{"id":18724,"date":"2020-10-01T10:36:04","date_gmt":"2020-10-01T01:36:04","guid":{"rendered":"https:\/\/elleneast.com\/?p=18724"},"modified":"2020-10-06T15:37:05","modified_gmt":"2020-10-06T06:37:05","slug":"wordpress-5-5-1-%e3%81%a8-php-7-4-4-%e3%81%b8%e3%81%ae%e3%82%a2%e3%83%83%e3%83%97%e3%82%b0%e3%83%ac%e3%83%bc%e3%83%89%e3%81%a7%e4%b8%8d%e5%85%b7%e5%90%88%e9%a0%bb%e7%99%ba","status":"publish","type":"post","link":"https:\/\/elleneast.com\/?p=18724","title":{"rendered":"WordPress 5.5.1 \u3068 PHP 7.4.4 \u3078\u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3067\u4e0d\u5177\u5408\u983b\u767a"},"content":{"rendered":"<p>WordPress 5.5.1 \u3078\u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3068 PHP 7.4.4 \u3078\u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3067\u8272\u3005\u3068\u4e0d\u5177\u5408\u304c\u51fa\u305f\u306e\u3067\u305d\u306e\u8a18\u9332\u3067\u3059\u3002<\/p>\n<p>\u540c\u3058\u3088\u3046\u306a\u30c8\u30e9\u30d6\u30eb\u306b\u906d\u9047\u3057\u305f\u4eba\u306e\u304a\u5f79\u306b\u7acb\u3066\u3070\u30fb\u30fb\u30fb\u3002<\/p>\n<p>\u3042\u3068\u30015.5.1 \u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u3066\u3082\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306a\u4e0d\u5177\u5408\u304c\u3067\u306a\u3044\u65b9\u6cd5\u304c\u5206\u304b\u308b\u65b9\uff08\u4e0d\u5177\u5408\u306e\u672c\u5f53\u306e\u539f\u56e0\u304c\u5206\u304b\u308b\u65b9\uff09\u304c\u3044\u305f\u3089\u3001\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u306d\uff01^^<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u6b21<\/p>\n<span 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6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/elleneast.com\/?p=18724\/#%E3%83%97%E3%83%A9%E3%82%B0%E3%82%A4%E3%83%B3%E3%81%AE%E6%9B%B4%E6%96%B0%E3%81%8C%E3%81%A7%E3%81%8D%E3%81%AA%E3%81%84%E3%82%93%E3%81%A0%E3%81%8C%EF%BC%9F\" >\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u66f4\u65b0\u304c\u3067\u304d\u306a\u3044\u3093\u3060\u304c\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/elleneast.com\/?p=18724\/#%E6%8A%95%E7%A8%BF%E8%A8%98%E4%BA%8B%E3%82%92%E5%85%AC%E9%96%8B%E3%81%A7%E3%81%8D%E3%81%AA%E3%81%84%E3%82%93%E3%81%A0%E3%81%8C%EF%BC%9F%EF%BC%81\" >\u6295\u7a3f\u8a18\u4e8b\u3092\u516c\u958b\u3067\u304d\u306a\u3044\u3093\u3060\u304c\uff1f\uff01<\/a><ul 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href=\"https:\/\/elleneast.com\/?p=18724\/#%E7%89%87%E3%81%A3%E7%AB%AF%E3%81%8B%E3%82%89%E3%83%97%E3%83%A9%E3%82%B0%E3%82%A4%E3%83%B3%E3%82%92%E7%84%A1%E5%8A%B9%E5%8C%96%E3%81%97%E3%82%88%E3%81%86%E3%81%A8%E3%81%97%E3%81%9F%E3%81%8C%E3%83%BB%E3%83%BB%E3%83%BB\" >\u7247\u3063\u7aef\u304b\u3089\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u7121\u52b9\u5316\u3057\u3088\u3046\u3068\u3057\u305f\u304c\u30fb\u30fb\u30fb<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/elleneast.com\/?p=18724\/#%E3%83%96%E3%83%AD%E3%83%83%E3%82%AF%E3%82%A8%E3%83%87%E3%82%A3%E3%82%BF%E3%81%AA%E3%82%89%E5%85%AC%E9%96%8B%E3%81%A7%E3%81%8D%E3%82%8B%E3%82%BE%EF%BC%81%EF%BC%81\" >\u30d6\u30ed\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\u306a\u3089\u516c\u958b\u3067\u304d\u308b\u30be\uff01\uff01<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/elleneast.com\/?p=18724\/#PHP_744_%E3%81%AB%E3%82%A2%E3%83%83%E3%83%97%E3%82%B0%E3%83%AC%E3%83%BC%E3%83%89%E3%81%97%E3%81%A6%E4%BA%8B%E6%85%8B%E3%81%8C%E6%82%AA%E5%8C%96%EF%BC%81%EF%BE%9F%D0%B4%EF%BE%9Flll\" >PHP 7.4.4 \u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u3066\u4e8b\u614b\u304c\u60aa\u5316\uff01(\uff9f\u0434\uff9flll)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/elleneast.com\/?p=18724\/#%E6%96%B0%E8%A6%8F%E3%83%97%E3%83%A9%E3%82%B0%E3%82%A4%E3%83%B3%E3%81%AE%E6%A4%9C%E7%B4%A2%E3%81%8C%E3%81%A7%E3%81%8D%E3%81%AA%E3%81%84%EF%BC%81\" >\u65b0\u898f\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u691c\u7d22\u304c\u3067\u304d\u306a\u3044\uff01<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/elleneast.com\/?p=18724\/#WordPress_%E3%81%AE%E3%82%A2%E3%83%83%E3%83%97%E3%82%B0%E3%83%AC%E3%83%BC%E3%83%89%E3%81%8C%E5%8E%9F%E5%9B%A0%E3%81%8B\" >WordPress \u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u304c\u539f\u56e0\u304b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/elleneast.com\/?p=18724\/#Enable_jQuery_Migrate_Helper_%E3%82%92%E8%A9%A6%E3%81%97%E3%81%A6%E3%81%BF%E3%81%9F%E3%81%8C%E3%83%80%E3%83%A1\" >Enable jQuery Migrate Helper \u3092\u8a66\u3057\u3066\u307f\u305f\u304c\u30c0\u30e1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/elleneast.com\/?p=18724\/#WP_Downgrade_Specific_Core_Version_%E3%81%8C%E4%BE%BF%E5%88%A9\" >WP Downgrade | Specific Core Version \u304c\u4fbf\u5229<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/elleneast.com\/?p=18724\/#%E3%81%A8%E3%82%8A%E3%81%82%E3%81%88%E3%81%9A%E3%81%AF%E8%A7%A3%E6%B1%BA\" >\u3068\u308a\u3042\u3048\u305a\u306f\u89e3\u6c7a<\/a><\/li><\/ul><\/nav><\/div>\n<h2 id=\"i-0\"><span class=\"ez-toc-section\" id=\"%E3%83%97%E3%83%A9%E3%82%B0%E3%82%A4%E3%83%B3%E3%81%AE%E6%9B%B4%E6%96%B0%E3%81%8C%E3%81%A7%E3%81%8D%E3%81%AA%E3%81%84%E3%82%93%E3%81%A0%E3%81%8C%EF%BC%9F\"><\/span>\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u66f4\u65b0\u304c\u3067\u304d\u306a\u3044\u3093\u3060\u304c\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u6700\u521d\u306b\u6c17\u4ed8\u3044\u305f\u7570\u5909\u306f\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u66f4\u65b0\u304c\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u3053\u3068\u3002<\/p>\n<p>\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u300c\u66f4\u65b0\u300d\u30ea\u30f3\u30af\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u3082\u3001\u4e0b\u56f3\u306e\u8d64\u67a0\u306e\u66f4\u65b0\u30de\u30fc\u30af\u304c\u3044\u3064\u307e\u3067\u3082\u30af\u30eb\u30af\u30eb\u56de\u3063\u3066\u3044\u3066\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u66f4\u65b0\u3055\u308c\u306a\u3044\u3002<\/p>\n<p><a href=\"https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error001.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18733 bigshadow\" src=\"https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error001.png\" alt=\"\" width=\"693\" height=\"117\" srcset=\"https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error001.png 693w, https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error001-300x51.png 300w\" sizes=\"auto, (max-width: 693px) 100vw, 693px\"><\/a><\/p>\n<p>\u4e00\u5fdc\u3001FTP \u30bd\u30d5\u30c8\u3067\u30b5\u30fc\u30d0\u30fc\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30d5\u30a9\u30eb\u30c0\u3092\u78ba\u8a8d\u3057\u3066\u307f\u305f\u3051\u3069\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u65e5\u4ed8\u304c\u65e7\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u307e\u307e\u306a\u306e\u3067\u3001\u66f4\u65b0\u3055\u308c\u3066\u306a\u3044\u306e\u306f\u78ba\u304b\u3002<\/p>\n<p>\u3053\u306e\u3068\u304d\u306f\u7279\u5b9a\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u554f\u984c\u3060\u3068\u601d\u3063\u3066\u91cd\u8981\u8996\u305b\u305a\u3001\u3042\u3068\u3067\u307e\u305f\u5bfe\u51e6\u3092\u8003\u3048\u3088\u3046\u3068\u601d\u3063\u3066\u653e\u7f6e\u3057\u3066\u304a\u3044\u305f\u3002<\/p>\n<h2 id=\"i-1\"><span