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=============================
MongoDB\\ChangeStream::next()
=============================
.. default-domain:: mongodb
.. contents:: On this page
:local:
:backlinks: none
:depth: 1
:class: singlecol
Definition
----------
.. phpmethod:: MongoDB\\ChangeStream::next()
Advances the change stream and attempts to load the next event.
.. code-block:: php
function next(): void
.. note::
Advancing the change stream does not guarantee that there will be a
current event to access. You should still call
:phpmethod:`MongoDB\\ChangeStream::valid()` to check for a current event
at each step of iteration.
Errors/Exceptions
-----------------
.. include:: /includes/extracts/error-driver-runtimeexception.rst
See Also
--------
- :phpmethod:`MongoDB\\Collection::watch()`
- :php:`Iterator::next() <iterator.next>`
- :ref:`Tailable Cursor Iteration <php-tailable-cursor>`
- :manual:`Change Streams </changeStreams>` documentation in the MongoDB manual