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Jan 12, 2018
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Mention the official Twig extensions #9035

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12 changes: 12 additions & 0 deletions templating/twig_extension.rst
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Expand Up @@ -8,6 +8,17 @@ If you need to create custom Twig functions, filters, tests or more, you'll need
to create a Twig extension. You can read more about `Twig Extensions`_ in the Twig
documentation.

.. tip::

Before writing your own Twig extension, check if the filter/function that
you need is already implemented in the :doc:`Symfony Twig extensions </reference/twig_reference>`.
Check also the `official Twig extensions`_, which can be installed in your
application as follows:

.. code-block:: terminal

$ composer require twig/extensions

Create the Extension Class
--------------------------

Expand Down Expand Up @@ -62,6 +73,7 @@ you're done! Symfony will automatically know about your new service and add the

You can now start using your filter in any Twig template.

.. _`official Twig extensions`: https://github.com/twigphp/Twig-extensions
.. _`Twig extensions documentation`: http://twig.sensiolabs.org/doc/advanced.html#creating-an-extension
.. _`global variables`: http://twig.sensiolabs.org/doc/advanced.html#id1
.. _`functions`: http://twig.sensiolabs.org/doc/advanced.html#id2
Expand Down