curl发出请求的文件fake_ip.php: 代码 代码如下:

<?php $ch = curl_init(); $url = "http://localhost/target_ip.php"; $header = array( 'CLIENT-IP:58.68.44.61', 'X-FORWARDED-FOR:58.68.44.61', ); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_HTTPHEADER, $header); curl_setopt($ch, CURLOPT_RETURNTRANSFER,true); $page_content = curl_exec($ch); curl_close($ch); echo $page_content; ?>

请求的目标文件target_ip.php: 代码如下:

<?php echo getenv('HTTP_CLIENT_IP'); echo getenv('HTTP_X_FORWARDED_FOR'); echo getenv('REMOTE_ADDR'); ?>

目标文件target_ip里面的IP打印顺序是目前很多开源系统的IP获取顺序 访问fake_ip.php,看到结果: 58.68.44.61 58.68.44.61 127.0.0.1 实例 CURL确实很强悍，可以伪造IP和来源。 1.php 请求 2.php 。

1.php代码：

代码如下:

$ch = curl_init(); curl_setopt($ch, CURLOPT_URL, "http://localhost/2.php"); curl_setopt($ch, CURLOPT_HTTPHEADER, array('X-FORWARDED-FOR:8.8.8.8', 'CLIENT-IP:8.8.8.8')); //构造IP curl_setopt($ch, CURLOPT_REFERER, "http://www.jb51.net/ "); //构造来路 curl_setopt($ch, CURLOPT_HEADER, 1); $out = curl_exec($ch); curl_close($ch);

2.php代码如下：

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