$addRequest = new RouterOS\Request('/ip hotspot walled-garden add dst-host=www.example.com');
$client($addRequest);
 

$util = new RouterOS\Util($client);
$util
    ->setMenu('/ip hotspot walled-garden')
    ->remove(
        RouterOS\Query::where('dst-host', 'www.example.com')
    );

$util = new RouterOS\Util($client);
$util
    ->changeMenu('/ip hotspot walled-garden')
    ->remove(RouterOS\Query::where('dst-host', 'www.example.com')
    );
$client($util);

$util->changeMenu('/ip hotspot walled-garden');
$util->remove(RouterOS\Query::where('dst-host', 'www.example.com')); 

$printRequest = new RouterOS\Request(
'/ip hotspot walled-garden getall .proplist=dst-host',
RouterOS\Query::where('comment', 'something')
);
echo $client->sendSync($printRequest)->getArgument('dst-host');
 

foreach ($client->sendSync($printRequest)->getAllOfType(Routeros\Response::TYPE_DATA) as $response) {
    echo $response('dst-host');
} 

$util = new RouterOS\Util($client);
$util->changeMenu('/ip hotspot walled-garden');
$util->remove(RouterOS\Query::where('dst-host', 'something') && ('comment', 'something')); 

$util->remove(RouterOS\Query::where('dst-host', 'something')->andWhere('comment', 'something')); 

$util->changeMenu('/ip hotspot user profile');
$util->set(
    'default',
    array(
        'session-timeout' => '20m'
    )
);