//funkcija za IP address
	function getUserIP(){
    	$client  = @$_SERVER['HTTP_CLIENT_IP'];
    	$forward = @$_SERVER['HTTP_X_FORWARDED_FOR'];
    	$remote  = $_SERVER['REMOTE_ADDR'];

    	if(filter_var($client, FILTER_VALIDATE_IP))    {
        	$ip = $client;
    	} elseif(filter_var($forward, FILTER_VALIDATE_IP)){
        	$ip = $forward;
    	}
    	else{
        	$ip = $remote;
    	}
    	return $ip;
	}