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File: /_sources/modules/zend.filter.digits.txt

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.. _zend.filter.set.digits:

Digits
------

Returns the string ``$value``, removing all but digits.

.. _zend.filter.set.digits.options:

Supported Options
^^^^^^^^^^^^^^^^^

There are no additional options for ``Zend\Filter\Digits``.

.. _zend.filter.set.digits.basic:

Basic Usage
^^^^^^^^^^^

A basic example of usage is below:

.. code-block:: php
   :linenos:

   $filter = new Zend\Filter\Digits();

   print $filter->filter('October 2012');

This returns "2012".

.. code-block:: php
   :linenos:

   $filter = new Zend\Filter\Digits();

   print $filter->filter('HTML 5 for Dummies');

This returns "5".



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