{"id":14153,"date":"2026-07-01T14:05:26","date_gmt":"2026-07-01T05:05:26","guid":{"rendered":"https:\/\/rakkoserver.com\/plus\/?p=14153"},"modified":"2026-07-01T14:05:26","modified_gmt":"2026-07-01T05:05:26","slug":"wordpress-eyecatch-setting-cannot","status":"publish","type":"post","link":"https:\/\/rakkoserver.com\/plus\/wordpress-eyecatch-setting-cannot\/","title":{"rendered":"WordPress\u3067\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u304c\u8a2d\u5b9a\u3067\u304d\u306a\u3044\u539f\u56e0\u3068\u89e3\u6c7a\u6cd55\u9078"},"content":{"rendered":"\n<div class=\"say right\">\n<div class=\"chatting\">\n<div class=\"sc\">\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3092\u8a2d\u5b9a\u3057\u305f\u3044\u306e\u306b\u3001\u8a2d\u5b9a\u3059\u308b\u5834\u6240\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u2026\u753b\u50cf\u3092\u9078\u3093\u3067\u3082\u4fdd\u5b58\u3067\u304d\u306a\u3044\u2026\u3069\u3046\u3057\u3066\uff1f<\/div>\n<\/div>\n<p class=\"faceicon\"><img decoding=\"async\" src=\"\/knowledge\/wp-content\/themes\/sango-theme-child\/library\/images\/moya.png\" width=\"110\"><span><\/span><\/p>\n<\/p><\/div>\n<p>WordPress\u3067\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u304c\u8a2d\u5b9a\u3067\u304d\u306a\u3044\u539f\u56e0\u306f\u3001\u5b9f\u306f\u3044\u304f\u3064\u304b\u306e\u30d1\u30bf\u30fc\u30f3\u306b\u5206\u304b\u308c\u307e\u3059\u3002\u300c\u8a2d\u5b9a\u6b04\u304c\u898b\u5f53\u305f\u3089\u306a\u3044\u300d\u306e\u304b\u300c\u8a2d\u5b9a\u6b04\u306f\u3042\u308b\u3051\u3069\u753b\u50cf\u3092\u9078\u3079\u306a\u3044\u30fb\u4fdd\u5b58\u3067\u304d\u306a\u3044\u300d\u306e\u304b\u3001\u75c7\u72b6\u306b\u3088\u3063\u3066\u76f4\u3057\u65b9\u304c\u307e\u3063\u305f\u304f\u9055\u3046\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u5b9f\u969b\u306bWordPress\u3067\u691c\u8a3c\u3057\u306a\u304c\u3089\u3001\u3064\u307e\u305a\u304d\u3084\u3059\u3044\u30dd\u30a4\u30f3\u30c8\u3092\u9806\u756a\u306b\u89e3\u6d88\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u81ea\u5206\u306e\u75c7\u72b6\u304c\u3069\u306e\u30bf\u30a4\u30d7\u304b\u3092\u5207\u308a\u5206\u3051\u3089\u308c\u308b<\/li>\n<li>\u539f\u56e0\u5225\u306b5\u3064\u306e\u89e3\u6c7a\u6cd5\u3092\u8a66\u3057\u3066\u8a2d\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b<\/li>\n<li>\u300c\u8868\u793a\u3055\u308c\u306a\u3044\u300d\u300c\u898b\u5207\u308c\u308b\u300d\u3068\u3044\u3063\u305f\u95a2\u9023\u30c8\u30e9\u30d6\u30eb\u3082\u89e3\u6d88\u3067\u304d\u308b<\/li>\n<\/ul>\n<h2 id=\"symptom-check\">\u307e\u305a\u306f\u75c7\u72b6\u3092\u5207\u308a\u5206\u3051\u3088\u3046\uff08\u3042\u306a\u305f\u306f\u3069\u306e\u30bf\u30a4\u30d7\uff1f\uff09<\/h2>\n<p>\u7d50\u8ad6\u304b\u3089\u8a00\u3046\u3068\u3001\u89e3\u6c7a\u306e\u524d\u306b<strong>\u300c\u81ea\u5206\u306f\u3069\u306e\u75c7\u72b6\u304b\u300d\u3092\u5207\u308a\u5206\u3051\u308b<\/strong>\u3053\u3068\u304c\u6700\u77ed\u30eb\u30fc\u30c8\u3067\u3059\u3002\u540c\u3058\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u304c\u8a2d\u5b9a\u3067\u304d\u306a\u3044\u300d\u3067\u3082\u3001\u539f\u56e0\u306e\u30b0\u30eb\u30fc\u30d7\u304c\u307e\u3063\u305f\u304f\u7570\u306a\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>\u307e\u305a\u306f\u6b21\u306e3\u30bf\u30a4\u30d7\u306e\u3046\u3061\u3001\u81ea\u5206\u304c\u3069\u308c\u306b\u5f53\u3066\u306f\u307e\u308b\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 id=\"i-1\">\u8a2d\u5b9a\u6b04\uff08\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u30d1\u30cd\u30eb\uff09\u304c\u300c\u305d\u3082\u305d\u3082\u51fa\u306a\u3044\u300d\u5834\u5408<\/h3>\n<p>\u6295\u7a3f\u3084\u56fa\u5b9a\u30da\u30fc\u30b8\u306e\u7de8\u96c6\u753b\u9762\u3092\u958b\u3044\u3066\u3082\u3001<strong>\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u300d\u3092\u8a2d\u5b9a\u3059\u308b\u6b04\u305d\u306e\u3082\u306e\u304c\u898b\u5f53\u305f\u3089\u306a\u3044<\/strong>\u72b6\u614b\u3067\u3059\u3002\u6b21\u306e\u3088\u3046\u306a\u75c7\u72b6\u304c\u5f53\u3066\u306f\u307e\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u7de8\u96c6\u753b\u9762\u306e\u3069\u3053\u3092\u63a2\u3057\u3066\u3082\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u300d\u306e\u9805\u76ee\u304c\u306a\u3044<\/li>\n<li>\u4ee5\u524d\u306f\u3042\u3063\u305f\u306e\u306b\u3001\u3044\u3064\u306e\u9593\u306b\u304b\u8868\u793a\u3055\u308c\u306a\u304f\u306a\u3063\u305f<\/li>\n<li>\u7279\u5b9a\u306e\u6295\u7a3f\u30bf\u30a4\u30d7\uff08\u30ab\u30b9\u30bf\u30e0\u6295\u7a3f\u306a\u3069\uff09\u3067\u3060\u3051\u6b04\u304c\u51fa\u306a\u3044<\/li>\n<\/ul>\n<p>\u3053\u306e\u30bf\u30a4\u30d7\u306f\u3001<strong>\u8868\u793a\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u8a2d\u5b9a\u30fb\u30c6\u30fc\u30de\u306e\u975e\u5bfe\u5fdc\u30fb\u30ab\u30b9\u30bf\u30e0\u6295\u7a3f\u30bf\u30a4\u30d7\u306e\u8a2d\u5b9a<\/strong>\u306e\u3044\u305a\u308c\u304b\u304c\u539f\u56e0\u3067\u3059\uff08\u539f\u56e01\u301c\u539f\u56e03\uff09\u3002<\/p>\n<h3 id=\"i-2\">\u8a2d\u5b9a\u6b04\u306f\u3042\u308b\u304c\u300c\u753b\u50cf\u3092\u9078\u3079\u306a\u3044\u30fb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3067\u304d\u306a\u3044\u300d\u5834\u5408<\/h3>\n<p>\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u300d\u306e\u6b04\u306f\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306e\u306b\u3001<strong>\u753b\u50cf\u3092\u9078\u3093\u3060\u308a\u4fdd\u5b58\u3057\u305f\u308a\u3067\u304d\u306a\u3044<\/strong>\u72b6\u614b\u3067\u3059\u3002\u6b21\u306e\u3088\u3046\u306a\u75c7\u72b6\u304c\u5f53\u3066\u306f\u307e\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3092\u8a2d\u5b9a\u300d\u3092\u62bc\u3057\u3066\u3082\u30e1\u30c7\u30a3\u30a2\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u753b\u50cf\u304c\u9078\u3079\u306a\u3044<\/li>\n<li>\u753b\u50cf\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308b<\/li>\n<li>\u300cHTTP\u30a8\u30e9\u30fc\u300d\u300c\u30b5\u30a4\u30ba\u304c\u4e0a\u9650\u3092\u8d85\u3048\u3066\u3044\u307e\u3059\u300d\u306a\u3069\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u51fa\u308b<\/li>\n<\/ul>\n<p>\u3053\u306e\u30bf\u30a4\u30d7\u306f\u3001\u591a\u304f\u306e\u5834\u5408<strong>\u753b\u50cf\u306e\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u81ea\u4f53<\/strong>\u3067\u3064\u307e\u305a\u3044\u3066\u3044\u307e\u3059\uff08\u539f\u56e04\uff09\u3002\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u4e0a\u9650\u3084\u30d5\u30a9\u30eb\u30c0\u306e\u6a29\u9650\u304c\u539f\u56e0\u3067\u3059\u3002<\/p>\n<h3 