How to get Real IP of user that Online via Proxy with PHP

This article will show how to detect real IP from client with PHP. With this little code we can detech user real IP. Let try. first write this code in *.php with favorite editor such (Dreamweaver MX 2004, PHPedit, Notepad, etc)

< ?php
if($HTTP_X_FORWARDED_FOR):
        echo "Proxy Name $HTTP_VIA";
        echo "Proxy IP $REMOTE_ADDR";
        echo  gethostbyaddr;
        echo "Your Real IP $HTTP_X_FORWARDED_FOR";
else:
 // if access direct to Internet, without Proxy
        echo "Real IP $REMOTE_ADDR";
endif;
? >

This simple code to detech real IP of client.