1 <?php 2 /* Usage: 3  * $IPInfo = TaobaoIPQuery2::getIPInfo('IPAddress'); 4  5 http://www.cnblogs.com/roucheng/ 6  */ 7 Class TaobaoIPQuery2{ 8     private static $_requestURL = 'http://ip.taobao.com/service/getIpInfo.php'; 9     public static function getIPInfo($ip){10         $long = ip2long($ip);11         if($long === 0){12             throw new Exception('IP address error', 5);13         }14         $ip=long2ip($long);15         $IPInfo = self::queryIPInfo($ip);16         return self::parseJSON($IPInfo);17     }18     19     private static function queryIPInfo($ip){20         $query = http_build_query(array('ip'=>$ip));21         $ch = curl_init();22         $options = array(23             CURLOPT_URL => sprintf('%s?%s', self::$_requestURL, $query),24             CURLOPT_RETURNTRANSFER => true,25             CURLOPT_AUTOREFERER => false,26             CURLOPT_FOLLOWLOCATION => false,27             CURLOPT_HEADER => false,28             CURLOPT_TIMEOUT => 3.0,29         );30         curl_setopt_array($ch, $options);31         $content = curl_exec($ch);32         curl_close($ch);33         return $content;34     }35     36     private static function parseJSON($json){37         $O = json_decode ($json, true);38         if(false === is_null($O)){39             return $O;40         }41         if (version_compare(PHP_VERSION, '5.3.0', '>=')) {42             $errorCode = json_last_error();43             if(isset(self::$_JSONParseError[$errorCode])){44                 throw new Exception(self::$_JSONParseError[$errorCode], 5);45             }46         }47         throw new Exception('JSON parse error', 5);48     }49     50     private static $_JSONParseError = array(51         JSON_ERROR_NONE=>'No error has occurred',   52         JSON_ERROR_DEPTH=>'The maximum stack depth has been exceeded',   53         JSON_ERROR_CTRL_CHAR=>'Control character error, possibly incorrectly encoded',   54         JSON_ERROR_STATE_MISMATCH=>'Invalid or malformed JSON',   55         JSON_ERROR_SYNTAX=>'Syntax error',   56         JSON_ERROR_UTF8=>'Malformed UTF-8 characters, possibly incorrectly encoded',57     );58 }

 1 <?php 2 Class TaobaoIPQuery2{ 3     private static $_requestURL = 'http://ip.taobao.com/service/getIpInfo.php'; 4     public static function getIPInfo($ip){ 5         $long = ip2long($ip); 6         if($long === 0){ 7             throw new Exception('IP address error', 5); 8         } 9         $ip=long2ip($long);10         $IPInfo = self::queryIPInfo($ip);11         return self::parseJSON($IPInfo);12     }13     14     private static function queryIPInfo($ip){15         $query = http_build_query(array('ip'=>$ip));16         $ch = curl_init();17         $options = array(18             CURLOPT_URL => sprintf('%s?%s', self::$_requestURL, $query),19             CURLOPT_RETURNTRANSFER => true,20             CURLOPT_AUTOREFERER => false,21             CURLOPT_FOLLOWLOCATION => false,22             CURLOPT_HEADER => false,23             CURLOPT_TIMEOUT => 3.0,24         );25         curl_setopt_array($ch, $options);26         $content = curl_exec($ch);27         curl_close($ch);28         return $content;29     }30     31     private static function parseJSON($json){32         $O = json_decode ($json, true);33         if(false === is_null($O)){34             return $O;35         }36         if (version_compare(PHP_VERSION, '5.3.0', '>=')) {37             $errorCode = json_last_error();38             if(isset(self::$_JSONParseError[$errorCode])){39                 throw new Exception(self::$_JSONParseError[$errorCode], 5);40             }41         }42         throw new Exception('JSON parse error', 5);43     }44     /* http://www.cnblogs.com/roucheng/ */45     private static $_JSONParseError = array(46         JSON_ERROR_NONE=>'No error has occurred',   47         JSON_ERROR_DEPTH=>'The maximum stack depth has been exceeded',   48         JSON_ERROR_CTRL_CHAR=>'Control character error, possibly incorrectly encoded',   49         JSON_ERROR_STATE_MISMATCH=>'Invalid or malformed JSON',   50         JSON_ERROR_SYNTAX=>'Syntax error',   51         JSON_ERROR_UTF8=>'Malformed UTF-8 characters, possibly incorrectly encoded',52     );53 }

$ip = $_SERVER["REMOTE_ADDR"];$ipquery = new taobaoIPQuery($ip);$region = $ipquery->get_region();$country = $ipquery->get_country();$city = $ipquery->get_city();