{"width":"100%","published":"2008-03-18 04:55:00","version":"1.0","image_url":null,"author_name":"kazepapa","url":"https://kaze88.hatenablog.jp/entry/2008/03/18/045500","description":"if(isset($hoge)){ $hoge\u3092\u4f7f\u3063\u305f\u4f55\u304b\u306e\u51e6\u7406}\u3042\u308b\u3044\u306fhtmlspecialchars(@$hogehoeg\uff09isset()\u306f\u3001\u5f15\u6570\u306b\u6307\u5b9a\u3057\u305f\u5909\u6570\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u8abf\u3079\u308b\u95a2\u6570\u3067\u3059\u3002isset()\u95a2\u6570\uff1a\u8fd4\u308a\u5024\u89e3\u8aac\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308c\u3070TRUE\u3001\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u306a\u3051\u308c\u3070FALSE\u3092\u8fd4\u3057\u307e\u3059\u3002isset()\u95a2\u6570\uff1a\u5f15\u6570\u89e3\u8aacvar \u5909\u6570\u8abf\u3079\u305f\u3044\u5909\u6570\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002isset()\u95a2\u6570\uff1a\u88dc\u8db3\u89e3\u8aacisset()\u95a2\u6570\u3092\u4f7f\u3046\u3068\u5909\u6570\u306e\u5024\u304c 0 \u3084\u7a7a\u6587\u5b57 \"\" \u306e\u5834\u5408\u3082TRUE\u3092\u8fd4\u3057\u307e\u3059\u306e\u3067\u4fbf\u5229\u3067\u3059\u3002\u95a2\u6570\u306b\u3088\u3063\u3066\u5909\u6570\u304c\u7834\u68c4\u3055\u308c\u305f\u5834\u5408\u306b\u306fFALSE\u3068\u306a\u308a\u307e\u3059\u3002\u203bNULL\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5909\u6570\u3092\u8abf\u3079\u305f\u5834\u5408\u3082F\u2026","provider_url":"https://hatena.blog","blog_title":"\u98a8\u306e\u304d\u307e\u3050\u308c","type":"rich","author_url":"https://blog.hatena.ne.jp/kazepapa/","categories":["\u30cd\u30c3\u30c8\uff06\u30c4\u30fc\u30eb"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkaze88.hatenablog.jp%2Fentry%2F2008%2F03%2F18%2F045500\" title=\"&amp;quot;undefined index&amp;quot;\u3067\u3064\u307e\u3063\u305f\u6642\u306e\u30e1\u30e2 - \u98a8\u306e\u304d\u307e\u3050\u308c\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","blog_url":"https://kaze88.hatenablog.jp/","height":"190","title":"&quot;undefined index&quot;\u3067\u3064\u307e\u3063\u305f\u6642\u306e\u30e1\u30e2"}