php伪造来源ip，，，1.php 请求 2.php 。
1.php代码：
$ch = curl_init();curl_setopt($ch, curlopt_url, http://localhost/2.php);curl_setopt($ch, curlopt_httpheader, array('x-forwarded-for:8.8.8.8', 'client-ip:8.8.8.8')); //构造ipcurl_setopt($ch, curlopt_referer, http://www.gosoa.com.cn/ ); //构造来路curl_setopt($ch, curlopt_header, 1);$out = curl_exec($ch);curl_close($ch);2.php代码如下：function getclientip() { if (!empty($_server[http_client_ip])) $ip = $_server[http_client_ip]; else if (!empty($_server[http_x_forwarded_for])) $ip = $_server[http_x_forwarded_for]; else if (!empty($_server[remote_addr])) $ip = $_server[remote_addr]; else $ip = err; return $ip;} echo ip: . getclientip() . ;echo referer: . $_server[http_referer];伪造成功，这是不是给“刷票”的朋友提供了很好的换ip的方案！！
原文：http://www.software8.co/wzjs/phpshili/3139.html