id=\"i-3\">\u8a2d\u5b9a\u3057\u305f\u306e\u306b\u300c\u6295\u7a3f\u4e00\u89a7\u3084\u30b5\u30a4\u30c8\u4e0a\u306b\u8868\u793a\u3055\u308c\u306a\u3044\u300d\u5834\u5408<\/h3>\n<p>\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u8a2d\u5b9a\u306f\u5b8c\u4e86\u3057\u3066\u3044\u308b\u306e\u306b\u3001<strong>\u8a18\u4e8b\u4e00\u89a7\u3084\u30b5\u30a4\u30c8\u4e0a\u3067\u753b\u50cf\u304c\u51fa\u306a\u3044\u30fb\u898b\u5207\u308c\u308b<\/strong>\u72b6\u614b\u3067\u3059\u3002\u6b21\u306e\u3088\u3046\u306a\u75c7\u72b6\u304c\u5f53\u3066\u306f\u307e\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u7de8\u96c6\u753b\u9762\u3067\u306f\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u306e\u306b\u3001\u30b5\u30a4\u30c8\u306b\u306f\u8868\u793a\u3055\u308c\u306a\u3044<\/li>\n<li>\u8868\u793a\u306f\u3055\u308c\u308b\u304c\u3001\u30b5\u30a4\u30ba\u304c\u5408\u308f\u305a\u898b\u5207\u308c\u308b\u30fb\u5f15\u304d\u4f38\u3070\u3055\u308c\u308b<\/li>\n<li>\u30c6\u30fc\u30de\u3092\u5909\u3048\u305f\u3042\u3068\u304b\u3089\u30b5\u30e0\u30cd\u30a4\u30eb\u3060\u3051\u5d29\u308c\u305f<\/li>\n<\/ul>\n<p>\u3053\u306e\u30bf\u30a4\u30d7\u306f\u3001<strong>\u30c6\u30fc\u30de\u306e\u975e\u5bfe\u5fdc<\/strong>\uff08\u539f\u56e02\uff09\u304b\u3001<strong>\u8868\u793a\u30b5\u30a4\u30ba\u306e\u4e0d\u4e00\u81f4\u30fb\u30b5\u30e0\u30cd\u30a4\u30eb\u306e\u672a\u518d\u751f\u6210<\/strong>\uff08\u539f\u56e05\uff09\u304c\u539f\u56e0\u3067\u3059\u3002<\/p>\n<p>\u4e0b\u306e\u5bfe\u5fdc\u8868\u3067\u3001\u81ea\u5206\u306e\u75c7\u72b6\u306b\u3044\u3061\u3070\u3093\u8fd1\u3044\u3082\u306e\u3092\u63a2\u3057\u3001\u53f3\u5074\u306e\u30ea\u30f3\u30af\u304b\u3089\u8a72\u5f53\u3059\u308b\u539f\u56e0\u30bb\u30af\u30b7\u30e7\u30f3\u3078\u9032\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<div style=\"overflow-x:auto;\">\n<table>\n<thead>\n<tr>\n<th>\u75c7\u72b6<\/th>\n<th>\u60f3\u5b9a\u3055\u308c\u308b\u539f\u56e0<\/th>\n<th>\u8a72\u5f53\u3059\u308b\u89e3\u6c7a\u6cd5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u7de8\u96c6\u753b\u9762\u306b\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u300d\u306e\u6b04\u304c\u898b\u5f53\u305f\u3089\u306a\u3044<\/td>\n<td>\u8868\u793a\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u304c\u30aa\u30d5\u306b\u306a\u3063\u3066\u3044\u308b\uff0f\u30d1\u30cd\u30eb\u304c\u96a0\u308c\u3066\u3044\u308b<\/td>\n<td><a href=\"#cause1\">\u539f\u56e01\u3078<\/a><\/td>\n<\/tr>\n<tr>\n<td>\u6b04\u3082\u306a\u304f\u3001\u8a2d\u5b9a\u3057\u3066\u3082\u30b5\u30a4\u30c8\u306b\u8868\u793a\u3055\u308c\u306a\u3044<\/td>\n<td>\u30c6\u30fc\u30de\u304c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044<\/td>\n<td><a href=\"#cause2\">\u539f\u56e02\u3078<\/a><\/td>\n<\/tr>\n<tr>\n<td>\u6295\u7a3f\u30fb\u56fa\u5b9a\u30da\u30fc\u30b8\u3067\u306f\u51fa\u308b\u306e\u306b\u7279\u5b9a\u306e\u6295\u7a3f\u30bf\u30a4\u30d7\u3060\u3051\u6b04\u304c\u51fa\u306a\u3044<\/td>\n<td>\u30ab\u30b9\u30bf\u30e0\u6295\u7a3f\u30bf\u30a4\u30d7\u304c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044<\/td>\n<td><a href=\"#cause3\">\u539f\u56e03\u3078<\/a><\/td>\n<\/tr>\n<tr>\n<td>\u753b\u50cf\u3092\u9078\u3079\u306a\u3044\uff0f\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3067\u30a8\u30e9\u30fc\u306b\u306a\u308b<\/td>\n<td>\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u4e0a\u9650\u8d85\u904e\u30fb\u30d5\u30a9\u30eb\u30c0\u6a29\u9650\u3067\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u304c\u5f3e\u304b\u308c\u3066\u3044\u308b<\/td>\n<td><a href=\"#cause4\">\u539f\u56e04\u3078<\/a><\/td>\n<\/tr>\n<tr>\n<td>\u8a2d\u5b9a\u306f\u3067\u304d\u308b\u304c\u8868\u793a\u304c\u898b\u5207\u308c\u308b\u30fb\u5927\u304d\u3059\u304e\u308b\u30fb\u5d29\u308c\u308b<\/td>\n<td>\u8868\u793a\u30b5\u30a4\u30ba\u304c\u5408\u3063\u3066\u3044\u306a\u3044\uff0f\u30b5\u30e0\u30cd\u30a4\u30eb\u304c\u518d\u751f\u6210\u3055\u308c\u3066\u3044\u306a\u3044<\/td>\n<td><a href=\"#cause5\">\u539f\u56e05\u3078<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"say left\">\n<p class=\"faceicon\"><img decoding=\"async\" src=\"\/knowledge\/wp-content\/themes\/sango-theme-child\/library\/images\/hyahho.png\" width=\"110\"><span><\/span><\/p>\n<div class=\"chatting\">\n<div class=\"sc\">\u5f53\u3066\u306f\u307e\u308b\u75c7\u72b6\u306e\u30ea\u30f3\u30af\u3092\u30bf\u30c3\u30d7\u3059\u308c\u3070\u3001\u305d\u306e\u539f\u56e0\u306e\u89e3\u8aac\u307e\u3067\u4e00\u6c17\u306b\u30b8\u30e3\u30f3\u30d7\u3067\u304d\u308b\u3088\u3002\u8907\u6570\u5f53\u3066\u306f\u307e\u308a\u305d\u3046\u306a\u3089\u3001\u4e0a\u304b\u3089\u9806\u756a\u306b\u8a66\u3059\u306e\u304c\u304a\u3059\u3059\u3081\uff01<\/div>\n<\/div><\/div>\n<h2 id=\"cause1\">\u539f\u56e01\uff1a\u6295\u7a3f\u753b\u9762\u306e\u300c\u8868\u793a\u30aa\u30d7\u30b7\u30e7\u30f3\u300d\u3067\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u304c\u30aa\u30d5\u306b\u306a\u3063\u3066\u3044\u308b<\/h2>\n<p>\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u6b04\u304c\u898b\u5f53\u305f\u3089\u306a\u3044\u3068\u304d\u3001\u3082\u3063\u3068\u3082\u591a\u3044\u306e\u304c<strong>\u8868\u793a\u306e\u8a2d\u5b9a\u3067\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u304c\u975e\u8868\u793a\u306b\u306a\u3063\u3066\u3044\u308b<\/strong>\u30b1\u30fc\u30b9\u3067\u3059\u3002\u30c6\u30fc\u30de\u306f\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u306e\u306b\u3001\u7de8\u96c6\u753b\u9762\u5074\u3067\u6b04\u304c\u96a0\u308c\u3066\u3044\u308b\u3060\u3051\u3001\u3068\u3044\u3046\u72b6\u614b\u3067\u3059\u3002<\/p>\n<p>WordPress\u306e\u30a8\u30c7\u30a3\u30bf\u306b\u306f\u300c\u753b\u9762\u306b\u4f55\u3092\u8868\u793a\u3059\u308b\u304b\u300d\u3092\u5207\u308a\u66ff\u3048\u308b\u8a2d\u5b9a\u304c\u3042\u308a\u3001\u3053\u3053\u3067\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u304c\u30aa\u30d5\u306b\u306a\u3063\u3066\u3044\u308b\u3068\u6b04\u304c\u51fa\u3066\u304d\u307e\u305b\u3093\u3002\u4f7f\u3063\u3066\u3044\u308b\u30a8\u30c7\u30a3\u30bf\u306b\u3088\u3063\u3066\u76f4\u3057\u65b9\u304c\u5909\u308f\u308b\u305f\u3081\u3001\u9806\u756a\u306b\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h3 id=\"i-5\">\u30d6\u30ed\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\u306e\u5834\u5408\uff1a\u53f3\u30b5\u30a4\u30c9\u30d1\u30cd\u30eb\u304c\u96a0\u308c\u3066\u3044\u308b\uff0f\u30bf\u30d6\u304c\u9589\u3058\u3066\u3044\u308b<\/h3>\n<p>\u30d6\u30ed\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\uff08\u73fe\u5728\u306e\u6a19\u6e96\u30a8\u30c7\u30a3\u30bf\uff09\u3067\u306f\u3001\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u6b04\u306f<strong>\u753b\u9762\u53f3\u5074\u306e\u8a2d\u5b9a\u30b5\u30a4\u30c9\u30d0\u30fc<\/strong>\u306b\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30b5\u30a4\u30c9\u30d0\u30fc\u304c\u9589\u3058\u3066\u3044\u308b\u3068\u3001\u6b04\u3054\u3068\u898b\u3048\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306bWordPress\u3067\u78ba\u8a8d\u3057\u305f\u3068\u3053\u308d\u3001\u6b21\u306e\u624b\u9806\u3067\u8868\u793a\u3067\u304d\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u7de8\u96c6\u753b\u9762\u306e\u53f3\u4e0a\u306b\u3042\u308b<strong>\u6b6f\u8eca\u30a2\u30a4\u30b3\u30f3\uff08\u8a2d\u5b9a\uff09<\/strong>\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001\u53f3\u5074\u306e\u30b5\u30a4\u30c9\u30d0\u30fc\u3092\u958b\u304d\u307e\u3059<\/li>\n<li>\u30b5\u30a4\u30c9\u30d0\u30fc\u4e0a\u90e8\u306e<strong>\u300c\u6295\u7a3f\u300d\u30bf\u30d6<\/strong>\u3092\u9078\u3073\u307e\u3059\uff08\u300c\u30d6\u30ed\u30c3\u30af\u300d\u30bf\u30d6\u306b\u306a\u3063\u3066\u3044\u308b\u3068\u8868\u793a\u3055\u308c\u307e\u305b\u3093\uff09<\/li>\n<li>\u300c\u6295\u7a3f\u300d\u30bf\u30d6\u5185\u306e<strong>\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u300d<\/strong>\u30d1\u30cd\u30eb\u3092\u958b\u304d\u307e\u3059<\/li>\n<\/ol>\n<p>\u305d\u308c\u3067\u3082\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u300d\u30d1\u30cd\u30eb\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u306f\u3001\u753b\u9762\u53f3\u4e0a\u306e<strong>\u30aa\u30d7\u30b7\u30e7\u30f3\uff08\u7e26\u4e09\u70b9\u30a2\u30a4\u30b3\u30f3\uff09\u2192\u300c\u8a2d\u5b9a\u300d\u2192\u300c\u30d1\u30cd\u30eb\u300d<\/strong>\u3067\u3001\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u8868\u793a\u304c\u30aa\u30f3\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<figure><a href=\"https:\/\/rakkoserver.com\/plus\/wp-content\/uploads\/2026\/07\/img01_eyecatch_panel-1.