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"); */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);}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 = $ipquery->get_city();
我们再来看个腾讯api接口的
/**根据腾讯IP分享计划的地址获取IP所在地,比较精确*/ function getIPLoc_QQ($queryIP){ $url = "http://ip.qq.com/cgi-bin/searchip?searchip1=".$queryIP; $ch = curl_init($url); curl_setopt($ch,CURLOPT_ENCODING ,"gb2312"); curl_setopt($ch, CURLOPT_TIMEOUT, 10); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true) ; // 获取数据返回 $result = curl_exec($ch); $result = mb_convert_encoding($result, "utf-8", "gb2312"); // 编码转换,否则乱码 curl_close($ch); preg_match("@<span>(.*)</span></p>@iU",$result,$ipArray); $loc = $ipArray[1]; return $loc; } 腾讯的IP分享计划的查询接口连接是:http://ip.qq.com/cgi-bin/searchip,该连接后面会带有一个get参数searchip1,即searchip1=你要查询的IP地址。采用PHP向http://ip.qq.com/cgi-bin/searchip发送http get request,然后获取相应,获得相应结果后,将结果用正则表达式将需要的地理位置信息提取出来就OK了。当然,PHP发送get请求的方法有很多,我用curl来模拟http请求的方法
Curl是PHP的一个扩展,进行测试之前,先确认PHP已经加载了curl扩展。打开PHP配置文件php.ini,搜索 “extension=php_curl.dll”,将其前面的分号(;)去掉,然后重启HTTP服务器,查看phpinfo(),若能看到curl的信 息,说明PHP扩展curl成功
接下来是新浪网的API接口
新浪的IP查询接口地址是:http://int.dpool.sina.com.cn/iplookup/iplookup.php,该连接后面也带有get参数,参数ip=你要查询的IP地址,format=返回的查询结果格式。为了方便起见,返回的格式采用json,即format=json,因此,PHP出来扩展curl外,还得扩展json:
/**根据新浪IP查询接口获取IP所在地*/ function getIPLoc_sina($queryIP){ $url = "http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip=".$queryIP; $ch = curl_init($url); //curl_setopt($ch,CURLOPT_ENCODING ,"utf8"); curl_setopt($ch, CURLOPT_TIMEOUT, 10); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true) ; // 获取数据返回 $location = curl_exec($ch); $location = json_decode($location); curl_close($ch);$loc = ""; if($location===FALSE) return ""; if (emptyempty($location->desc)) { $loc = $location->province.$location->city.$location->district.$location->isp; }else{ $loc = $location->desc; } return $loc; } 使用getIPLoc_sina("183.37.209.57")即可得到IP地址所在的地址位置。