{"provider_url":"https://hatena.blog","image_url":null,"description":"PHP\u3067\u8ad6\u7406\u5024\u3078\u306eparse\u3001isset()\u3001empty()\u3001is_null()\u3057\u305f\u3068\u304d\u306e\u623b\u308a\u5024\u3092\u307e\u3068\u3081\u3066\u307f\u305f\u3002 \u3042\u308a\u3075\u308c\u305f\u30a8\u30f3\u30c8\u30ea\u30fc\u3060\u3051\u3069\u81ea\u5206\u7528\u306e\u30e1\u30e2\u306b\u3002\u30bd\u30fc\u30b9(is_.php) <?php $num0 = 0; $num1 = 1; $num1_ = -1; $str = \"\"; $str0 = \"0\"; $str1 = \"1\"; $stra = \"a\"; $null = null; $var; $array = array(); $array1 = array(1); echo \"to boolean : \\n\"; echo \"!!(\\$num0)\\t:\\t\" . var_export(\u2026","type":"rich","provider_name":"Hatena Blog","author_name":"AyeBee_TY","author_url":"https://blog.hatena.ne.jp/AyeBee_TY/","url":"https://ayebee-ty.hatenablog.com/entry/20130709/1373352765","width":"100%","title":"\u8ad6\u7406\u5024\u3078\u306eparse\u3001isset()\u3001empty()\u3001is_null()\u3057\u305f\u3068\u304d\u306e\u623b\u308a\u5024","published":"2013-07-09 15:52:45","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fayebee-ty.hatenablog.com%2Fentry%2F20130709%2F1373352765\" title=\"\u8ad6\u7406\u5024\u3078\u306eparse\u3001isset()\u3001empty()\u3001is_null()\u3057\u305f\u3068\u304d\u306e\u623b\u308a\u5024 -  \u30b4\u30df\u6e9c\u3081\uff20\u6280\u8853\u7cfb\u65e5\u5e38\u7cfb\u96d1\u6587\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","blog_url":"https://ayebee-ty.hatenablog.com/","height":"190","categories":["PHP"],"blog_title":" \u30b4\u30df\u6e9c\u3081\uff20\u6280\u8853\u7cfb\u65e5\u5e38\u7cfb\u96d1\u6587"}