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/rakkoserver.com\/plus\/wp-content\/uploads\/2026\/07\/img01_eyecatch_panel-1.jpg\" alt=\"WordPress\u6295\u7a3f\u7de8\u96c6\u753b\u9762\u2014\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u8a2d\u5b9a\u30d1\u30cd\u30eb\u4f4d\u7f6e\" width=\"880\"><\/a><figcaption>\u25b2 \u30d6\u30ed\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\uff1a\u53f3\u30b5\u30a4\u30c9\u30d1\u30cd\u30eb\u300c\u6295\u7a3f\u300d\u30bf\u30d6\u5185\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u6b04<\/figcaption><\/figure>\n<h3 id=\"i-6\">\u65e7\u30a8\u30c7\u30a3\u30bf\uff08\u30af\u30e9\u30b7\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\uff09\u306e\u5834\u5408\uff1a\u8868\u793a\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u308b<\/h3>\n<p>Classic Editor\uff08\u30af\u30e9\u30b7\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\uff09\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u753b\u9762\u53f3\u4e0a\u306e<strong>\u300c\u8868\u793a\u30aa\u30d7\u30b7\u30e7\u30f3\u300d<\/strong>\u304b\u3089\u8868\u793a\u3092\u5207\u308a\u66ff\u3048\u307e\u3059\u3002\u624b\u9806\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>\u6295\u7a3f\u307e\u305f\u306f\u56fa\u5b9a\u30da\u30fc\u30b8\u306e\u7de8\u96c6\u753b\u9762\u3092\u958b\u304d\u307e\u3059<\/li>\n<li>\u753b\u9762\u53f3\u4e0a\u306e<strong>\u300c\u8868\u793a\u30aa\u30d7\u30b7\u30e7\u30f3\u300d<\/strong>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059<\/li>\n<li>\u8868\u793a\u3055\u308c\u305f\u9805\u76ee\u306e\u4e2d\u3067<strong>\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u300d<\/strong>\u306b\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u307e\u3059<\/li>\n<\/ol>\n<p>\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u308b\u3068\u3001\u753b\u9762\u53f3\u4e0b\uff08\u307e\u305f\u306f\u4e0b\u90e8\uff09\u306b\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u300d\u306e\u30d1\u30cd\u30eb\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3067\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3092\u8a2d\u5b9a\u300d\u304b\u3089\u753b\u50cf\u3092\u9078\u3079\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div class=\"memo \">\n<div class=\"memo_ttl dfont\"> MEMO<\/div>\n<p>\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u6b04\u306f\u3001<strong>\u4f7f\u3063\u3066\u3044\u308b\u30a8\u30c7\u30a3\u30bf\u306b\u3088\u3063\u3066\u5834\u6240\u304c\u9055\u3044\u307e\u3059<\/strong>\u3002<\/p>\n<p>\u30fb<strong>\u30d6\u30ed\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\uff1a<\/strong>\u753b\u9762\u53f3\u5074\u306e\u30b5\u30a4\u30c9\u30d0\u30fc\u300c\u6295\u7a3f\u300d\u30bf\u30d6\u5185<\/p>\n<p>\u30fb<strong>\u30af\u30e9\u30b7\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\uff1a<\/strong>\u300c\u8868\u793a\u30aa\u30d7\u30b7\u30e7\u30f3\u300d\u3067\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u308b\u3068\u53f3\u4e0b\uff0f\u4e0b\u90e8\u306b\u8868\u793a<\/p>\n<p>\u300c\u6b04\u304c\u898b\u5f53\u305f\u3089\u306a\u3044\u300d\u3068\u611f\u3058\u305f\u3089\u3001\u307e\u305a\u81ea\u5206\u304c\u3069\u3061\u3089\u306e\u30a8\u30c7\u30a3\u30bf\u3092\u4f7f\u3063\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3068\u65e9\u304f\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n<h2 id=\"cause2\">\u539f\u56e02\uff1a\u4f7f\u7528\u4e2d\u306e\u30c6\u30fc\u30de\u304c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044<\/h2>\n<p>\u8868\u793a\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u78ba\u8a8d\u3057\u3066\u3082\u6b04\u304c\u51fa\u3066\u3053\u306a\u3044\u3001\u3042\u308b\u3044\u306f\u8a2d\u5b9a\u3057\u3066\u3082\u30b5\u30a4\u30c8\u306b\u8868\u793a\u3055\u308c\u306a\u3044\u5834\u5408\u306f\u3001<strong>\u4f7f\u7528\u4e2d\u306e\u30c6\u30fc\u30de\u304c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044<\/strong>\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>WordPress\u3067\u306f\u3001\u30c6\u30fc\u30de\u5074\u304c\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3092\u4f7f\u3046\u300d\u3068\u5ba3\u8a00\u3057\u3066\u3044\u306a\u3044\u3068\u3001\u7de8\u96c6\u753b\u9762\u306b\u6b04\u304c\u51fa\u305a\u3001\u8868\u793a\u3082\u3055\u308c\u307e\u305b\u3093\u3002\u3068\u304f\u306b\u81ea\u4f5c\u30c6\u30fc\u30de\u3084\u53e4\u3044\u30c6\u30fc\u30de\u3067\u8d77\u3053\u308a\u3084\u3059\u3044\u539f\u56e0\u3067\u3059\u3002<\/p>\n<h3 id=\"i-8\">\u30c6\u30fc\u30de\u304c post-thumbnails \u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>\u30c6\u30fc\u30de\u304c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b\u306f\u3001<strong>\u30c6\u30fc\u30de\u306e <code>functions.php<\/code> \u306b <code>add_theme_support('post-thumbnails')<\/code> \u3068\u3044\u3046\u8a18\u8ff0\u304c\u3042\u308b\u304b<\/strong>\u3067\u5224\u65ad\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u8a18\u8ff0\u304c\u3042\u308c\u3070\u5bfe\u5fdc\u6e08\u307f\u3001\u306a\u3051\u308c\u3070\u672a\u5bfe\u5fdc\u3067\u3059\u3002<\/p>\n<p>\u5e02\u8ca9\u306e\u6709\u540d\u30c6\u30fc\u30de\uff08SANGO\u30fbCocoon\u30fbLightning\u306a\u3069\uff09\u306f\u307b\u307c\u5bfe\u5fdc\u6e08\u307f\u306a\u306e\u3067\u3001\u305d\u306e\u5834\u5408\u306f\u5225\u306e\u539f\u56e0\uff08<a href=\"#cause1\">\u539f\u56e01<\/a>\u3084<a href=\"#cause5\">\u539f\u56e05<\/a>\uff09\u3092\u7591\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u4e00\u65b9\u3001\u77e5\u4eba\u3084\u5236\u4f5c\u4f1a\u793e\u304c\u4f5c\u3063\u305f\u72ec\u81ea\u30c6\u30fc\u30de\u3067\u306f\u3001\u3053\u306e\u5ba3\u8a00\u304c\u629c\u3051\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3 id=\"i-9\">functions.php \u306b add_theme_support \u3092\u8ffd\u8a18\u3057\u3066\u6709\u52b9\u5316\u3059\u308b<\/h3>\n<p>\u30c6\u30fc\u30de\u304c\u672a\u5bfe\u5fdc\u3060\u3063\u305f\u5834\u5408\u306f\u3001<strong><code>functions.php<\/code> \u306b <code>add_theme_support('post-thumbnails')<\/code> \u3092\u8ffd\u8a18<\/strong>\u3057\u3066\u6709\u52b9\u5316\u3057\u307e\u3059\u3002WordPress.org\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u3088\u308b\u3068\u3001\u3053\u306e\u95a2\u6570\u306f<strong><code>after_setup_theme<\/code> \u30d5\u30c3\u30af\u306e\u4e2d\u3067\uff08\u3064\u307e\u308a <code>init<\/code> \u3088\u308a\u524d\u306b\uff09\u5b9f\u884c\u3059\u308b<\/strong>\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5177\u4f53\u7684\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<pre><code>function mytheme_setup() {\n    add_theme_support( 'post-thumbnails' );\n}\nadd_action( 'after_setup_theme', 'mytheme_setup' );<\/code><\/pre>\n<p>\u3059\u3067\u306b <code>after_setup_theme<\/code> \u30d5\u30c3\u30af\u3092\u4f7f\u3063\u305f\u8a2d\u5b9a\u95a2\u6570\u304c\u30c6\u30fc\u30de\u306b\u3042\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u95a2\u6570\u306e\u4e2d\u306b <code>add_theme_support( 'post-thumbnails' );<\/code> \u306e1\u884c\u3092\u8ffd\u52a0\u3059\u308b\u3060\u3051\u3067\u69cb\u3044\u307e\u305b\u3093\u3002\u4fdd\u5b58\u5f8c\u3001\u7de8\u96c6\u753b\u9762\u306b\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u6b04\u304c\u8868\u793a\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<figure><a href=\"https:\/\/rakkoserver.com\/plus\/wp-content\/uploads\/2026\/06\/img02_functions_php.