private function checkLogin($login)
    {
        foreach ($this->mapQueue as $jukeboxMap) {
            if ($jukeboxMap->getPlayer()->getLogin() == $login) {
                return true;
            }
        }

        return false;
    }
private function checkLogin($login)
    {
        foreach ($this->mapQueue as $jukeboxMap) {
            if ($jukeboxMap->getPlayer()->getLogin() == $login) {
                return true;
            }
        }

        return false;
    }
private function checkLogin ( $ login ) { foreach ( $ this -> mapQueue as $ jukeboxMap ) { if ( $ jukeboxMap -> getPlayer ( ) -> getLogin ( ) == $ login ) { return true ; } } return false ; }
checks if login exists on queue
@param string $login
@return bool
checks if login exists on queue