Overview
KB
Technical FAQ
PHP Manual
CSS2 Manual
HTML Manual
JS Guide
JS Reference
PhpDock Manual
Nu-Coder Manual
PhpExpress Manual
PHP Joomla
Development
Learn PHP
 
<MongoDB\DriverMongoDB\Driver\Manager::addSubscriber>
^MongoDB\DriverLast updated: Mon, 26 Oct 2026

The MongoDB\Driver\Manager class

(mongodb >=1.0.0)

Introduction

The MongoDB\Driver\Manager is the main entry point to the extension. It is responsible for maintaining connections to MongoDB (be it standalone server, replica set, or sharded cluster).

No connection to MongoDB is made upon instantiating the Manager. This means the MongoDB\Driver\Manager can always be constructed, even though one or more MongoDB servers are down.

Any write or query can throw connection exceptions as connections are created lazily. A MongoDB server may also become unavailable during the life time of the script. It is therefore important that all actions on the Manager to be wrapped in try/catch statements.

Class synopsis

final class MongoDB\Driver\Manager {
/* Methods */
final public function addSubscriber(MongoDB\Driver\Monitoring\Subscriber $subscriber): void
final public function __construct(?string $uri = null, ?array $uriOptions = null, ?array $driverOptions = null)
final public function createClientEncryption(array $options): MongoDB\Driver\ClientEncryption
final public function executeBulkWrite(string $namespace, MongoDB\Driver\BulkWrite $bulk, ?array $options = null): MongoDB\Driver\WriteResult
final public function executeBulkWriteCommand(MongoDB\Driver\BulkWriteCommand $bulk, ?array $options = null): MongoDB\Driver\BulkWriteCommandResult
final public function executeCommand(string $db, MongoDB\Driver\Command $command, ?array $options = null): MongoDB\Driver\Cursor
final public function executeQuery(string $namespace, MongoDB\Driver\Query $query, ?array $options = null): MongoDB\Driver\Cursor
final public function executeReadCommand(string $db, MongoDB\Driver\Command $command, ?array $options = null): MongoDB\Driver\Cursor
final public function executeReadWriteCommand(string $db, MongoDB\Driver\Command $command, ?array $options = null): MongoDB\Driver\Cursor
final public function executeWriteCommand(string $db, MongoDB\Driver\Command $command, ?array $options = null): MongoDB\Driver\Cursor
final public function getEncryptedFieldsMap(): array|object|null
final public function getReadConcern(): MongoDB\Driver\ReadConcern
final public function getReadPreference(): MongoDB\Driver\ReadPreference
final public function getServers(): array
final public function getWriteConcern(): MongoDB\Driver\WriteConcern
final public function removeSubscriber(MongoDB\Driver\Monitoring\Subscriber $subscriber): void
final public function selectServer(?MongoDB\Driver\ReadPreference $readPreference = null): MongoDB\Driver\Server
final public function startSession(?array $options = null): MongoDB\Driver\Session
}

Examples

Example #1 MongoDB\Driver\Manager::__construct() basic example

var_dump()ing a MongoDB\Driver\Manager will print out various details about the manager that are otherwise not normally exposed. This can be useful to debug how the driver views your MongoDB setup, and which options are used. 

<?php

$manager = new MongoDB\Driver\Manager('mongodb://localhost:27017');
var_dump($manager);

?>

The above example will output something similar to:

object(MongoDB\Driver\Manager)#1 (2) {
  ["uri"]=>
  string(26) "mongodb://127.0.0.1:27017/"
  ["cluster"]=>
  array(0) {
  }
}

Table of Contents


<MongoDB\DriverMongoDB\Driver\Manager::addSubscriber>
^MongoDB\DriverLast updated: Mon, 26 Oct 2026