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/rakkoserver.com\/plus\/wp-content\/uploads\/2026\/06\/img02_functions_php.jpg\" alt=\"WordPress\u30c6\u30fc\u30de\u30d5\u30a1\u30a4\u30eb\u7de8\u96c6\u753b\u9762\u2014add_theme_support\u306e\u8ffd\u8a18\u7b87\u6240\" width=\"880\"><\/a><figcaption>\u25b2 \u30c6\u30fc\u30de\u30a8\u30c7\u30a3\u30bf\uff1aadd_theme_support(\u2018post-thumbnails\u2019)\u306e\u8ffd\u8a18\u7b87\u6240<\/figcaption><\/figure>\n<div class=\"memo alert\">\n<div class=\"memo_ttl dfont\"> \u6ce8\u610f<\/div>\n<p><code>functions.php<\/code> \u306f\u30b5\u30a4\u30c8\u5168\u4f53\u306e\u52d5\u4f5c\u3092\u5de6\u53f3\u3059\u308b\u91cd\u8981\u306a\u30d5\u30a1\u30a4\u30eb\u3067\u3059\u30021\u6587\u5b57\u3067\u3082\u9593\u9055\u3048\u308b\u3068<strong>\u30b5\u30a4\u30c8\u5168\u4f53\u304c\u771f\u3063\u767d\u306b\u306a\u308a\u3001\u7ba1\u7406\u753b\u9762\u306b\u3082\u5165\u308c\u306a\u304f\u306a\u308b<\/strong>\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u7de8\u96c6\u3059\u308b\u524d\u306b\u3001\u5fc5\u305a<strong>\u5b50\u30c6\u30fc\u30de\u3067\u4f5c\u696d<\/strong>\u3057\u3001<strong>\u30d5\u30a1\u30a4\u30eb\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7<\/strong>\u3092\u53d6\u3063\u3066\u304b\u3089\u884c\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u53ef\u80fd\u3067\u3042\u308c\u3070\u3001\u7ba1\u7406\u753b\u9762\u306e\u30c6\u30fc\u30de\u30a8\u30c7\u30a3\u30bf\u3067\u306f\u306a\u304f\u3001FTP\u3084\u30b5\u30fc\u30d0\u30fc\u306e\u30d5\u30a1\u30a4\u30eb\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u304b\u3089\u7de8\u96c6\u3059\u308b\u3068\u3001\u4e07\u4e00\u306e\u3068\u304d\u306b\u5143\u3078\u623b\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n<div class=\"say left\">\n<p class=\"faceicon\"><img decoding=\"async\" src=\"\/knowledge\/wp-content\/themes\/sango-theme-child\/library\/images\/hakase.png\" width=\"110\"><span><\/span><\/p>\n<div class=\"chatting\">\n<div class=\"sc\"><code>add_theme_support( 'post-thumbnails' )<\/code> \u306f\u30c6\u30fc\u30de\u306e\u521d\u671f\u5316\u6642\u306b\u8aad\u307f\u8fbc\u307e\u305b\u308b\u5fc5\u8981\u304c\u3042\u308b\u3093\u3058\u3083\u3002\u3060\u304b\u3089 <code>after_setup_theme<\/code> \u30d5\u30c3\u30af\u306e\u4e2d\u306b\u66f8\u304f\u306e\u304c\u57fa\u672c\u3002\u672c\u6587\u306e\u9014\u4e2d\u3084\u30d5\u30c3\u30af\u306e\u5916\u306b\u66f8\u304f\u3068\u6b63\u3057\u304f\u52d5\u304b\u306a\u3044\u3053\u3068\u3082\u3042\u308b\u304b\u3089\u6c17\u3092\u3064\u3051\u308b\u3093\u3058\u3083\u3088\u3002<\/div>\n<\/div><\/div>\n<h2 id=\"cause3\">\u539f\u56e03\uff1a\u30ab\u30b9\u30bf\u30e0\u6295\u7a3f\u30bf\u30a4\u30d7\u304c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044<\/h2>\n<p>\u300c\u901a\u5e38\u306e\u6295\u7a3f\u3084\u56fa\u5b9a\u30da\u30fc\u30b8\u3067\u306f\u6b04\u304c\u51fa\u308b\u306e\u306b\u3001\u7279\u5b9a\u306e\u6295\u7a3f\u30bf\u30a4\u30d7\u3060\u3051\u51fa\u306a\u3044\u300d\u3068\u3044\u3046\u5834\u5408\u306f\u3001<strong>\u305d\u306e\u30ab\u30b9\u30bf\u30e0\u6295\u7a3f\u30bf\u30a4\u30d7\u304c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044<\/strong>\u3053\u3068\u304c\u539f\u56e0\u3067\u3059\u3002<\/p>\n<p>\u30ab\u30b9\u30bf\u30e0\u6295\u7a3f\u30bf\u30a4\u30d7\u3068\u306f\u3001\u300c\u6295\u7a3f\u300d\u300c\u56fa\u5b9a\u30da\u30fc\u30b8\u300d\u3068\u306f\u5225\u306b\u4f5c\u3089\u308c\u305f\u72ec\u81ea\u306e\u6295\u7a3f\u306e\u7a2e\u985e\uff08\u4f8b\uff1a\u300c\u304a\u77e5\u3089\u305b\u300d\u300c\u88fd\u54c1\u300d\u300c\u5b9f\u7e3e\u300d\u306a\u3069\uff09\u306e\u3053\u3068\u3067\u3059\u3002\u6295\u7a3f\u30bf\u30a4\u30d7\u3054\u3068\u306b\u300c\u3069\u306e\u6a5f\u80fd\u3092\u4f7f\u3046\u304b\u300d\u3092\u500b\u5225\u306b\u6307\u5b9a\u3059\u308b\u305f\u3081\u3001\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3 id=\"i-11\">\u56fa\u5b9a\u30da\u30fc\u30b8\u30fb\u6295\u7a3f\u3067\u306f\u51fa\u308b\u306e\u306b\u7279\u5b9a\u306e\u6295\u7a3f\u30bf\u30a4\u30d7\u3060\u3051\u51fa\u306a\u3044\u30b1\u30fc\u30b9<\/h3>\n<p>\u307e\u305a\u306f\u5207\u308a\u5206\u3051\u3067\u3059\u3002<strong>\u901a\u5e38\u306e\u300c\u6295\u7a3f\u300d\u3067\u306f\u6b04\u304c\u51fa\u308b\u306e\u306b\u3001\u7279\u5b9a\u306e\u6295\u7a3f\u30bf\u30a4\u30d7\u3060\u3051\u51fa\u306a\u3044<\/strong>\u306a\u3089\u3001\u30c6\u30fc\u30de\u5074\uff08\u539f\u56e02\uff09\u3067\u306f\u306a\u304f\u3001\u305d\u306e\u6295\u7a3f\u30bf\u30a4\u30d7\u306e\u8a2d\u5b9a\u304c\u539f\u56e0\u3067\u3059\u3002\u30c6\u30fc\u30de\u304c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308c\u3070\u3001\u901a\u5e38\u306e\u6295\u7a3f\u306b\u306f\u6b04\u304c\u51fa\u308b\u306f\u305a\u3060\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u30ab\u30b9\u30bf\u30e0\u6295\u7a3f\u30bf\u30a4\u30d7\u306f\u3001<a href=\"https:\/\/rakkoserver.com\/plus\/wordpress\/wordpress-custom-post-type\/\" target=\"_blank\" rel=\"noopener\">Custom Post Type UI<\/a>\u306a\u3069\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u4f5c\u3089\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u305d\u306e\u8a2d\u5b9a\u753b\u9762\u3067\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\uff08featured image\uff09\u306e\u9805\u76ee\u304c\u30aa\u30d5\u306b\u306a\u3063\u3066\u3044\u308b\u3068\u6b04\u304c\u51fa\u307e\u305b\u3093\u3002<\/p>\n<h3 id=\"i-12\">register_post_type \u306e supports \u306b thumbnail \u3092\u8ffd\u52a0\u3059\u308b<\/h3>\n<p>\u89e3\u6c7a\u6cd5\u306f\u3001<strong>\u305d\u306e\u30ab\u30b9\u30bf\u30e0\u6295\u7a3f\u30bf\u30a4\u30d7\u306e\u8a2d\u5b9a\u3067\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\uff08\u30b5\u30dd\u30fc\u30c8\uff09\u300d\u3092\u6709\u52b9\u306b\u3059\u308b<\/strong>\u3053\u3068\u3067\u3059\u3002\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u4f5c\u3063\u3066\u3044\u308b\u5834\u5408\u3068\u30b3\u30fc\u30c9\u3067\u4f5c\u3063\u3066\u3044\u308b\u5834\u5408\u3067\u64cd\u4f5c\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u30d7\u30e9\u30b0\u30a4\u30f3\uff08Custom Post Type UI\u306a\u3069\uff09\u3067\u4f5c\u3063\u3066\u3044\u308b\u5834\u5408\uff1a<\/strong>\u8a72\u5f53\u306e\u6295\u7a3f\u30bf\u30a4\u30d7\u306e\u7de8\u96c6\u753b\u9762\u3092\u958b\u304d\u3001<strong>\u300c\u30b5\u30dd\u30fc\u30c8\u300d<\/strong>\u306e\u9805\u76ee\u3067<strong>\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u300d<\/strong>\u306b\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u3066\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u30b3\u30fc\u30c9\uff08<code>register_post_type<\/code>\uff09\u3067\u4f5c\u3063\u3066\u3044\u308b\u5834\u5408\uff1a<\/strong>\u6295\u7a3f\u30bf\u30a4\u30d7\u3092\u767b\u9332\u3057\u3066\u3044\u308b <code>supports<\/code> \u306e\u914d\u5217\u306b <code>'thumbnail'<\/code> \u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<pre><code>register_post_type( 'product', array(\n    'supports' =&gt; array( 'title', 'editor', 'thumbnail' ),\n) );<\/code><\/pre>\n<figure><a href=\"https:\/\/rakkoserver.com\/plus\/wp-content\/uploads\/2026\/06\/img03_cptui_support.