(mongodb >=1.3.0)
MongoDB\Driver\Monitoring\CommandSubscriber::commandSucceeded — Notification method for a successful command
$event
)If the subscriber has been registered with MongoDB\Driver\Monitoring\addSubscriber(), the driver will call this method when a command has succeeded.
event (MongoDB\Driver\Monitoring\CommandSucceededEvent)An event object encapsulating information about the successful command.
Эта функция не возвращает значения после выполнения.