Elep

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

.. default-domain:: mongodb

.. contents:: On this page
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   :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.

Examples
--------

.. code-block:: php

<?php

$info = new IndexInfo([
       'key' => ['x' => 1],
   ]);

var_dump($info->getKey());

The output would then resemble::

array(1) {
     ["x"]=>
     int(1)
   }