class=\"ez-toc-section\" id=\"%E6%8A%95%E7%A8%BF%E8%A8%98%E4%BA%8B%E3%82%92%E5%85%AC%E9%96%8B%E3%81%A7%E3%81%8D%E3%81%AA%E3%81%84%E3%82%93%E3%81%A0%E3%81%8C%EF%BC%9F%EF%BC%81\"><\/span>\u6295\u7a3f\u8a18\u4e8b\u3092\u516c\u958b\u3067\u304d\u306a\u3044\u3093\u3060\u304c\uff1f\uff01<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u3042\u308b\u4f1a\u793e\u304b\u3089\u4f9d\u983c\u3055\u308c\u3066\u3044\u305f\u30bd\u30d5\u30c8\u306e\u30ec\u30d3\u30e5\u30fc\u8a18\u4e8b\u3092\u66f8\u304d\u3042\u3052\u305f\u3068\u3053\u308d\u3060\u3063\u305f\u3002\u5148\u65b9\u306b\u516c\u958b\u524d\u306e\u8a18\u4e8b\u3092\u78ba\u8a8d\u3057\u3066\u3082\u3089\u3044OK\u3092\u3082\u3089\u3063\u305f\u306e\u3067\u300c\u3088\u3057\u7d42\u308f\u3063\u305f\uff01\u300d\u3068\u601d\u3063\u3066\uff3b\u516c\u958b\uff3d\u30dc\u30bf\u30f3\u3092\u30dd\u30c1\u30ea\u3002<\/p>\n<p><a href=\"https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error004.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18732 bigshadow\" src=\"https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error004.png\" alt=\"\" width=\"275\" height=\"234\"><\/a><\/p>\n<p>\u30d6\u30e9\u30a6\u30b6\u753b\u9762\u304c\u66f4\u65b0\u3055\u308c\u3066\u3001\u8a18\u4e8b\u304c\u516c\u958b\u3055\u308c\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb\u3093\uff1f\uff01<\/p>\n<p>\u3068\u7570\u5e38\u306b\u6c17\u4ed8\u3044\u305f\u3002<\/p>\n<p>\u753b\u9762\u304c\u66f4\u65b0\u3055\u308c\u305f\u3051\u308c\u3069\uff3b\u516c\u958b\uff3d\u30dc\u30bf\u30f3\u304c\u305d\u306e\u307e\u307e\u306e\u72b6\u614b\u3067\u6b8b\u3063\u3066\u308b\u3002\u8a18\u4e8b\u304c\u516c\u958b\u3055\u308c\u305f\u306a\u3089\uff3b\u516c\u958b\uff3d\u30dc\u30bf\u30f3\u306e\u30c6\u30ad\u30b9\u30c8\u304c\uff3b\u66f4\u65b0\uff3d\u306b\u5909\u308f\u308b\u306f\u305a\u306a\u3093\u3060\u3051\u3069\u3002<\/p>\n<p>\u5909\u3060\u306a\u3041\uff1f\u3068\u601d\u3063\u3066\u30b5\u30a4\u30c8\u306e\u30db\u30fc\u30e0\u3078\u79fb\u52d5\u3057\u3066\u307f\u305f\u3051\u3069\u3001\u3084\u306f\u308a\u516c\u958b\u3055\u308c\u3066\u306a\u3044\u3002\u4f55\u5ea6\u8a66\u3057\u3066\u3082\u516c\u958b\u3055\u308c\u306a\u3044\u3002<\/p>\n<p>\u516c\u958b\u3067\u304d\u306a\u304d\u3083\u57f7\u7b46\u6599\u3092\u3082\u3089\u3048\u306a\u3044\u30be\uff01\uff08\u30fb\uff2f\u30fb\uff1b\uff09<\/p>\n<p>\u3068\u308a\u3042\u3048\u305a\u5148\u65b9\u306b\u300c\u30c8\u30e9\u30d6\u30eb\u304c\u8d77\u304d\u3066\u3059\u3050\u306b\u306f\u516c\u958b\u3067\u304d\u306a\u3044\u300d\u300c\u5c11\u3057\u304a\u5f85\u3061\u304f\u3060\u3055\u3044\u300d\u3068\u306e\u65e8\u3092\u4f1d\u3048\u3066\u3001\u6c17\u5408\u3044\u3092\u5165\u308c\u3066\u8abf\u67fb\u3092\u958b\u59cb\u3002<\/p>\n<h3 id=\"i-2\"><span class=\"ez-toc-section\" id=\"%E3%83%9C%E3%82%BF%E3%83%B3%E3%81%AE%E7%8A%B6%E6%85%8B%E3%81%8C%E3%81%A8%E3%81%8D%E3%81%A9%E3%81%8D%E5%A4%89%EF%BC%9F\"><\/span>\u30dc\u30bf\u30f3\u306e\u72b6\u614b\u304c\u3068\u304d\u3069\u304d\u5909\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u8a18\u4e8b\u306e\u516c\u958b\u3092\u8a66\u3057\u3066\u3044\u308b\u3068\u304d\u3001\u3068\u304d\u3069\u304d\u3001WordPress UI \u306e\u30dc\u30bf\u30f3\u306e\u72b6\u614b\u304c\u5909\u306b\u306a\u3063\u305f\u6c17\u304c\u3059\u308b\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\uff3b\u306a\u3093\u3061\u3083\u3089\uff3d\u3068\u3044\u3046\u30dc\u30bf\u30f3\u306e\u30c6\u30ad\u30b9\u30c8\u304c\u6d88\u3048\u3066\uff3b\u3000\uff3d\u3068\u3044\u3046\u3088\u3046\u306b\u30dc\u30bf\u30f3\u306e\u5f62\u3060\u3051\u6b8b\u3063\u305f\u308a\u3002<\/p>\n<h2 id=\"i-3\"><span class=\"ez-toc-section\" id=\"%E3%83%97%E3%83%A9%E3%82%B0%E3%82%A4%E3%83%B3%E3%81%AE%E5%89%8A%E9%99%A4%E3%81%8C%E3%81%A7%E3%81%8D%E3%81%AA%E3%81%84%EF%BC%81\"><\/span>\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u524a\u9664\u304c\u3067\u304d\u306a\u3044\uff01<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u305d\u3046\u3044\u3048\u3070\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u306e