(mongodb >=1.5.0)
MongoDB\Driver\Session::endSession — Terminates a session
This method closes an existing session. If a transaction was associated with this session, the transaction will be aborted. After calling this method, applications should not invoke other methods on the session.
Note: Sessions are also closed during garbage collection. It should not be necessary to call this method under normal circumstances.
This function has no parameters.
No value is returned.