{"height":"190","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.shigemk2.com%2Fentry%2F20120724%2F1343067809\" title=\"\u53ef\u5909\u5909\u6570 - by shigemk2\" 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","provider_name":"Hatena Blog","url":"https://www.shigemk2.com/entry/20120724/1343067809","image_url":null,"author_url":"https://blog.hatena.ne.jp/shigemk2/","description":"\u5909\u6570\u306e\u5024\u3092\u5225\u306e\u5909\u6570\u540d\u3068\u3057\u3066\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u308b\u3002 <?php $a = 'foo'; $$a = 3; print_r($foo); \u4e0a\u8a18\u306e\u4f8b\u3060\u3068\u3001foo\u304c\u5909\u6570\u540d\u306b\u306a\u3063\u3066\u3001$foo\u306b3\u304c\u4ee3\u5165\u3055\u308c\u3066\u3044\u308b\u3002 3 <?php $a = 'foo'; $$a = 3; $array = array($$a => $a); print_r($array); Array ( [3] => foo )","type":"rich","categories":["PHP"],"title":"\u53ef\u5909\u5909\u6570","author_name":"shigemk2","blog_url":"https://www.shigemk2.com/","blog_title":"by shigemk2","published":"2012-07-24 03:23:29","width":"100%"}