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MongoDB\\BulkWriteResult::getModifiedCount()
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.. default-domain:: mongodb

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Definition
----------

.. phpmethod:: MongoDB\\BulkWriteResult::getModifiedCount()

   Return the total number of documents that were modified by all update and
   replace operations in the bulk write.

   .. code-block:: php

      function getModifiedCount(): integer|null

   This method should only be called if the write was acknowledged.

   .. note::

      If an update/replace operation results in no change to the document
      (e.g. setting the value of a field to its current value), the modified
      count may be less than the value returned by :phpmethod:`getMatchedCount()
      <MongoDB\\BulkWriteResult::getMatchedCount()>`.

Return Values
-------------

The total number of documents that were modified by all update and replace
operations in the bulk write.

The modified count is not available on versions of MongoDB before 2.6, which
used the legacy wire protocol version (i.e. ``OP_UPDATE``). If this is the case,
the modified count will be ``null``.

Errors/Exceptions
-----------------

.. include:: /includes/extracts/error-badmethodcallexception-write-result.rst

See Also
--------

- :phpmethod:`MongoDB\\BulkWriteResult::getMatchedCount()`
- :php:`MongoDB\\Driver\\WriteResult::getModifiedCount()
  <manual/en/mongodb-driver-writeresult.getmodifiedcount.php>`