Elep

==============================================
MongoDB\\MapReduceResult::getExecutionTimeMS()
==============================================

.. default-domain:: mongodb

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

Definition
----------

.. phpmethod:: MongoDB\\MapReduceResult::getExecutionTimeMS()

Returns the execution time in milliseconds of the map-reduce operation.

.. code-block:: php

function getExecutionTimeMS(): integer

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

An integer denoting the execution time in milliseconds for the map-reduce
operation.

Examples
--------

This example reports the execution time for a map-reduce operation.

.. code-block:: php

<?php

$collection = (new MongoDB\Client)->test->zips;

$map = new MongoDB\BSON\Javascript('function() { emit(this.state, this.pop); }');
   $reduce = new MongoDB\BSON\Javascript('function(key, values) { return Array.sum(values) }');
   $out = ['inline' => 1];

$result = $collection->mapReduce($map, $reduce, $out);

var_dump($result->getExecutionTimeMS());

The output would then resemble::

int(244)