php查询IP地址归属等信息
淘宝公司提供了一个很好用的IP地理信息查询接口。在这里:http://ip.taobao.com/
TaobaoIPQuery2这个类将极大的简化相关的信息查询。
类 TaobaoIPQuery2 文件：
<?php/* Usage: * $IPInfo = TaobaoIPQuery2::getIPInfo('IPAddress');
http://www.iyunv.com/roucheng/ */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：<?phpClass 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); } /* http://www.iyunv.com/roucheng/ */ private static $_JSONParseError = array( JSON_ERROR_NONE=>'No error has occurred', JSON_ERROR_DEPTH=>'The maximum stack depth has been exceeded', JSON_ERROR_CTRL_CHAR=>'Control character error, possibly incorrectly encoded', JSON_ERROR_STATE_MISMATCH=>'Invalid or malformed JSON', JSON_ERROR_SYNTAX=>'Syntax error', JSON_ERROR_UTF8=>'Malformed UTF-8 characters, possibly incorrectly encoded', );}调用：$ip = $_SERVER["REMOTE_ADDR"];$ipquery = new taobaoIPQuery($ip);$region = $ipquery->get_region();$country = $ipquery->get_country();$city = $ipquery->get_city();另外新浪也提供接口：http://ipapi.sinaapp.com/
额对你忍无可忍，请伱自重 我不想理的人，便不理，我想理的人，却不理我。 要怎么证明，你的亲吻真的残忍.
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