php HTTP_REFERER获取不值来伪造一个HTTP_REFERER请求

HTTP_REFERER这个是作用是返回上一个页面地址包，但有时会取不到，我们可以模仿它来做下面来看二种在正常的$_SERVER[\\\'HTTP_REFERER\\\']取不到值的处理方法。

<script>ec(2);</script>

//简单关于HTTP_REFERER一

代码如下	复制代码
$phpSelf = isset($_SERVER['PHP_SELF']) ? $_SERVER['PHP_SELF'] : $_SERVER['SCRIPT_NAME']; $queryString = ''; if (!empty($_SERVER['QUERY_STRING'])) {  $queryString = '?' . $_SERVER['QUERY_STRING']; } echo $phpSelf . $queryString;

//实例教程二 HTTP_REFERER二

代码如下	复制代码
$ch = curl_init(); curl_setopt($ch, CURLOPT_URL, 'http://localhost/test.php'); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_REFERER,   'http://www.baidu.com'); $data = curl_exec($ch); curl_close($ch); echo $data;

/* http://www.111cn.net/test.php */
die($_SERVER['HTTP_REFERER']);