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==================================
MongoDB\\Model\\IndexInfo::isTtl()
==================================
.. default-domain:: mongodb
.. contents:: On this page
:local:
:backlinks: none
:depth: 1
:class: singlecol
Definition
----------
.. phpmethod:: MongoDB\\Model\\IndexInfo::isTtl()
Return whether the index is a :manual:`TTL index </core/index-ttl>`. This
correlates with the ``expireAfterSeconds`` option for
:phpmethod:`MongoDB\\Collection::createIndex()`.
.. code-block:: php
function isTtl(): boolean
Return Values
-------------
A boolean indicating whether the index is a TTL index.
Examples
--------
.. code-block:: php
<?php
$info = new IndexInfo([
'expireAfterSeconds' => 100,
]);
var_dump($info->isTtl());
The output would then resemble::
bool(true)
See Also
--------
- :phpmethod:`MongoDB\\Collection::createIndex()`
- :manual:`listIndexes </reference/command/listIndexes>` command reference in
the MongoDB manual
- :manual:`TTL Indexes </core/index-ttl>` in the MongoDB manual