========================================= MongoDB\\InsertOneResult::getInsertedId() ========================================= .. default-domain:: mongodb .. contents:: On this page :local: :backlinks: none :depth: 1 :class: singlecol Definition ---------- .. phpmethod:: MongoDB\\InsertOneResult::getInsertedId() Return the ID (i.e. ``_id`` field value) for the inserted document. .. code-block:: php function getInsertedId(): mixed Since IDs are created by the driver, this method may be called irrespective of whether the write was acknowledged. Return Values ------------- The ID (i.e. ``_id`` field value) of the inserted document. If the document had an ID prior to inserting (i.e. the driver did not need to generate an ID), this will contain its ``_id`` field value. Any driver-generated ID will be a :php:`MongoDB\\BSON\\ObjectId <class.mongodb-bson-objectid>` instance.