如何获得客户的IP？ php默认函数不像getenv，$ _ SERVER ['REMOTE_ADDR']

Question

I am getting my local IP with this code

if (getenv('HTTP_X_FORWARDED_FOR')) 

    $ip=getenv('HTTP_X_FORWARDED_FOR');
else

    $ip=getenv('REMOTE_ADDR');

I am getting clients default gateway IP but I want client's live IP.

Answer 1

First comment is right but with some proxy client's IP is available in HTTP_X_FORWARDED_FOR, it seems not to be your case.

Watch other environment variables (phpinfo() or print_r($_SERVER)) to see if your client IP is available.

If not, this is not possible. The proxy is hidding the real IP (as it should be).