Юрий Денисов

public static function destroySession() {
        $_SESSION = array();

        $params = session_get_cookie_params();

        setcookie(  session_name(), 
                    '', 
                    time() - 42000, 
                    $params["path"], 
                    $params["domain"], 
                    $params["secure"], 
                    $params["httponly"]
                );

        session_destroy();
    }