首先搭建php环境,建立个ip.php.
代码如下:
<?php
error_reporting(0);
function GetIP(){
if($_SERVER['HTTP_CLIENT_IP']){
$onlineip=$_SERVER['HTTP_CLIENT_IP'];
}elseif($_SERVER['HTTP_X_FORWARDED_FOR']){
$onlineip=$_SERVER['HTTP_X_FORWARDED_FOR'];
}else{
$onlineip=$_SERVER['REMOTE_ADDR'];
}
return $onlineip;
}
?>再建立个index.php
代码如下:
<?php error_reporting(0); require 'ip.php'; echo '<hr>'.'Your IP is '.GetIP().'<br>'.'<hr>'; /*echo 'REMOTE_ADDR is '.$_SERVER['REMOTE_ADDR'].'<br>'; echo 'HTTP_CLIENT_IP is '.$_SERVER['HTTP_CLIENT_IP'].'<br>'; echo 'HTTP_X_FORWARDED_FOR is '.$_SERVER['HTTP_X_FORWARDED_FOR'].'<br>'; echo 'HTTP_VIA is '.$_SERVER['HTTP_VIA'];*/ ?>
测试
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IP显示正确,客户端真实IP是218.241.179.50
去掉index.php里面的注释,使用代理观察
可以看到REMOTE_ADDR方法抓到了代理IP
HTTP_XFORWARDED_FOR还是抓到了客户端的真实IP
接下来编辑curl_proxy.php,示例代码:
<?php
error_reporting(0);
function curl_string ($url,$user_agent,$proxy){
$ch = curl_init();
curl_setopt ($ch, CURLOPT_PROXY, $proxy);
curl_setopt ($ch, CURLOPT_URL, $url);
curl_setopt ($ch, CURLOPT_USERAGENT, $user_agent);
curl_setopt ($ch, CURLOPT_COOKIEJAR, "d:\cookies.txt");
curl_setopt ($ch, CURLOPT_HEADER, 1);
curl_setopt ($ch, CURLOPT_HTTPHEADER, array('CLIENT-IP:125.210.188.36', 'X-FORWARDED-FOR:125.210.188.36')); //此处可以改为任意假IP
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt ($ch, CURLOPT_TIMEOUT, 120);
$result = curl_exec ($ch);
curl_close($ch);
return $result;
}
$url_page = "http://s4nd.no-ip.org/test/index.php";
$user_agent = "Mozilla/4.0";
$proxy = "http://125.210.188.36:80"; //此处为代理服务器IP和PORT
$string = curl_string($url_page,$user_agent,$proxy);
echo $string;
?>访问curl_proxy.php
122.66.*.*是运行脚本服务器的IP,这样就实现了隐藏客户端真实IP的目的。
有的代理服务器会被HTTP_VIA方法侦测到使用了代理服务器,实际上透明代理和高级匿名代理有很大区别。
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