{"id":1659,"date":"2019-02-15T12:00:43","date_gmt":"2019-02-15T03:00:43","guid":{"rendered":"http:\/\/4koma-web.com\/coding\/?p=1659"},"modified":"2019-02-15T12:02:17","modified_gmt":"2019-02-15T03:02:17","slug":"1659-2","status":"publish","type":"post","link":"https:\/\/4koma-web.com\/coding\/1659-2\/","title":{"rendered":"\u8a18\u4e8b\u5185\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u753b\u50cf\u3092\u30b5\u30e0\u30cd\u30a4\u30eb\u3068\u3057\u3066\u8868\u793a\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/4koma-web.com\/coding\/wp-content\/uploads\/2017\/12\/c2e580c9bbd01a22c501b7be2a1fb4a1_t.jpg\" alt=\"\" width=\"510\" height=\"340\" class=\"alignnone size-full wp-image-1107\" \/><\/p>\n<p>\u30b5\u30e0\u30cd\u30a4\u30eb\u3092\u3044\u3061\u3044\u3061\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u304b\u3089\u767b\u9332\u3059\u308b\u306e\u304c\u9762\u5012\u3001<br \/>\n\u8a18\u4e8b\u672c\u6587\u306e\u753b\u50cf\u3092\u5f15\u7528\u3057\u3066\u304f\u308c\u308c\u3070\u697d\u306a\u3093\u3060\u3051\u3069\u3068\u3044\u3046\u4eba\u3082\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u305d\u3053\u3067\u3001\u672c\u6587\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u753b\u50cf\u3092\u30b5\u30e0\u30cd\u30a4\u30eb\u3068\u3057\u3066\u3001<br \/>\n\u30a2\u30fc\u30ab\u30a4\u30d6\u30da\u30fc\u30b8\u306b\u8868\u793a\u3055\u305b\u308b\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<p>\u8a18\u4e8b\u672c\u6587\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u308b\u306b\u306f\u3001<br \/>\nfunction.php\u306b\u4e0b\u8a18\u306e\u8a18\u8ff0\u3092\u3057\u307e\u3059\u3002<\/p>\n<pre>\r\nfunction catch_image() {\r\n    global $post, $posts;\r\n    $first_img = '';\r\n    ob_start();\r\n    ob_end_clean();\r\n    $output = preg_match_all('\/<img.+src=[\\'\"]([^\\'\"]+)[\\'\"].*>\/i', $post->post_content, $matches);\r\n    $first_img = $matches [1] [0];\r\n  \r\nif(empty($first_img)){ \/\/Defines a default image\r\n        $first_img = \"\/images\/\u25cb\u25cb.jpg\";\r\n    }\r\n    return $first_img;\r\n}\r\n<\/pre>\n<p>$first_img = &#8220;\/images\/\u25cb\u25cb.jpg&#8221;;\u306b\u306f\u8a18\u4e8b\u5185\u306b\u753b\u50cf\u304c\u306a\u3044\u5834\u5408\u306e\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u308burl\u3092\u4efb\u610f\u3067\u5165\u308c\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306b\u30a2\u30fc\u30ab\u30a4\u30d6\u30da\u30fc\u30b8\u3067\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u305f\u3044\u5834\u6240\u306b\u4ee5\u4e0b\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<pre>\r\n<img decoding=\"async\" src=\"<?php echo catch_image(); 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