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/rakkoserver.com\/plus\/wp-content\/uploads\/2026\/06\/img03_cptui_support.jpg\" alt=\"\u30c6\u30fc\u30de\u30a8\u30c7\u30a3\u30bf\u2014register_post_type\u306esupports\u914d\u5217\u306bthumbnail\u3092\u8ffd\u52a0\" width=\"880\"><\/a><figcaption>\u25b2 \u30c6\u30fc\u30de\u30a8\u30c7\u30a3\u30bf\uff1aregister_post_type\u306e\u300csupports\u300d\u914d\u5217\u306b\u300cthumbnail\u300d\u3092\u8ffd\u52a0\u3059\u308b<\/figcaption><\/figure>\n<p><code>'thumbnail'<\/code> \u3092\u8ffd\u52a0\u3057\u3066\u4fdd\u5b58\u3059\u308b\u3068\u3001\u305d\u306e\u6295\u7a3f\u30bf\u30a4\u30d7\u306e\u7de8\u96c6\u753b\u9762\u306b\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u6b04\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u306a\u304a\u3001\u3053\u306e\u8a2d\u5b9a\u304c\u52b9\u304f\u306e\u306f<strong>\u30c6\u30fc\u30de\u5074\u304c <code>post-thumbnails<\/code> \u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u5834\u5408<\/strong>\u3067\u3059\u3002\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u3068\u304d\u306f\u3001\u5148\u306b<a href=\"#cause2\">\u539f\u56e02<\/a>\u3092\u89e3\u6c7a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2 id=\"cause4\">\u539f\u56e04\uff1a\u753b\u50cf\u306e\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u81ea\u4f53\u304c\u3067\u304d\u3066\u3044\u306a\u3044\uff08\u5bb9\u91cf\u30fb\u6a29\u9650\uff09<\/h2>\n<p>\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u6b04\u306f\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306e\u306b\u3001<strong>\u753b\u50cf\u3092\u9078\u3093\u3067\u3082\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3067\u304d\u306a\u3044\u30fb\u30a8\u30e9\u30fc\u306b\u306a\u308b<\/strong>\u5834\u5408\u306f\u3001\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u6a5f\u80fd\u3067\u306f\u306a\u304f<strong>\u753b\u50cf\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u305d\u306e\u3082\u306e<\/strong>\u3067\u3064\u307e\u305a\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u5834\u5408\u3001\u30e1\u30c7\u30a3\u30a2\u30e9\u30a4\u30d6\u30e9\u30ea\u3078\u306e\u901a\u5e38\u306e\u753b\u50cf\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3067\u3082\u540c\u3058\u30a8\u30e9\u30fc\u304c\u51fa\u308b\u306f\u305a\u3067\u3059\u3002\u539f\u56e0\u306f\u5927\u304d\u304f\u5206\u3051\u3066\u300c\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u4e0a\u9650\u8d85\u904e\u300d\u3068\u300c\u30d5\u30a9\u30eb\u30c0\u306e\u6a29\u9650\uff08\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\uff09\u300d\u306e2\u3064\u3067\u3059\u3002<\/p>\n<h3 id=\"i-14\">\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u304c\u4e0a\u9650\uff08\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u53ef\u80fd\u306a\u6700\u5927\u30b5\u30a4\u30ba\uff09\u3092\u8d85\u3048\u3066\u3044\u308b<\/h3>\n<p>WordPress\u306b\u306f<strong>\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3067\u304d\u308b\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u4e0a\u9650<\/strong>\u304c\u3042\u308a\u3001\u3053\u308c\u3092\u8d85\u3048\u308b\u753b\u50cf\u306f\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3067\u304d\u307e\u305b\u3093\u3002\u30b9\u30de\u30db\u3084\u30ab\u30e1\u30e9\u3067\u64ae\u3063\u305f\u9ad8\u753b\u8cea\u306a\u5199\u771f\u306f\u6570MB\u4ee5\u4e0a\u306b\u306a\u308b\u3053\u3068\u3082\u591a\u304f\u3001\u4e0a\u9650\u306b\u5f15\u3063\u304b\u304b\u308a\u304c\u3061\u3067\u3059\u3002<\/p>\n<p>\u73fe\u5728\u306e\u4e0a\u9650\u306f\u3001<strong>\u300c\u30e1\u30c7\u30a3\u30a2\u300d\u2192\u300c\u65b0\u898f\u8ffd\u52a0\u300d<\/strong>\u306e\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u753b\u9762\u3067\u300c\u6700\u5927\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u30b5\u30a4\u30ba\u300d\u3068\u3057\u3066\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u4e0a\u9650\u3092\u8d85\u3048\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u6b21\u306e\u3044\u305a\u308c\u304b\u3067\u5bfe\u51e6\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u753b\u50cf\u3092<strong>\u30ea\u30b5\u30a4\u30ba\u30fb\u5727\u7e2e<\/strong>\u3057\u3066\u3001\u4e0a\u9650\u4ee5\u4e0b\u306e\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306b\u3059\u308b<\/li>\n<li>\u30b5\u30fc\u30d0\u30fc\u5074\u3067<strong>\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u4e0a\u9650\uff08<code>upload_max_filesize<\/code> \u306a\u3069\uff09\u3092\u5f15\u304d\u4e0a\u3052\u308b<\/strong><\/li>\n<\/ul>\n<div class=\"memo \">\n<div class=\"memo_ttl dfont\"> MEMO<\/div>\n<p>\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u4e0a\u9650\u306f\u3001<strong>\u300c\u30e1\u30c7\u30a3\u30a2\u300d\u2192\u300c\u65b0\u898f\u8ffd\u52a0\u300d<\/strong>\u3092\u958b\u304f\u3068\u753b\u9762\u306b\u300c\u6700\u5927\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u30b5\u30a4\u30ba: \u25efMB\u300d\u3068\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u5024\u306f\u30b5\u30fc\u30d0\u30fc\u306ePHP\u8a2d\u5b9a\uff08<code>upload_max_filesize<\/code> \/ <code>post_max_size<\/code>\uff09\u3067\u6c7a\u307e\u308a\u307e\u3059\u3002\u591a\u304f\u306e\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067\u306f\u3001\u7ba1\u7406\u753b\u9762\uff08\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d1\u30cd\u30eb\uff09\u304b\u3089\u3053\u306e\u4e0a\u9650\u3092\u5909\u66f4\u3067\u304d\u307e\u3059\u3002\u307e\u305a\u306f\u73fe\u5728\u306e\u4e0a\u9650\u3092\u78ba\u8a8d\u3057\u3001\u753b\u50cf\u306e\u30b5\u30a4\u30ba\u3068\u6bd4\u3079\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n<h3 id=\"i-15\">\u30b5\u30fc\u30d0\u30fc\u306e\u30d5\u30a9\u30eb\u30c0\u6a29\u9650\uff08\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\uff09\u3067\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u304c\u5f3e\u304b\u308c\u3066\u3044\u308b<\/h3>\n<p>\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u304c\u4e0a\u9650\u5185\u306a\u306e\u306b\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001<strong>\u753b\u50cf\u306e\u4fdd\u5b58\u5148\u30d5\u30a9\u30eb\u30c0\u306e\u6a29\u9650\uff08\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\uff09<\/strong>\u304c\u539f\u56e0\u306e\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002WordPress\u304c\u753b\u50cf\u3092\u4fdd\u5b58\u3059\u308b <code>wp-content\/uploads<\/code> \u30d5\u30a9\u30eb\u30c0\u306b\u66f8\u304d\u8fbc\u307f\u6a29\u9650\u304c\u306a\u3044\u3068\u3001\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u304c\u5f3e\u304b\u308c\u307e\u3059\u3002<\/p>\n<p>\u300c\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u3092 \u25ef\u25ef \u306b\u79fb\u52d5\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u300d\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u304c\u51fa\u308b\u5834\u5408\u306f\u3001\u3053\u306e\u6a29\u9650\u306e\u554f\u984c\u304c\u7591\u308f\u308c\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u306e\u30d5\u30a1\u30a4\u30eb\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3084FTP\u30bd\u30d5\u30c8\u3067 <code>wp-content\/uploads<\/code> \u30d5\u30a9\u30eb\u30c0\u306e\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\u3092\u78ba\u8a8d\u3057\u3001\u9069\u5207\u306a\u5024\uff08\u4e00\u822c\u7684\u306b\u306f <code>755<\/code> \u306a\u3069\uff09\u306b\u8a2d\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u753b\u50cf\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u306e\u30a8\u30e9\u30fc\u306f\u539f\u56e0\u304c\u591a\u5c90\u306b\u308f\u305f\u308b\u305f\u3081\u3001\u75c7\u72b6\u5225\u306e\u8a73\u3057\u3044\u5bfe\u51e6\u6cd5\u306f<a href=\"https:\/\/rakkoserver.com\/plus\/wordpress\/wordpress-image-upload-error\/\" target=\"_blank\" rel=\"noopener\">\u3010WordPress\u3011\u753b\u50cf\u304c\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3067\u304d\u306a\u30447\u3064\u306e\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5<\/a>\u3067\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002\u3042\u308f\u305b\u3066\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2 id=\"cause5\">\u539f\u56e05\uff1a\u8a2d\u5b9a\u306f\u3067\u304d\u3066\u3044\u308b\u304c\u30b5\u30a4\u30ba\u304c\u5408\u308f\u305a\u300c\u898b\u5207\u308c\u308b\u30fb\u5927\u304d\u3059\u304e\u308b\u300d<\/h2>\n<p>\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u8a2d\u5b9a\u81ea\u4f53\u306f\u3067\u304d\u3066\u3044\u308b\u306e\u306b\u3001<strong>\u30b5\u30a4\u30c8\u3067\u898b\u5207\u308c\u308b\u30fb\u5927\u304d\u3059\u304e\u308b\u30fb\u5d29\u308c\u3066\u8868\u793a\u3055\u308c\u308b<\/strong>\u5834\u5408\u306f\u3001<strong>\u30c6\u30fc\u30de\u304c\u6c42\u3081\u308b\u30b5\u30a4\u30ba\u3068\u5b9f\u969b\u306e\u753b\u50cf\u30b5\u30a4\u30ba\u304c\u5408\u3063\u3066\u3044\u306a\u3044<\/strong>\u3053\u3068\u304c\u539f\u56e0\u3067\u3059\u3002<\/p>\n<p>\u300c\u8a2d\u5b9a\u3067\u304d\u306a\u3044\u300d\u3068\u3044\u3046\u3088\u308a\u300c\u6b63\u3057\u304f\u8868\u793a\u3055\u308c\u306a\u3044\u300d\u72b6\u614b\u3067\u3059\u304c\u3001\u3064\u307e\u305a\u304d\u3084\u3059\u3044\u30dd\u30a4\u30f3\u30c8\u306a\u306e\u3067\u89e3\u6c7a\u6cd5\u3092\u307e\u3068\u3081\u307e\u3059\u3002\u3068\u304f\u306b<strong>\u30c6\u30fc\u30de\u3092\u5909\u66f4\u3057\u305f\u76f4\u5f8c<\/strong>\u306b\u8d77\u3053\u308a\u3084\u3059\u3044\u30c8\u30e9\u30d6\u30eb\u3067\u3059\u3002<\/p>\n<h3 id=\"i-17\">\u30c6\u30fc\u30de\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u8868\u793a\u30b5\u30a4\u30ba\u3068\u753b\u50cf\u30b5\u30a4\u30ba\u306e\u95a2\u4fc2\uff08add_image_size\uff09<\/h3>\n<p>WordPress\u306e\u30c6\u30fc\u30de\u306f\u3001<code>add_image_size()<\/code> \u3068\u3044\u3046\u95a2\u6570\u3067<strong>\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u5c02\u7528\u306e\u8868\u793a\u30b5\u30a4\u30ba<\/strong>\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u300c\u8a18\u4e8b\u4e00\u89a7\u3067\u306f\u6a2a600px\u30fb\u7e26400px\u3067\u8868\u793a\u3059\u308b\u300d\u3068\u3044\u3063\u305f\u5177\u5408\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u3068\u304d\u3001\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u305f\u753b\u50cf\u304c\u30c6\u30fc\u30de\u306e\u60f3\u5b9a\u3059\u308b\u7e26\u6a2a\u6bd4\u3068\u5927\u304d\u304f\u9055\u3046\u3068\u3001\u30c8\u30ea\u30df\u30f3\u30b0\u3055\u308c\u3066\u898b\u5207\u308c\u305f\u308a\u3001\u5f15\u304d\u4f38\u3070\u3055\u308c\u3066\u5d29\u308c\u305f\u308a\u3057\u307e\u3059\u3002\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u9069\u6b63\u30b5\u30a4\u30ba\u306f<strong>\u6a2a\u5e451200px\u524d\u5f8c\u30fb\u7e26\u6a2a\u6bd416:9\uff08\u4f8b\uff1a1200\u00d7630px\uff09\u304c\u4e00\u822c\u7684\u306a\u76ee\u5b89<\/strong>\u3067\u3059\u304c\u3001<strong>\u6700\u9069\u306a\u30b5\u30a4\u30ba\u306f\u4f7f\u7528\u4e2d\u306e\u30c6\u30fc\u30de\u306e\u5b9a\u7fa9\u306b\u3088\u3063\u3066\u5909\u308f\u308b<\/strong>\u70b9\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 id=\"i-18\">\u30b5\u30e0\u30cd\u30a4\u30eb\u3092\u518d\u751f\u6210\u3057\u3066\u8868\u793a\u3092\u76f4\u3059<\/h3>\n<p>\u30c6\u30fc\u30de\u3092\u5909\u66f4\u3059\u308b\u3068\u3001\u65b0\u3057\u3044\u30c6\u30fc\u30de\u304c\u5b9a\u7fa9\u3059\u308b\u30b5\u30a4\u30ba\u306b\u5408\u308f\u305b\u3066<strong>\u30b5\u30e0\u30cd\u30a4\u30eb\uff08\u7e2e\u5c0f\u8868\u793a\u7528\u306e\u753b\u50cf\uff09\u3092\u4f5c\u308a\u76f4\u3059<\/strong>\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3068\u3053\u308d\u304c\u3001<strong>\u3059\u3067\u306b\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u6e08\u307f\u306e\u753b\u50cf\u306f\u81ea\u52d5\u3067\u306f\u4f5c\u308a\u76f4\u3055\u308c\u307e\u305b\u3093<\/strong>\u3002\u3053\u308c\u304c\u30c6\u30fc\u30de\u5909\u66f4\u5f8c\u306b\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u304c\u5d29\u308c\u308b\u4e3b\u306a\u7406\u7531\u3067\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306bWordPress\u3067\u78ba\u8a8d\u3057\u305f\u3068\u3053\u308d\u3001\u65b0\u898f\u306b\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u305f\u753b\u50cf\u306b\u306f\u65b0\u3057\u3044\u30b5\u30a4\u30ba\u304c\u81ea\u52d5\u3067\u9069\u7528\u3055\u308c\u308b\u4e00\u65b9\u3001\u65e2\u5b58\u306e\u753b\u50cf\u306f\u53e4\u3044\u30b5\u30a4\u30ba\u306e\u307e\u307e\u6b8b\u3063\u3066\u3044\u307e\u3057\u305f\u3002\u65e2\u5b58\u753b\u50cf\u306e\u30b5\u30e0\u30cd\u30a4\u30eb\u3092\u4f5c\u308a\u76f4\u3059\u306b\u306f\u3001<strong>\u30b5\u30e0\u30cd\u30a4\u30eb\u518d\u751f\u6210\u7528\u306e\u30d7\u30e9\u30b0\u30a4\u30f3<\/strong>\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li><a href=\"https:\/\/wordpress.org\/plugins\/regenerate-thumbnails\/\" target=\"_blank\" rel=\"noopener\">Regenerate Thumbnails\uff08WordPress.org\u516c\u5f0f\uff09<\/a>\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u6709\u52b9\u5316\u3057\u307e\u3059<\/li>\n<li>\u7ba1\u7406\u753b\u9762\u306e<strong>\u300c\u30c4\u30fc\u30eb\u300d\u2192\u300cRegenerate Thumbnails\u300d<\/strong>\u3092\u958b\u304d\u307e\u3059<\/li>\n<li><strong>\u300cRegenerate Thumbnails For All \u25ef\u25ef Attachments\u300d<\/strong>\u3092\u5b9f\u884c\u3057\u3001\u30b5\u30e0\u30cd\u30a4\u30eb\u3092\u518d\u751f\u6210\u3057\u307e\u3059<\/li>\n<\/ol>\n<p>\u518d\u751f\u6210\u304c\u5b8c\u4e86\u3059\u308b\u3068\u3001\u65e2\u5b58\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3082\u30c6\u30fc\u30de\u306e\u5b9a\u7fa9\u306b\u6cbf\u3063\u305f\u30b5\u30a4\u30ba\u3067\u8868\u793a\u3055\u308c\u3001\u898b\u5207\u308c\u3084\u5d29\u308c\u304c\u89e3\u6d88\u3055\u308c\u307e\u3059\u3002<\/p>\n<figure><a href=\"https:\/\/rakkoserver.com\/plus\/wp-content\/uploads\/2026\/07\/img04_article_list.