TinyMCE \u306e\u66f4\u65b0\u304c\u3067\u304d\u306a\u304b\u3063\u305f\u306e\u3092\u601d\u3044\u51fa\u3057\u305f\u3002\u3053\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u66f4\u65b0\u3067\u304d\u306a\u304b\u3063\u305f\u305b\u3044\u3067\u3001\u4f55\u304b\u304a\u304b\u3057\u306a\u3053\u3068\u306b\u306a\u3063\u305f\u306e\u3067\u306f\u306a\u3044\u304b\uff1f<\/p>\n<p>\u305d\u3046\u601d\u3063\u3066 WordPress \u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u7ba1\u7406\u753b\u9762\u3067 TinyMCE \u3092\u505c\u6b62\uff08\u7121\u52b9\u5316\uff09\u3002\u3053\u308c\u306f\u554f\u984c\u306a\u304f\u3067\u304d\u305f\u69d8\u5b50\u3002<\/p>\n<p>\u7d9a\u3051\u3066\uff3b\u524a\u9664\uff3d\u30ea\u30f3\u30af\u3092\u30af\u30ea\u30c3\u30af\u30fb\u30fb\u30fb\u3057\u305f\u3051\u3069\u4f55\u3082\u53cd\u5fdc\u304c\u7121\u3044\u3002\u753b\u9762\u306e\u66f4\u65b0\u3055\u3048\u8d77\u304d\u3066\u3044\u306a\u3044\u3088\u3046\u3060\u304c\u30fb\u30fb\u30fb\uff1f \u307e\u308b\u3067\u30ea\u30f3\u30af\u304c\u7121\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u3088\u3046\u306a\u611f\u3058\u3002<\/p>\n<p>\u5909\u3060\u306a\u3068\u601d\u3063\u3066\uff3bF5\uff3d\u3092\u62bc\u3057\u3066\u304b\u3089\uff08\u624b\u52d5\u3067\u753b\u9762\u306e\u66f4\u65b0\u3092\u3057\u3066\u304b\u3089\uff09\u3001\u4ed6\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u524a\u9664\u3092\u8a66\u307f\u308b\u304c\u3001\u3084\u306f\u308a\uff3b\u524a\u9664\uff3d\u30ea\u30f3\u30af\u304c\u53cd\u5fdc\u3057\u306a\u3044\u3002<\/p>\n<p>\u7d50\u5c40\u3001FTP \u30bd\u30d5\u30c8\u3067\u30b5\u30fc\u30d0\u30fc\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u30d5\u30a9\u30eb\u30c0 wp\/wp-content\/plugins \u306b\u3042\u308b TinyMCE \u306e\u30d5\u30a9\u30eb\u30c0\u3054\u3068\u524a\u9664\u3057\u305f\u3002<\/p>\n<p>\u305d\u306e\u3042\u3068\u518d\u3073\u6295\u7a3f\u8a18\u4e8b\u306e\u516c\u958b\u3092\u8a66\u307f\u308b\u304c\u3001\u3084\u306f\u308a\u30c0\u30e1\u3002<\/p>\n<h2 id=\"i-4\"><span class=\"ez-toc-section\" id=\"%E7%89%87%E3%81%A3%E7%AB%AF%E3%81%8B%E3%82%89%E3%83%97%E3%83%A9%E3%82%B0%E3%82%A4%E3%83%B3%E3%82%92%E7%84%A1%E5%8A%B9%E5%8C%96%E3%81%97%E3%82%88%E3%81%86%E3%81%A8%E3%81%97%E3%81%9F%E3%81%8C%E3%83%BB%E3%83%BB%E3%83%BB\"><\/span>\u7247\u3063\u7aef\u304b\u3089\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u7121\u52b9\u5316\u3057\u3088\u3046\u3068\u3057\u305f\u304c\u30fb\u30fb\u30fb<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>WordPress 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id=\"i-5\"><span class=\"ez-toc-section\" id=\"%E3%83%96%E3%83%AD%E3%83%83%E3%82%AF%E3%82%A8%E3%83%87%E3%82%A3%E3%82%BF%E3%81%AA%E3%82%89%E5%85%AC%E9%96%8B%E3%81%A7%E3%81%8D%E3%82%8B%E3%82%BE%EF%BC%81%EF%BC%81\"><\/span>\u30d6\u30ed\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\u306a\u3089\u516c\u958b\u3067\u304d\u308b\u30be\uff01\uff01<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u3042\u308c\u3053\u308c\u8abf\u3079\u3066\u3044\u308b\u3068\u304d\u3001\u3075\u3068\u300c\u30d6\u30ed\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\u3067\u8a66\u3057\u3066\u307f\u305f\u3089\u3069\u3046\u3060\u308d\u3046\uff1f\u300d\u3068\u79c1\u306e\u982d\u4e0a\u3067\u96fb\u7403\u304c\u30d4\u30ab\u30ea\u70b9\u706f\uff08\u79c1\u306f\u3044\u307e\u3060\u306b\u30af\u30e9\u30b7\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\u6d3e\uff09\u3002<\/p>\n<p>\u30d7\u30e9\u30b0\u30a4\u30f3\uff3bClassic Editor \uff3d\u306e\uff3b\u8a2d\u5b9a\uff3d\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u3001\u30a8\u30c7\u30a3\u30bf\u30fc\u3092\u5207\u308a\u66ff\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u3057\u3066\u307f\u305f\u3002<\/p>\n<p><a href=\"https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error003.