Question

我看到很多疯狂的软件在网站上运行，工具在PHP网站上发现了远程访问者（本地路由器地址）的网关地址..

这怎么可能？我搜索了很多关于这个，但没有什么解释肯定.. 有谁知道这些代码是如何工作的？

谢谢，（对不起，EN。）

Answer 1

参考How to get the client IP address in PHP?

//获取用户IP地址的功能

function getUserIP() {
    $ipaddress = '';
    if (isset($_SERVER['HTTP_CLIENT_IP']))
        $ipaddress = $_SERVER['HTTP_CLIENT_IP'];
    else if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
        $ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
    else if(isset($_SERVER['HTTP_X_FORWARDED']))
        $ipaddress = $_SERVER['HTTP_X_FORWARDED'];
    else if(isset($_SERVER['HTTP_X_CLUSTER_CLIENT_IP']))
        $ipaddress = $_SERVER['HTTP_X_CLUSTER_CLIENT_IP'];
    else if(isset($_SERVER['HTTP_FORWARDED_FOR']))
        $ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
    else if(isset($_SERVER['HTTP_FORWARDED']))
        $ipaddress = $_SERVER['HTTP_FORWARDED'];
    else if(isset($_SERVER['REMOTE_ADDR']))
        $ipaddress = $_SERVER['REMOTE_ADDR'];
    else
        $ipaddress = 'UNKNOWN';
    return $ipaddress;
}

Answer 2

我在野外发现了一段代码，仅适用于Internet Explorer ... 但有些人可以绕过这个，我不知道..

CODE HERE

我如何获得访客的网关地址？ PHP

2 个答案: