PHP获取真实IP，即便他使用代理

[PHP]代码

1. function getRealIpAddr()
2. {
3. if (!empty($_SERVER['HTTP_CLIENT_IP']))
4. {
5. $ip=$_SERVER['HTTP_CLIENT_IP'];
6. }
7. elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
8. //检查IP是从代理传递
9. {
10. $ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
11. }
12. else
13. {
14. $ip=$_SERVER['REMOTE_ADDR'];
15. }
16. return $ip;
17. }

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PHP