sorry should have been clearer, have a look at this code, might come in handy
PHP Code:
if ($HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"] != ""){
$ip = $HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"];
$proxy = $HTTP_SERVER_VARS["REMOTE_ADDR"];
$hostname = @gethostbyaddr($HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"]);
}else{
$ip = $HTTP_SERVER_VARS["REMOTE_ADDR"];
$hostname = @gethostbyaddr($HTTP_SERVER_VARS["REMOTE_ADDR"]);
}