php使用curl伪造IP来源的代码

2. $ch = curl_init();
3. $url = "http://localhost/target_ip.php";
4. $header = array(
5. 'CLIENT-IP:58.68.44.61',
6. 'X-FORWARDED-FOR:58.68.44.61',
7. );
8. curl_setopt($ch, CURLOPT_URL, $url);
9. curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
10. curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
11. $page_content = curl_exec($ch);
12. curl_close($ch);
13. echo $page_content;
14. ?>

请求的目标文件---target_ip.php:

2. echo getenv('HTTP_CLIENT_IP');
3. echo getenv('HTTP_X_FORWARDED_FOR');
4. echo getenv('REMOTE_ADDR');
5. ?>

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

最后，为大家提供二个小例子。 例1:

2. $ch = curl_init();
3. curl_setopt($ch, CURLOPT_URL, "http://localhost/2.php");
4. curl_setopt($ch, CURLOPT_HTTPHEADER, array('X-FORWARDED-FOR:8.8.8.8', 'CLIENT-IP:8.8.8.8')); //构造IP
5. curl_setopt($ch, CURLOPT_REFERER, "http://bbs.it-home.org/ "); //构造来路
6. curl_setopt($ch, CURLOPT_HEADER, 1);
7. $out = curl_exec($ch);
8. curl_close($ch);
9. ?>

例2：

2. function getClientIp() {
3. if (!empty($_SERVER["HTTP_CLIENT_IP"]))
4. $ip = $_SERVER["HTTP_CLIENT_IP"];
5. else if (!empty($_SERVER["HTTP_X_FORWARDED_FOR"]))
6. $ip = $_SERVER["HTTP_X_FORWARDED_FOR"];
7. else if (!empty($_SERVER["REMOTE_ADDR"]))
8. $ip = $_SERVER["REMOTE_ADDR"];
9. else
10. $ip = "err";
11. return $ip;
12. }
13. echo "IP: " . getClientIp() . "";
14. echo "referer: " . $_SERVER["HTTP_REFERER"];
15. ?>