类 TaobaoIPQuery2 文件    

<?php  /* Usage:   * $IPInfo = TaobaoIPQuery2::getIPInfo('IPAddress');   */  Class TaobaoIPQuery2{   private static $_requestURL = 'http://ip.taobao.com/service/getIpInfo.php';   public static function getIPInfo($ip){    $long = ip2long($ip);    if($long === 0){     throw new Exception('IP address error', 5);    }    $ip=long2ip($long);    $IPInfo = self::queryIPInfo($ip);    return self::parseJSON($IPInfo);   }      private static function queryIPInfo($ip){    $query = http_build_query(array('ip'=>$ip));    $ch = curl_init();    $options = array(     CURLOPT_URL => sprintf('%s?%s', self::$_requestURL, $query),     CURLOPT_RETURNTRANSFER => true,     CURLOPT_AUTOREFERER => false,     CURLOPT_FOLLOWLOCATION => false,     CURLOPT_HEADER => false,     CURLOPT_TIMEOUT => 3.0,    );    curl_setopt_array($ch, $options);    $content = curl_exec($ch);    curl_close($ch);    return $content;   }      private static function parseJSON($json){    $O = json_decode ($json, true);    if(false === is_null($O)){     return $O;    }    if (version_compare(PHP_VERSION, '5.3.0', '>=')) {     $errorCode = json_last_error();     if(isset(self::$_JSONParseError[$errorCode])){      throw new Exception(self::$_JSONParseError[$errorCode], 5);     }    }    throw new Exception('JSON parse error', 5);   }      private static $_JSONParseError = array(    JSON_ERROR_NONE=>'No error has occurred',       JSON_ERROR_DEPTH=>'The maximum stack depth has been exceeded',       JSON_ERROR_CTRL_CHAR=>'Control character error, possibly incorrectly encoded',       JSON_ERROR_STATE_MISMATCH=>'Invalid or malformed JSON',       JSON_ERROR_SYNTAX=>'Syntax error',       JSON_ERROR_UTF8=>'Malformed UTF-8 characters, possibly incorrectly encoded',   );  }

TaobaoIPQuery2.Class.php ~ 2KB         

<?php  Class TaobaoIPQuery2{   private static $_requestURL = 'http://ip.taobao.com/service/getIpInfo.php';   public static function getIPInfo($ip){    $long = ip2long($ip);    if($long === 0){     throw new Exception('IP address error', 5);    }    $ip=long2ip($long);    $IPInfo = self::queryIPInfo($ip);    return self::parseJSON($IPInfo);   }      private static function queryIPInfo($ip){    $query = http_build_query(array('ip'=>$ip));    $ch = curl_init();    $options = array(     CURLOPT_URL => sprintf('%s?%s', self::$_requestURL, $query),     CURLOPT_RETURNTRANSFER => true,     CURLOPT_AUTOREFERER => false,     CURLOPT_FOLLOWLOCATION => false,     CURLOPT_HEADER => false,     CURLOPT_TIMEOUT => 3.0,    );    curl_setopt_array($ch, $options);    $content = curl_exec($ch);    curl_close($ch);    return $content;   }      private static function parseJSON($json){    $O = json_decode ($json, true);    if(false === is_null($O)){     return $O;    }    if (version_compare(PHP_VERSION, '5.3.0', '>=')) {     $errorCode = json_last_error();     if(isset(self::$_JSONParseError[$errorCode])){      throw new Exception(self::$_JSONParseError[$errorCode], 5);     }    }    throw new Exception('JSON parse error', 5);   }      private static $_JSONParseError = array(    JSON_ERROR_NONE=>'No error has occurred',       JSON_ERROR_DEPTH=>'The maximum stack depth has been exceeded',       JSON_ERROR_CTRL_CHAR=>'Control character error, possibly incorrectly encoded',       JSON_ERROR_STATE_MISMATCH=>'Invalid or malformed JSON',       JSON_ERROR_SYNTAX=>'Syntax error',       JSON_ERROR_UTF8=>'Malformed UTF-8 characters, possibly incorrectly encoded',   );  }