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18729 bigshadow\" src=\"https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error003.png\" alt=\"\" width=\"423\" height=\"169\" srcset=\"https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error003.png 423w, https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error003-300x120.png 300w\" sizes=\"auto, (max-width: 423px) 100vw, 423px\"><\/a><\/p>\n<p>\u8a18\u4e8b\u4e00\u89a7\u753b\u9762\u306b\u623b\u3063\u3066\u3001\u30d6\u30ed\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\u3067\u8a72\u5f53\u306e\u8a18\u4e8b\u3092\u958b\u304d\u3001\uff3b\u516c\u958b\uff3d\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u307f\u305f\u3089\u30fb\u30fb\u30fb\u304a\u304a\u304a\uff01<\/p>\n<p><span class=\"sobig\">\u516c\u958b\u6210\u529f\uff01\uff01<\/span><\/p>\n<p>\u3053\u308c\u3067\u57f7\u7b46\u6599\u304c\u3082\u3089\u3048\u308b\u3002\uff08\uff34\uff3f\uff34\uff09<\/p>\n<p>\u53d6\u308a\u6025\u304e\u3001\u30ec\u30d3\u30e5\u30fc\u8a18\u4e8b\u3092\u4f9d\u983c\u3057\u3066\u304d\u305f\u4f1a\u793e\u306e\u62c5\u5f53\u306b\u300c\u8a18\u4e8b\u3092\u516c\u958b\u3057\u307e\u3057\u305f\uff01^^\u300d\u3068\u4f1d\u3048\u305f\u3002<\/p>\n<p>\u3057\u304b\u3057\u4e0d\u5177\u5408\u306e\u539f\u56e0\u304c\u307e\u3060\u30cf\u30c3\u30ad\u30ea\u3057\u306a\u3044\u306e\u3067\u8abf\u67fb\u7d9a\u884c\u3002<\/p>\n<div class=\"memo \">\n<div class=\"memo_ttl dfont\"> MEMO<\/div>\n<p>\u3053\u308c\u306f\u307e\u3055\u304b\u300c\u3082\u3046\u3044\u3044\u304b\u3052\u3093\u30af\u30e9\u30b7\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\u3092\u6368\u3066\u3066\u30d6\u30ed\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\u3092\u4f7f\u3048\uff01\uff08\uff0d\uff0d\uff03\uff09\u300d\u3068\u3044\u3046\u304a\u544a\u3052\u306a\u306e\u304b\uff01\uff1f<\/p>\n<\/div>\n<h2 id=\"i-6\"><span class=\"ez-toc-section\" id=\"PHP_744_%E3%81%AB%E3%82%A2%E3%83%83%E3%83%97%E3%82%B0%E3%83%AC%E3%83%BC%E3%83%89%E3%81%97%E3%81%A6%E4%BA%8B%E6%85%8B%E3%81%8C%E6%82%AA%E5%8C%96%EF%BC%81%EF%BE%9F%D0%B4%EF%BE%9Flll\"><\/span>PHP 7.4.4 \u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u3066\u4e8b\u614b\u304c\u60aa\u5316\uff01(\uff9f\u0434\uff9flll)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u8abf\u3079\u3066\u3044\u305f\u3089\u3001WordPress \u30b5\u30fc\u30d0\u30fc\u306e PHP \u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u6700\u65b0\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u3068\u6c17\u4ed8\u3044\u305f\u3002<\/p>\n<p>\u300c\u4eca\u307e\u3067\u306e\u4e0d\u5177\u5408\u306e\u539f\u56e0\u306f\u3053\u308c\u304b\uff01\uff1f\u300d\u3068\u601d\u3063\u3066\u3001PHP \u3092\uff3b\u63a8\u5968\uff3d\u30de\u30fc\u30af\u304c\u4ed8\u3044\u3066\u3044\u305f&nbsp; 7.4.4 \u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3002<\/p>\n<p>7.4.4 \u306b\u63a8\u5968\u30de\u30fc\u30af\u304c\u4ed8\u3044\u3066\u308b\u304f\u3089\u3044\u3060\u304b\u3089\u3001\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3059\u308b\u3053\u3068\u306b\u4e0d\u5b89\u306f\u7121\u304b\u3063\u305f\u304c\u30fb\u30fb\u30fb\u7518\u304b\u3063\u305f\u3002<\/p>\n<p>\u30d6\u30ed\u30b0\u306b\u623b\u3063\u3066\u753b\u9762\u3092\u66f4\u65b0\u3057\u3066\u307f\u308b\u3068\u30fb\u30fb\u30fb<\/p>\n<p><a href=\"https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error005.