6\u30fc\u30de\u306ePHP\u30b3\u30fc\u30c9\u3092\u898b\u76f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u5b50\u30c6\u30fc\u30de\u30fbfunctions.php\u306e\u30c1\u30a7\u30c3\u30af\u30dd\u30a4\u30f3\u30c8<\/h4>\n\n\n\n<p>\u5b50\u30c6\u30fc\u30de\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u89aa\u30c6\u30fc\u30de\u30fb\u5b50\u30c6\u30fc\u30de\u306e\u4e21\u65b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u7279\u306b\u5b50\u30c6\u30fc\u30de\u306efunctions.php\u306b\u5f8c\u304b\u3089\u8ffd\u8a18\u3057\u305f\u30b3\u30fc\u30c9\u304c\u539f\u56e0\u306b\u306a\u3063\u3066\u3044\u308b\u30b1\u30fc\u30b9\u306f\u975e\u5e38\u306b\u591a\u304f\u3001\u30b3\u30fc\u30c9\u306e\u672b\u5c3e\u306b\u300c?\u300d\uff08PHP\u30af\u30ed\u30fc\u30b8\u30f3\u30b0\u30bf\u30b0\uff09\u306e\u5f8c\u306b\u4f59\u5206\u306a\u7a7a\u767d\u3084\u6587\u5b57\u304c\u6df7\u5165\u3057\u3066\u3044\u306a\u3044\u304b\u3082\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc\u30ed\u30b0\u3068PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u78ba\u8a8d<\/h2>\n\n\n\n<p>wp-config.php\u306e\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u3067\u3082\u624b\u304c\u304b\u308a\u304c\u5f97\u3089\u308c\u306a\u3044\u5834\u5408\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u81ea\u4f53\u306e\u30a8\u30e9\u30fc\u30ed\u30b0\u3092\u53c2\u7167\u3057\u307e\u3059\u3002cPanel\u3084\u3055\u304f\u3089\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30fb\u30a8\u30c3\u30af\u30b9\u30b5\u30fc\u30d0\u30fc\u306a\u3069\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d1\u30cd\u30eb\u304b\u3089\u300c\u30a8\u30e9\u30fc\u30ed\u30b0\u300d\u3092\u78ba\u8a8d\u3059\u308b\u3068\u3001Apache\u307e\u305f\u306fnginx\u30ec\u30d9\u30eb\u306e\u30a8\u30e9\u30fc\u304c\u628a\u63e1\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u78ba\u8a8d\u3082\u91cd\u8981\u3067\u3059\u3002WordPress\u306e\u63a8\u5968PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u306f7.4\u4ee5\u4e0a\u3067\u3059\u304c\u3001PHP 8.1\u30fb8.2\u3078\u306e\u79fb\u884c\u3067\u53e4\u3044\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u52d5\u4f5c\u3057\u306a\u304f\u306a\u308aWSoD\u304c\u8d77\u304d\u308b\u30b1\u30fc\u30b9\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u306ePHP\u30d0\u30fc\u30b8\u30e7\u30f3\u3068WordPress\u30fb\u5404\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u5bfe\u5fdc\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u7167\u3089\u3057\u5408\u308f\u305b\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5fa9\u65e7\u5f8c\u306e\u518d\u767a\u9632\u6b62\u7b56<\/h2>\n\n\n\n<p>WSoD\u304b\u3089\u5fa9\u65e7\u3057\u305f\u3042\u3068\u306f\u3001\u540c\u3058\u30c8\u30e9\u30d6\u30eb\u3092\u7e70\u308a\u8fd4\u3055\u306a\u3044\u305f\u3081\u306e\u5bfe\u7b56\u304c\u6b20\u304b\u305b\u307e\u305b\u3093\u3002\u30b3\u30b9\u30e2\u4f01\u753b\u306e<a href=\"https:\/\/www.web-cosmo.net\/?post_type=productionexample\">\u65bd\u5de5\u5b9f\u7e3e<\/a>\u3067\u3082\u3054\u7d39\u4ecb\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u3001\u4fdd\u5b88\u30fb\u904b\u7528\u30d5\u30a7\u30fc\u30ba\u3067\u306e\u4e88\u9632\u63aa\u7f6e\u304c\u30b5\u30a4\u30c8\u306e\u5b89\u5b9a\u7a3c\u50cd\u3092\u652f\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306e\u81ea\u52d5\u5316\uff08UpdraftPlus\u306a\u3069\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u6bce\u65e5\u81ea\u52d5\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u8a2d\u5b9a\uff09<\/li>\n\n\n\n<li>\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u74b0\u5883\u3067\u306e\u30c6\u30b9\u30c8\uff08\u672c\u756a\u74b0\u5883\u306b\u9069\u7528\u3059\u308b\u524d\u306b\u66f4\u65b0\u5185\u5bb9\u3092\u691c\u8a3c\u3059\u308b\uff09<\/li>\n\n\n\n<li>\u30d7\u30e9\u30b0\u30a4\u30f3\u30fb\u30c6\u30fc\u30de\u306e\u66f4\u65b0\u306f1\u3064\u305a\u3064\u884c\u3044\u3001\u554f\u984c\u304c\u3042\u308c\u3070\u3059\u3050\u306b\u5207\u308a\u623b\u305b\u308b\u4f53\u5236\u3092\u6574\u3048\u308b<\/li>\n\n\n\n<li>PHP\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u5b9a\u671f\u78ba\u8a8d\u3068\u3001\u4f7f\u7528\u30d7\u30e9\u30b0\u30a4\u30f3\u30fb\u30c6\u30fc\u30de\u306e\u4e92\u63db\u6027\u30c1\u30a7\u30c3\u30af<\/li>\n\n\n\n<li>WP_DEBUG\u306f\u672c\u756a\u74b0\u5883\u3067\u306f\u5e38\u6642false\uff08\u7121\u52b9\uff09\u306b\u3057\u3066\u304a\u304f<\/li>\n<\/ol>\n\n\n\n<h2 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