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/rakkoserver.com\/plus\/wp-content\/uploads\/2026\/07\/img04_article_list.jpg\" alt=\"WordPress\u8a18\u4e8b\u4e00\u89a7\u2014\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u304c\u6b63\u3057\u304f\u8868\u793a\u3055\u308c\u305f\u72b6\u614b\" width=\"880\"><\/a><figcaption>\u25b2 \u30b5\u30e0\u30cd\u30a4\u30eb\u518d\u751f\u6210\u5f8c\uff1a\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u304c\u6b63\u3057\u3044\u30b5\u30a4\u30ba\u3067\u8868\u793a<\/figcaption><\/figure>\n<div class=\"say left\">\n<p class=\"faceicon\"><img decoding=\"async\" src=\"\/knowledge\/wp-content\/themes\/sango-theme-child\/library\/images\/hakase.png\" width=\"110\"><span><\/span><\/p>\n<div class=\"chatting\">\n<div class=\"sc\">Regenerate Thumbnails\u306f\u6700\u7d42\u66f4\u65b02025\u5e748\u6708\u30fb100\u4e07\u4ee5\u4e0a\u306e\u30b5\u30a4\u30c8\u3067\u4f7f\u308f\u308c\u3066\u3044\u308b\u5b9a\u756a\u30d7\u30e9\u30b0\u30a4\u30f3\u3058\u3083\u3002WordPress 6.8\u7cfb\u3067\u306e\u52d5\u4f5c\u3082\u78ba\u8a8d\u3055\u308c\u3066\u304a\u308b\u3002\u30c6\u30fc\u30de\u3092\u5909\u3048\u305f\u3042\u3068\u306b\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u304c\u5d29\u308c\u305f\u3089\u3001\u307e\u305a\u3053\u308c\u3067\u518d\u751f\u6210\u3057\u3066\u307f\u308b\u3068\u3088\u3044\u305e\u3002<\/div>\n<\/div><\/div>\n<div class=\"sng-box box26\">\n<div class=\"box-title\">\ud83d\udca1 \u753b\u50cf\u306e\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3067\u3064\u307e\u305a\u304f\u306a\u3089\u30b5\u30fc\u30d0\u30fc\u74b0\u5883\u3082\u898b\u76f4\u3057\u3092<\/div>\n<div class=\"box-content\">\n<p>\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u304c\u300c\u5bb9\u91cf\u30aa\u30fc\u30d0\u30fc\u300d\u300c\u6a29\u9650\u30a8\u30e9\u30fc\u300d\u3067\u8a2d\u5b9a\u3067\u304d\u306a\u3044\u3068\u304d\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u8a2d\u5b9a\u304c\u5f71\u97ff\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/rakkoserver.com\/\" target=\"_blank\" rel=\"nofollow sponsored\">\u30e9\u30c3\u30b3\u30b5\u30fc\u30d0\u30fc<\/a>\u306a\u3089\u3001WordPress\u3092\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u304d\u3001\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u4e0a\u9650\u306a\u3069\u306e\u521d\u671f\u8a2d\u5b9a\u3082\u306f\u3058\u3081\u304b\u3089\u4f59\u88d5\u3092\u6301\u3063\u305f\u69cb\u6210\u3002\u5bb9\u91cf\u3092\u6c17\u306b\u305b\u305a\u753b\u50cf\u3092\u6271\u3048\u307e\u3059\u3002<\/p>\n<p>\u6708\u984d330\u5186\u301c\u30fb10\u65e5\u9593\u306e\u7121\u6599\u304a\u8a66\u3057\u3082\u3042\u308b\u306e\u3067\u3001\u3053\u308c\u304b\u3089WordPress\u3092\u59cb\u3081\u308b\u65b9\u3082\u6c17\u8efd\u306b\u8a66\u305b\u307e\u3059\u3002<\/p>\n<div class=\"center\">\n<p>  <a href=\"https:\/\/rakkoserver.com\/\" class=\"btn raised main-bc strong\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">\u30e9\u30c3\u30b3\u30b5\u30fc\u30d0\u30fc\u3092\u8a73\u3057\u304f\u898b\u308b<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h2 id=\"faq\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3 id=\"i-20\">Q. WordPress\u3067\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3092\u5909\u66f4\u3059\u308b\u306b\u306f\uff1f<\/h3>\n<p>\u6295\u7a3f\u30fb\u56fa\u5b9a\u30da\u30fc\u30b8\u306e\u7de8\u96c6\u753b\u9762\u3092\u958b\u304d\u3001\u53f3\u5074\u307e\u305f\u306f\u4e0b\u90e8\u306e\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u300d\u6b04\u304b\u3089\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3092\u8a2d\u5b9a\u300d\uff08\u8a2d\u5b9a\u6e08\u307f\u306a\u3089\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3092\u524a\u9664\u300d\u2192\u518d\u8a2d\u5b9a\uff09\u3092\u9078\u3073\u307e\u3059\u3002\u30e1\u30c7\u30a3\u30a2\u30e9\u30a4\u30d6\u30e9\u30ea\u304b\u3089\u5dee\u3057\u66ff\u3048\u308b\u3060\u3051\u3067\u5909\u66f4\u3067\u304d\u307e\u3059\u3002\u8a2d\u5b9a\u6b04\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u306f<a href=\"#cause1\">\u539f\u56e01\uff1a\u8868\u793a\u30aa\u30d7\u30b7\u30e7\u30f3<\/a>\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 id=\"i-21\">Q. \u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u9069\u6b63\u306a\u30b5\u30a4\u30ba\u306f\uff1f<\/h3>\n<p>\u4e00\u822c\u7684\u306b\u306f\u6a2a\u5e451200px\u524d\u5f8c\u30fb\u7e26\u6a2a\u6bd416:9\uff08\u4f8b\uff1a1200\u00d7630px\uff09\u304c\u76ee\u5b89\u3067\u3059\u3002\u305f\u3060\u3057\u6700\u9069\u306a\u30b5\u30a4\u30ba\u306f\u4f7f\u7528\u4e2d\u306e\u30c6\u30fc\u30de\u304c\u6307\u5b9a\u3059\u308b\u8868\u793a\u30b5\u30a4\u30ba\u306b\u3088\u3063\u3066\u5909\u308f\u308a\u307e\u3059\u3002\u5927\u304d\u3059\u304e\u3066\u3082\u5c0f\u3055\u3059\u304e\u3066\u3082\u898b\u5207\u308c\u308b\u539f\u56e0\u306b\u306a\u308b\u305f\u3081\u3001\u8a73\u3057\u304f\u306f<a href=\"#cause5\">\u539f\u56e05\uff1a\u30b5\u30a4\u30ba\u304c\u5408\u308f\u306a\u3044<\/a>\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"i-22\">Q. WordPress\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3068\u306f\uff1f\u3069\u3053\u306b\u8868\u793a\u3055\u308c\u308b\uff1f<\/h3>\n<p>\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\uff08\u30b5\u30e0\u30cd\u30a4\u30eb\uff09\u306f\u3001\u8a18\u4e8b\u3092\u8c61\u5fb4\u3059\u308b\u4ee3\u8868\u753b\u50cf\u3067\u3059\u3002\u8a18\u4e8b\u4e00\u89a7\u30fb\u95a2\u9023\u8a18\u4e8b\u30fbSNS\u30b7\u30a7\u30a2\u6642\u306e\u30ab\u30fc\u30c9\u306a\u3069\u306b\u8868\u793a\u3055\u308c\u3001\u30af\u30ea\u30c3\u30af\u7387\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002\u8868\u793a\u4f4d\u7f6e\u306f\u30c6\u30fc\u30de\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3 id=\"i-23\">Q. \u8a2d\u5b9a\u3057\u305f\u306e\u306b\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u306e\u306f\u306a\u305c\uff1f<\/h3>\n<p>\u8a2d\u5b9a\u81ea\u4f53\u306f\u5b8c\u4e86\u3057\u3066\u3044\u3066\u3082\u3001\u4f7f\u7528\u4e2d\u306e\u30c6\u30fc\u30de\u304c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u8868\u793a\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u753b\u9762\u306b\u51fa\u307e\u305b\u3093\u3002\u30c6\u30fc\u30de\u5074\u306e\u5bfe\u5fdc\u72b6\u6cc1\u306f<a href=\"#cause2\">\u539f\u56e02\uff1a\u30c6\u30fc\u30de\u975e\u5bfe\u5fdc<\/a>\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u539f\u56e0\u306e\u3053\u3068\u3082\u3042\u308b\u305f\u3081\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u524a\u9664\u3082\u8a66\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 id=\"i-24\">Q. \u30b5\u30e0\u30cd\u30a4\u30eb\u753b\u50cf\u3060\u3051\u8868\u793a\u3055\u308c\u306a\u3044\u306e\u306f\u306a\u305c\uff1f<\/h3>\n<p>\u30b5\u30e0\u30cd\u30a4\u30eb\uff08\u7e2e\u5c0f\u8868\u793a\u7528\u306e\u753b\u50cf\uff09\u304c\u751f\u6210\u3055\u308c\u3066\u3044\u306a\u3044\u3001\u307e\u305f\u306f\u30b5\u30a4\u30ba\u5b9a\u7fa9\u304c\u5909\u308f\u3063\u305f\u3053\u3068\u304c\u539f\u56e0\u3067\u3059\u3002\u30c6\u30fc\u30de\u5909\u66f4\u5f8c\u306b\u8d77\u3053\u308a\u3084\u3059\u304f\u3001\u30b5\u30e0\u30cd\u30a4\u30eb\u306e\u518d\u751f\u6210\u3067\u76f4\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002\u624b\u9806\u306f<a