{"provider_name":"Hatena Blog","blog_url":"https://gerogerokaeru.hatenadiary.org/","blog_title":"\u5099\u5fd8\u9332 python,\u7d71\u8a08,\u8aad\u66f8etc..","image_url":null,"url":"https://gerogerokaeru.hatenadiary.org/entry/20130918/p1","categories":["PHP"],"title":"\u6587\u5b57\u5217\u95a2\u6570","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fgerogerokaeru.hatenadiary.org%2Fentry%2F20130918%2Fp1\" title=\"\u6587\u5b57\u5217\u95a2\u6570 - \u5099\u5fd8\u9332 python,\u7d71\u8a08,\u8aad\u66f8etc..\" 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","height":"190","provider_url":"https://hatena.blog","author_name":"gerogerokaeru","type":"rich","description":"round\u95a2\u6570 round(\u6570\u5024\u3001\u6841\u6570) \u7b2c\u4e00\u5f15\u6570\u306e\u6570\u5024\u304c\u57fa\u6e96\u5024\u3068\u306a\u308a\u3001\u7b2c\u4e8c\u5f15\u6570\u306b\u56db\u6368\u4e94\u5165\u3057\u305f\u3044\u6841\u6570\u3092\u6307\u5b9a\u3067\u304d\u308b\u3002 <?php $a = round(123.456,1); print ($a); ?> \u7b2c\uff12\u5f15\u6570\u306e\u201d\uff11\u201d\u304c\u5c0f\u6570\u70b9\u7b2c1\u4f4d\u304c\u7e70\u308a\u4e0a\u304c\u308b\u306e\u3067\u7d50\u679c\u306f\u3002 \u51fa\u529b\u7d50\u679c\uff1a123.5 \u7b2c\uff12\u5f15\u6570\u3092\u30de\u30a4\u30ca\u30b9\u3084\u6307\u5b9a\u3057\u306a\u304b\u3063\u305f\u308a\u3059\u308b\u3068... <?php $a = round(123.456); //\u6307\u5b9a\u306a\u3057 print ($a); \u51fa\u529b\u7d50\u679c\uff1a123 // $a = round(123.456,-1);//\u30de\u30a4\u30ca\u30b9\u6307\u5b9a print ($a); \u51fa\u529b\u7d50\u679c\uff1a 120 ?> substr\u95a2\u6570 substr(\u5bfe\u8c61\u306e\u2026","author_url":"https://blog.hatena.ne.jp/gerogerokaeru/","published":"2013-09-18 00:00:00","width":"100%"}