MongoDB\Collection::__construct()

Definition

MongoDB\Collection::__construct()

Constructs a new Collection instance.

function __construct(
    MongoDB\Driver\Manager $manager,
    string $databaseName,
    string $collectionName,
    array $options = []
)

This constructor has the following parameters:

$manager : MongoDB\Driver\Manager

The Manager instance from the driver. The manager maintains connections between the driver and your MongoDB instances.

$databaseName : string

The name of the database.

$collectionName : string

The name of the collection.

$options : array

An array specifying the desired options.

Name	Type	Description
codec	MongoDB\Codec\DocumentCodec	The default codec to use for collection operations. New in version 1.17.
readConcern	MongoDB\Driver\ReadConcern	The default read concern to use for collection operations. Defaults to the manager's read concern.
readPreference	MongoDB\Driver\ReadPreference	The default read preference to use for collection operations. Defaults to the manager's read preference.
typeMap	array	Default type map to apply to cursors, which determines how BSON documents are converted to PHP values. The library uses the following type map by default: [ 'array' => 'MongoDB\Model\BSONArray', 'document' => 'MongoDB\Model\BSONDocument', 'root' => 'MongoDB\Model\BSONDocument', ]
writeConcern	MongoDB\Driver\WriteConcern	The default write concern to use for collection operations. Defaults to the manager's write concern.

Errors/Exceptions

MongoDB\Exception\InvalidArgumentException for errors related to the parsing of parameters or options.

Behavior

If you construct a Collection explicitly, the Collection inherits any options from the MongoDB\Driver\Manager object. If you select the Collection from a Client or Database object, the Collection inherits its options from that object.

See Also

• MongoDB\Collection::withOptions()

• MongoDB\Client::selectCollection()

• MongoDB\Database::selectCollection()

• MongoDB\Database::__get()