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=================================
MongoDB\\Collection::deleteMany()
=================================
.. default-domain:: mongodb
.. contents:: On this page
:local:
:backlinks: none
:depth: 1
:class: singlecol
Definition
----------
.. phpmethod:: MongoDB\\Collection::deleteMany()
Deletes all documents that match the filter criteria.
.. code-block:: php
function deleteMany($filter, array $options = []): MongoDB\DeleteResult
This method has the following parameters:
.. include:: /includes/apiargs/MongoDBCollection-method-deleteMany-param.rst
The ``$options`` parameter supports the following options:
.. include:: /includes/apiargs/MongoDBCollection-method-deleteMany-option.rst
Return Values
-------------
A :phpclass:`MongoDB\\DeleteResult` object, which encapsulates a
:php:`MongoDB\\Driver\\WriteResult <class.mongodb-driver-writeresult>` object.
Errors/Exceptions
-----------------
.. include:: /includes/extracts/error-unsupportedexception.rst
.. include:: /includes/extracts/error-invalidargumentexception.rst
.. include:: /includes/extracts/error-driver-bulkwriteexception.rst
.. include:: /includes/extracts/error-driver-runtimeexception.rst
Behavior
--------
.. include:: /includes/extracts/note-bson-comparison.rst
.. include:: /includes/extracts/bulkwriteexception-result.rst
Example
-------
The following example deletes all of the documents in the ``users`` collection
that have ``"ny"`` as the value for the ``state`` field:
.. code-block:: php
<?php
$collection = (new MongoDB\Client)->test->users;
$collection->drop();
$collection->insertOne(['name' => 'Bob', 'state' => 'ny']);
$collection->insertOne(['name' => 'Alice', 'state' => 'ny']);
$deleteResult = $collection->deleteMany(['state' => 'ny']);
printf("Deleted %d document(s)\n", $deleteResult->getDeletedCount());
The output would then resemble::
Deleted 2 document(s)
See Also
--------
- :phpmethod:`MongoDB\\Collection::deleteOne()`
- :phpmethod:`MongoDB\\Collection::bulkWrite()`
- :doc:`/tutorial/crud`
- :manual:`delete </reference/command/delete` command reference in the MongoDB
manual