MongoDB\Driver\Manager::startSession

(mongodb >=1.4.0)

MongoDB\Driver\Manager::startSession — Start a new client session for use with this client

final public MongoDB\Driver\Session MongoDB\Driver\Manager::startSession ([ array $options ] )

Creates a MongoDB\Driver\Session for the given options. The session may then be specified when executing commands, queries, and write operations.

Note: A MongoDB\Driver\Session can only be used with the MongoDB\Driver\Manager from which it was created.

options

**options**
Option	Type	Description	Default
causalConsistency	boolean	Configure causal consistency in a session. If `TRUE`, each operation in the session will be causally ordered after the previous read or write operation. Set to `FALSE` to disable causal consistency. See » Casual Consistency in the MongoDB manual for more information.	`TRUE`

Returns a MongoDB\Driver\Session.

Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.
Throws MongoDB\Driver\Exception\RuntimeException if the session could not be created (e.g. libmongoc does not support crypto).