How to get visiter's real ip?

Some visiters will visit a web site via a proxy in order to hide his real ip, how to use php to check out the real ip?

 

Check all the headers, especially X_FORWARDED_FOR and such.

Jay

 

oh, i have a function to check visitor's real ip address:

function getRealIpAddr()
{
	if (!empty($_SERVER['HTTP_CLIENT_IP']))
	{
		$ip=$_SERVER['HTTP_CLIENT_IP'];
	}
	else if (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
	{
		$ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
	}
	else
	{
		$ip=$_SERVER['REMOTE_ADDR'];
	}
	return $ip;
}

Code (markup):

one thing make me wonder. If we can know the real visitor's IP address,what is the use of proxy?

 

hey you can try this...

http://roshanbh.com.np/2007/12/getting-real-ip-address-in-php.html

 

The levels of proxy:
Transparent & Anonymous - Reveals real IP
Elite - Does not reveal it's a proxy.

Get an elite proxy and browse to your script, it won't detect your real IP.

Jay

 

^thank you.