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18731 bigshadow\" src=\"https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error005.png\" alt=\"\" width=\"1321\" height=\"344\" srcset=\"https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error005.png 1321w, https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error005-300x78.png 300w, https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error005-1024x267.png 1024w, https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error005-768x200.png 768w, https:\/\/elleneast.com\/wp\/wp-content\/uploads\/PC_related\/Blog\/wordpress551error005-940x245.png 940w\" sizes=\"auto, (max-width: 1321px) 100vw, 1321px\"><\/a><\/p>\n<p><span class=\"sobig\">\u306a\u3093\u3058\u3083\u3053\u308a\u3083\u3041<\/span><span style=\"font-size: 2em;\">\u3042\u3042\u3041\u3041\u3041\uff01\uff01<\/span><span style=\"font-size: 2em;\">\u03a3(\uff9f\u0434\uff9flll)<\/span><\/p>\n<p>\u4e00\u77ac\u3042\u305b\u3063\u305f\u304c\u3001\u4e0a\u306e\u30a8\u30e9\u30fc\u3092\u3088\u304f\u898b\u3066\u307f\u308b\u3068\u3001\u306a\u306b\u306a\u306b\u30fb\u30fb\u30fb\u300ccrayon-syntax-highlighter\u300d\uff1f<\/p>\n<p>\u300c\u3042\u3041\u3001\u3042\u306e\u4f55\u5e74\u3082\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3055\u308c\u3066\u306a\u3044\u3001\u53e4\u3044\u30d7\u30e9\u30b0\u30a4\u30f3\u306d\uff01\u300d<\/p>\n<p>\u53e4\u3044\u30d7\u30e9\u30b0\u30a4\u30f3\u306a\u306e\u3067\u3001\u3044\u3064\u304b\u3053\u3046\u3044\u3046\u65e5\u304c\u6765\u308b\u3068\u306f\u601d\u3063\u3066\u305f\u3051\u3069\u3001PHP \u3092\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u3057\u305f\u305b\u3044\u3067\u3001\u3064\u3044\u306b\u3053\u306e\u65e5\u3092\u8fce\u3048\u305f\u306e\u3060\u308d\u3046\u3001\u3068\u7406\u89e3\u3057\u305f\u3002<\/p>\n<p>\u3067\u3001\u300ccrayon-syntax-highlighter\u300d\u3092\u7121\u52b9\u5316\u3057\u305f\u3089\u3001\u3053\u306e\u30a8\u30e9\u30fc\u306f\u6d88\u3048\u3066\u3001\u753b\u9762\u306f\u6b63\u5e38\u306b\u623b\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3084\u308c\u3084\u308c\u3002\uff08*\u00b4\u2207\uff40*; \u30db\u30c3<\/p>\n<p>\u300ccrayon-syntax-highlighter\u300d\u3068\u306f\u3053\u308c\u3067\u30aa\u30b5\u30e9\u30d0\u3060\u306a\u3002<\/p>\n<h2 id=\"i-7\"><span class=\"ez-toc-section\" id=\"%E6%96%B0%E8%A6%8F%E3%83%97%E3%83%A9%E3%82%B0%E3%82%A4%E3%83%B3%E3%81%AE%E6%A4%9C%E7%B4%A2%E3%81%8C%E3%81%A7%E3%81%8D%E3%81%AA%E3%81%84%EF%BC%81\"><\/span>\u65b0\u898f\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u691c\u7d22\u304c\u3067\u304d\u306a\u3044\uff01<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u524a\u9664\u3057\u305f TinyMCE \u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u518d\u3073\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u307f\u3088\u3046\u3068\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u7ba1\u7406\u753b\u9762\u306b\u884c\u3063\u3066\uff3b\u65b0\u898f\u8ffd\u52a0\uff3d\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u3001\u3044\u3064\u3082\u306e\u3088\u3046\u306b\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30a2\u30a4\u30b3\u30f3\u4e00\u89a7\u304c\u753b\u9762\u306b\u8868\u793a\u3055\u308c\u305f\u3002<\/p>\n<p>\u3067\u3001\uff3b\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u691c\u7d22\uff3d\u30dc\u30c3\u30af\u30b9\u306b \u201cTinyMCE\u201d \u3068\u5165\u529b\u3059\u308b\u3068\u3001\u540d\u524d\u304c\u4e00\u81f4\u3059\u308b\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u5019\u88dc\u306e\u30a2\u30a4\u30b3\u30f3\u4e00\u89a7\u304c\u8868\u793a\u30fb\u30fb\u30fb\u3055\u308c\u306a\u3044\u3002\u3042\u308c\uff1f \u3044\u3064\u3082\u306a\u3089\u8868\u793a\u3055\u308c\u308b\u306e\u306b\u3002<\/p>\n<p>\u30a2\u30a4\u30b3\u30f3\u306e\u4e00\u89a7\u304c\u8868\u793a\u3055\u308c\u305a\u3001\u300c\u4ed6\u306b\u3053\u3093\u306a\u30ad\u30fc\u30ef\u30fc\u30c9\u304c\u3042\u308a\u307e\u3059\uff5e\u300d\u307f\u305f\u3044\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u3001\u30c6\u30ad\u30b9\u30c8\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u3060\u3051\u304c\u305f\u304f\u3055\u3093\u8868\u793a\u3055\u308c\u305f\u3002<\/p>\n<p>\u300c\u753b\u9762\u306e\u6319\u52d5\u304c\u3044\u3064\u3082\u3068\u9055\u3046\u3088\u3046\u306a\uff1f\u300d\u3068\u601d\u3044\u3064\u3064\u3001\uff3b\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u691c\u7d22\uff3d\u30dc\u30c3\u30af\u30b9\u3067\u9055\u3046\u30c6\u30ad\u30b9\u30c8\u3092\u5165\u529b\u3057\u3066\u307f\u308b\u304c\u30fb\u30fb\u30fb\u4eca\u5ea6\u306f\u7121\u53cd\u5fdc\u3002<\/p>\n<p>\u3044\u3064\u3082\u306a\u3089\uff3b\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u691c\u7d22\uff3d\u30dc\u30c3\u30af\u30b9\u306b\u5165\u529b\u3059\u308b\u6587\u5b57\u3092\u5909\u3048\u308b\u305f\u3073\u306b\u3001\u5373\u5ea7\u306b\u30d7\u30e9\u30b0\u30a4\u30f3\u30a2\u30a4\u30b3\u30f3\u306e\u4e00\u89a7\u304c\u7f6e\u304d\u63db\u308f\u3063\u3066\u8868\u793a\u3055\u308c\u308b\u306e\u306b\u3002<\/p>\n<h2 id=\"i-8\"><span class=\"ez-toc-section\" id=\"WordPress_%E3%81%AE%E3%82%A2%E3%83%83%E3%83%97%E3%82%B0%E3%83%AC%E3%83%BC%E3%83%89%E3%81%8C%E5%8E%9F%E5%9B%A0%E3%81%8B\"><\/span>WordPress \u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u304c\u539f\u56e0\u304b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u300c\u305d\u3046\u3044\u3048\u3070\u3061\u3087\u3063\u3068\u524d\u306b WordPress \u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u30a2\u30c3\u30d7\u3057\u305f\u3088\u3046\u306a\u300d\u300c\u305d\u308c\u304c\u539f\u56e0\u304b\uff1f\u300d\u3068\u3044\u3046\u601d\u3044\u306f\u982d\u306e\u7247\u9685\u306b\u3042\u3063\u305f\u3093\u3067\u3059\u304c\u3001WordPress \u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u5143\u306b\u623b\u3059\u306e\u306f\u6642\u4ee3\u306b\u7f6e\u3044\u3066\u884c\u304b\u308c\u305d\u3046\u306a\u3001\u623b\u3059\u306e\u3082\u9762\u5012\u305d\u3046\u306a\u3001\u306a\u3093\u304b\u6c17\u304c\u9032\u307e\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u305d\u306e\u3053\u3068\u3068\u76f4\u63a5\u5bfe\u6c7a\u3059\u308b\u306e\u306f\u907f\u3051\u3066\u305f\u3093\u3067\u3059\u304c\u3002<\/p>\n<p>\u767a\u751f\u3057\u305f\u4e0d\u5177\u5408\u304c\u8a31\u5bb9\u3067\u304d\u306a\u3044\u3082\u306e\u3060\u3068\u611f\u3058\u305f\u306e\u3067\u3001WordPress \u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u554f\u984c\u306b\u3064\u3044\u3066\u8003\u3048\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u304b\u306a\u3068\u601d\u3044\u59cb\u3081\u305f\u3002<\/p>\n<h3 id=\"i-9\"><span class=\"ez-toc-section\" id=\"Enable_jQuery_Migrate_Helper_%E3%82%92%E8%A9%A6%E3%81%97%E3%81%A6%E3%81%BF%E3%81%9F%E3%81%8C%E3%83%80%E3%83%A1\"><\/span>Enable jQuery Migrate Helper \u3092\u8a66\u3057\u3066\u307f\u305f\u304c\u30c0\u30e1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u8abf\u3079\u3066\u307f\u308b\u3068\u3001WordPress \u3092 5.5 \u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u305f\u969b\u306b\u751f\u3058\u308b\u4e0d\u5177\u5408\u3092\u306a\u3093\u3068\u304b\u3057\u3066\u304f\u308c\u308b\u300cEnable jQuery Migrate Helper\u300d\u3068\u3044\u3046\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u3042\u308b\u3089\u3057\u3044\u3002<\/p>\n<p>\u3055\u3063\u305d\u304f\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u6709\u52b9\u5316\u3057\u3066\u307f\u305f\u304c\u30fb\u30fb\u30fb\u75c7\u72b6\u306f\u6539\u5584\u3055\u308c\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n<h3 id=\"i-10\"><span class=\"ez-toc-section\" id=\"WP_Downgrade_Specific_Core_Version_%E3%81%8C%E4%BE%BF%E5%88%A9\"><\/span>WP Downgrade | Specific Core Version \u304c\u4fbf\u5229<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u8abf\u67fb\u3092\u7d9a\u3051\u308b\u3068\u3001WordPress \u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u7c21\u5358\u306b\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u3067\u304d\u308b\u300cWP Downgrade | Specific Core Version\u300d\u3068\u3044\u3046\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u3042\u308b\u3053\u3068\u304c\u5206\u304b\u3063\u305f\u3002<\/p>\n<p>WordPress \u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u624b\u52d5\u3067\u4e0b\u3052\u3088\u3046\u3068\u601d\u3046\u3068\u3001\u307e\u3060\u305d\u306e\u3084\u308a\u65b9\u306f\u8abf\u3079\u3066\u306a\u3044\u3051\u3069\u3001\u306a\u3093\u304b\u9762\u5012\u306a\u4e88\u611f\u304c\u3057\u3066\u5f8c\u305a\u3055\u308a\u3057\u3061\u3083\u3046\u3002<\/p>\n<p>\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u7c21\u5358\u306b\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u3067\u304d\u308b\u306a\u3089\u8a66\u3057\u3066\u307f\u3088\u3046\u3068\u601d\u3044\u307e\u3057\u305f\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u5927\u304d\u306a\u5909\u66f4\u3092\u52a0\u3048\u308b\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u3001WordPress \u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3084\u305d\u306e\u4ed6\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306f\u3061\u3083\u3093\u3068\u53d6\u3063\u3066\u304a\u3044\u305f\u307b\u3046\u304c\u826f\u3044\u3068\u306e\u3053\u3068\u3002<\/p>\n<p>\u79c1\u306f UpdraftPlus \u3068\u3044\u3046\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u7528\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u4f7f\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u76f4\u524d\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u304c\u53d6\u3089\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304b\u3089\u3001\u300cWP Downgrade | Specific Core Version\u300d\u3092\u4f7f\u3063\u3066 WordPress \u3092\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<p>5.5.1 \u304b\u3089 5.4.2 \u3078\u3002<\/p>\n<p>\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u753b\u9762\u304b\u3089\u3082\u78ba\u8a8d\u3067\u304d\u307e\u3059\u304c\u3001\u6307\u5b9a\u3067\u304d\u308b WordPress \u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f<a href=\"https:\/\/wordpress.org\/download\/releases\/\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089\u306e\u30da\u30fc\u30b8<\/a>\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 id=\"i-11\"><span class=\"ez-toc-section\" id=\"%E3%81%A8%E3%82%8A%E3%81%82%E3%81%88%E3%81%9A%E3%81%AF%E8%A7%A3%E6%B1%BA\"><\/span>\u3068\u308a\u3042\u3048\u305a\u306f\u89e3\u6c7a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u524d\u8ff0\u306e\u30d7\u30e9\u30b0\u30a4\u30f3 WP Downgrade | Specific Core Version \u3092\u4f7f\u7528\u3057\u3066 WordPress \u3092 5.4.2 \u3078\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u5f8c\u3001\u4e0d\u5177\u5408\u304c\u8d77\u304d\u3066\u3044\u305f\u75c7\u72b6\u3092\u518d\u5ea6\u78ba\u8a8d\u3002<\/p>\n<p><span class=\"sobig\">\u304a\u3049\u3063\u30fb\u30fb\u30fb\u5168\u90e8\u76f4\u3063\u3066\u308b\uff01\uff01<\/span><\/p>\n<p>\u3068\u308a\u3042\u3048\u305a\u306f\u826f\u304b\u3063\u305f\u3002\uff08*\u00b4\u2207\uff40*; \u30db\u30c3<\/p>\n<p>WordPress 5.5.1 \u3067\u3082\u554f\u984c\u306a\u304f\u52d5\u3044\u3066\u308b\u30b5\u30a4\u30c8\u304c\u307b\u3068\u3093\u3069\u3060\u308d\u3046\u304b\u3089\u30015.5.1 \u81ea\u4f53\u304c\u60aa\u3044\u306e\u3067\u306f\u306a\u304f\u3001\u79c1\u306e\u30b5\u30a4\u30c8\u306e\u3069\u3053\u304b\u306e\u8a2d\u5b9a\u3068\u5e72\u6e09\u3057\u3066\u4e0d\u5177\u5408\u304c\u51fa\u305f\u3093\u3060\u3068\u601d\u3046\u3051\u3069\u3002<\/p>\n<p>\u305d\u3053\u3092\u8abf\u3079\u308b\u306e\u306f\u5927\u5909\u305d\u3046\u3060\u306a\u3041\u3002<\/p>\n<p>\u3044\u3064\u307e\u3067\u3082 WordPress 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