<?php /**  * 获取客户端IP  * @param  integer $type 返回类型 0:string,1:long  * @return string|long  */ function getClientIp($type = 0) {     $ip = NULL;     if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {         $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);         $pos = array_search('unknown',$arr);         if(false !== $pos) unset($arr[$pos]);         $ip  = trim($arr[0]);     }elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {         $ip = $_SERVER['HTTP_CLIENT_IP'];     }elseif (isset($_SERVER['REMOTE_ADDR'])) {         $ip = $_SERVER['REMOTE_ADDR'];     }     $long = sprintf("%u", ip2long($ip));     $ip   = $long ? array($ip, $long) : array('0.0.0.0', 0);     return $ip[$type]; } /**  * 获取IP信息  * @param  string|long $ip  IP地址  * @return array  */ function getIpInfo($ip) {     if (is_long($ip)) {         $ip = long2ip($ip);     }     $api = 'http://ip.taobao.com/service/getIpInfo.php';     $ret = file_get_contents($api . '?ip=' . $ip);     $ret = json_decode($ret, true);     if ($ret['code'] == 0) {         return $ret['data'];     }     return array(); }