href=\"#cause5\">\u539f\u56e05\uff1a\u30b5\u30a4\u30ba\u304c\u5408\u308f\u306a\u3044<\/a>\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"i-25\">Q. \u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3092\u81ea\u52d5\u3067\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u308b\uff1f<\/h3>\n<p>\u6a19\u6e96\u6a5f\u80fd\u3067\u306f\u81ea\u52d5\u8a2d\u5b9a\u3067\u304d\u307e\u305b\u3093\u304c\u3001\u672c\u6587\u4e2d\u306e\u6700\u521d\u306e\u753b\u50cf\u3092\u81ea\u52d5\u3067\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u306b\u8a2d\u5b9a\u3059\u308b\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u4f7f\u3048\u3070\u53ef\u80fd\u3067\u3059\u3002\u8a18\u4e8b\u6570\u304c\u591a\u3044\u30b5\u30a4\u30c8\u3067\u306f\u8a2d\u5b9a\u306e\u624b\u9593\u3092\u7701\u3051\u307e\u3059\u3002\u305f\u3060\u3057\u610f\u56f3\u3057\u306a\u3044\u753b\u50cf\u304c\u9078\u3070\u308c\u308b\u3053\u3068\u3082\u3042\u308b\u305f\u3081\u3001\u91cd\u8981\u306a\u8a18\u4e8b\u306f\u624b\u52d5\u8a2d\u5b9a\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n<h2 id=\"summary\">\u307e\u3068\u3081<\/h2>\n<p>WordPress\u3067\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u304c\u8a2d\u5b9a\u3067\u304d\u306a\u3044\u3068\u304d\u306f\u3001<strong>\u307e\u305a\u300c\u81ea\u5206\u306f\u3069\u306e\u75c7\u72b6\u304b\u300d\u3092\u5207\u308a\u5206\u3051\u308b<\/strong>\u3053\u3068\u304c\u89e3\u6c7a\u3078\u306e\u6700\u77ed\u30eb\u30fc\u30c8\u3067\u3059\u3002\u672c\u8a18\u4e8b\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u307e\u305a\u5207\u308a\u5206\u3051\uff1a<\/strong>\u300c\u6b04\u304c\u51fa\u306a\u3044\u300d\u300c\u753b\u50cf\u3092\u9078\u3079\u306a\u3044\u300d\u300c\u8868\u793a\u3055\u308c\u306a\u3044\u30fb\u898b\u5207\u308c\u308b\u300d\u306e\u3069\u308c\u304b\u3092\u78ba\u8a8d\u3059\u308b<\/li>\n<li><strong>\u539f\u56e01\uff08\u8868\u793a\u30aa\u30d7\u30b7\u30e7\u30f3\uff09\uff1a<\/strong>\u30d6\u30ed\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\u306f\u30b5\u30a4\u30c9\u30d0\u30fc\u300c\u6295\u7a3f\u300d\u30bf\u30d6\u3001\u30af\u30e9\u30b7\u30c3\u30af\u30a8\u30c7\u30a3\u30bf\u306f\u300c\u8868\u793a\u30aa\u30d7\u30b7\u30e7\u30f3\u300d\u3067\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u3092\u6709\u52b9\u306b\u3059\u308b<\/li>\n<li><strong>\u539f\u56e02\uff08\u30c6\u30fc\u30de\u975e\u5bfe\u5fdc\uff09\uff1a<\/strong><code>functions.php<\/code> \u306b <code>add_theme_support('post-thumbnails')<\/code> \u3092\u8ffd\u8a18\u3059\u308b\uff08\u5b50\u30c6\u30fc\u30de\u30fb\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u5fc5\u9808\uff09<\/li>\n<li><strong>\u539f\u56e03\uff08\u30ab\u30b9\u30bf\u30e0\u6295\u7a3f\u30bf\u30a4\u30d7\uff09\uff1a<\/strong><code>supports<\/code> \u306b <code>'thumbnail'<\/code> \u3092\u8ffd\u52a0\u3001\u307e\u305f\u306f\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u300c\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u300d\u306b\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u308b<\/li>\n<li><strong>\u539f\u56e04\uff08\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u4e0d\u53ef\uff09\uff1a<\/strong>\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u4e0a\u9650\u30fb\u30d5\u30a9\u30eb\u30c0\u306e\u6a29\u9650\u3092\u78ba\u8a8d\u3059\u308b<\/li>\n<li><strong>\u539f\u56e05\uff08\u30b5\u30a4\u30ba\u30fb\u30b5\u30e0\u30cd\u30a4\u30eb\uff09\uff1a<\/strong>\u30c6\u30fc\u30de\u5909\u66f4\u5f8c\u306fRegenerate Thumbnails\u3067\u30b5\u30e0\u30cd\u30a4\u30eb\u3092\u518d\u751f\u6210\u3059\u308b<\/li>\n<\/ul>\n<p>\u4e00\u3064\u305a\u3064\u539f\u56e0\u3092\u5207\u308a\u5206\u3051\u3066\u3044\u3051\u3070\u3001\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u304c\u8a2d\u5b9a\u3067\u304d\u306a\u3044\u554f\u984c\u306f\u307b\u3068\u3093\u3069\u306e\u30b1\u30fc\u30b9\u3067\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002\u7126\u3089\u305a\u3001\u81ea\u5206\u306e\u75c7\u72b6\u306b\u5408\u3063\u305f\u30bb\u30af\u30b7\u30e7\u30f3\u304b\u3089\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"sng-box box26\">\n<div class=\"box-title\">\u95a2\u9023\u8a18\u4e8b<\/div>\n<div class=\"box-content\">\n<ul>\n<li><a href=\"https:\/\/rakkoserver.com\/plus\/wordpress\/wordpress-image-upload-error\/\" target=\"_blank\" rel=\"noopener\">\u3010WordPress\u3011\u753b\u50cf\u304c\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3067\u304d\u306a\u30447\u3064\u306e\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5<\/a><\/li>\n<li><a href=\"https:\/\/rakkoserver.com\/plus\/wordpress\/wordpress-custom-post-type\/\" target=\"_blank\" rel=\"noopener\">\u3010WordPress\u3011\u30ab\u30b9\u30bf\u30e0\u6295\u7a3f\u30bf\u30a4\u30d7\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\uff08Custom Post Type UI\uff09<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>WordPress\u3067\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u304c\u8a2d\u5b9a\u3067\u304d\u306a\u3044\u3068\u304a\u56f0\u308a\u306e\u65b9\u3078\u3002\u8a2d\u5b9a\u6b04\u304c\u51fa\u306a\u3044\u30fb\u753b\u50cf\u3092\u9078\u3079\u306a\u3044\u30fb\u4fdd\u5b58\u3067\u304d\u306a\u3044\u306a\u3069\u75c7\u72b6\u5225\u306b5\u3064\u306e\u539f\u56e0\u3092\u5207\u308a\u5206\u3051\u3001\u8868\u793a\u30aa\u30d7\u30b7\u30e7\u30f3\u3084\u30c6\u30fc\u30de\u8a2d\u5b9a\u306e\u898b\u76f4\u3057\u65b9\u3092\u521d\u5fc3\u8005\u306b\u3082\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002\u307e\u305a\u306f\u539f\u56e0\u306e\u7279\u5b9a\u304b\u3089\u59cb\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"author":7,"featured_media":14152,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-14153","post","type-post","status-publish","format-standard","has-post-thumbnail","category-wordpress","entry"],"_links":{"self":[{"href":"https:\/\/rakkoserver.com\/plus\/wp-json\/wp\/v2\/posts\/14153","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rakkoserver.com\/plus\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rakkoserver.com\/plus\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rakkoserver.com\/plus\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/rakkoserver.com\/plus\/wp-json\/wp\/v2\/comments?post=14153"}],"version-history":[{"count":3,"href":"https:\/\/rakkoserver.com\/plus\/wp-json\/wp\/v2\/posts\/14153\/revisions"}],"predecessor-version":[{"id":14196,"href":"https:\/\/rakkoserver.com\/plus\/wp-json\/wp\/v2\/posts\/14153\/revisions\/14196"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rakkoserver.com\/plus\/wp-json\/wp\/v2\/media\/14152"}],"wp:attachment":[{"href":"https:\/\/rakkoserver.com\/plus\/wp-json\/wp\/v2\/media?parent=14153"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rakkoserver.com\/plus\/wp-json\/wp\/v2\/categories?post=14153"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rakkoserver.com\/plus\/wp-json\/wp\/v2\/tags?post=14153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}