MongoDBModelIndexInfo-getKey.txt

===================================
MongoDB\\Model\\IndexInfo::getKey()
===================================

.. default-domain:: mongodb

.. contents:: On this page
   :local:
   :backlinks: none
   :depth: 1
   :class: singlecol

Definition
----------

.. phpmethod:: MongoDB\\Model\\IndexInfo::getKey()

   Return the index specification (i.e. indexed field(s) and order). This
   correlates with the ``$key`` parameter for
   :phpmethod:`MongoDB\\Collection::createIndex()`.

   .. code-block:: php

      function getKey(): array

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

The index specification as an associative array.

See Also
--------

- :phpmethod:`MongoDB\\Collection::createIndex()`
- :manual:`listIndexes </reference/command/listIndexes>` command reference in
  the MongoDB manual