{"id":225,"date":"2008-03-13T14:31:00","date_gmt":"2008-03-13T05:31:00","guid":{"rendered":"http:\/\/clouds.tokyo\/blog\/?p=225"},"modified":"2017-02-28T17:36:09","modified_gmt":"2017-02-28T08:36:09","slug":"php_vd_numbar","status":"publish","type":"post","link":"https:\/\/clouds.tokyo\/blog\/php_vd_numbar\/","title":{"rendered":"\u3010PHP\u3011\u6b63\u898f\u8868\u73fe\u30670\uff5e9\u306e\u6570\u5b57\u306e\u307f\u8a31\u53ef"},"content":{"rendered":"<p>\u5165\u529b\u30c1\u30a7\u30c3\u30af\u3067\u3088\u304f\u3042\u308b0\uff5e9\u306e\u300c\u534a\u89d2\u6570\u5b57\u300d\u306e\u307f\u304b\u3069\u3046\u304b\u306e\u30c1\u30a7\u30c3\u30af\u3067\u3059\u3002<\/p>\n<pre>\r\nfunction check_number($caption, $value) {\r\n  if($value == '') {\r\n    return null;\r\n  }\r\n  $preg = '\/^[0-9]+$\/';\r\n  if(!preg_match($preg, $value)) {\r\n    return \"$caption \u306f\u6570\u5b57\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\";\r\n  }\r\n  return 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