{"blog_url":"https://www.shigemk2.com/","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.shigemk2.com%2Fentry%2F20120627%2F1340738518\" title=\"\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u306e\u7cbe\u5ea6 - 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>","width":"100%","author_url":"https://blog.hatena.ne.jp/shigemk2/","type":"rich","blog_title":"by shigemk2","url":"https://www.shigemk2.com/entry/20120627/1340738518","published":"2012-06-27 04:21:58","title":"\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u306e\u7cbe\u5ea6","provider_name":"Hatena Blog","author_name":"shigemk2","provider_url":"https://hatena.blog","version":"1.0","image_url":null,"categories":["PHP"],"description":"PHP: \u6d6e\u52d5\u5c0f\u6570\u70b9\u6570 - Manual CPU\u306b\u3088\u3063\u3066float\u306e\u7cbe\u5ea6\u304c\u9055\u3046\u306e\u3067\u3001\u5c0f\u6570\u306e\u6841\u6570\u3092\u4fe1\u7528\u3057\u3066\u306f\u3044\u3051\u306a\u3044\u3002\u30b5\u30f3\u30d7\u30eb <?php $a = 0.1444444444444444444444444; $b = 0.1444444444444444444444445; if($a < $b) print_r('hoge'); // $a\u3068$b\u306f\u30a4\u30b3\u30fc\u30eb\u306b\u306a\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u308b $a = 0.144444; $b = 0.144445; if($a < $b) print_r('homu'); \u7d50\u679c homu \u8ffd\u8a18 var_dump\u3092\u3064\u304b\u3046\u3068\u3044\u3044\u3067\u3059\u306d\u3002 <?php $a = 0.1444444\u2026"}