<? 

function getRealIP() 

{         

    $ip = ''; 

    if (isset($_SERVER['HTTP_X_FORWARDED_FOR']) AND !empty($_SERVER['HTTP_X_FORWARDED_FOR']))  

    { 

        foreach (explode(',',$_SERVER['HTTP_X_FORWARDED_FOR']) as $values) { 

            $ip .= long2ip(ip2long($values)) . ' ; '; 

        } 

    }  

    else  

        $ip = long2ip(ip2long($_SERVER['REMOTE_ADDR'])); 

    return $ip; 

} 

?>

echo getRealIP();