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add missing twig dump construct #9042

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Jan 12, 2018
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add missing twig dump construct #9042

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af6b4de
add missing twig dump construct
hellomedia Jan 12, 2018
6e4f084
Minor reword
javiereguiluz Jan 12, 2018
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15 changes: 13 additions & 2 deletions templating/debug.rst
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Expand Up @@ -33,14 +33,25 @@ for example, inside your controller::
The output of the ``dump()`` function is then rendered in the web developer
toolbar.

The same mechanism can be used in Twig templates thanks to ``dump()`` function:
In a Twig template, you can use the ``dump`` utility as a function or a tag:

* ``{% dump foo.bar %}`` is the way to go when the original template output
shall not be modified: variables are not dumped inline, but in the web
debug toolbar;
* on the contrary, ``{{ dump(foo.bar) }}`` dumps inline and thus may or not
be suited to your use case (e.g. you shouldn't use it in an HTML
attribute or a ``<script>`` tag).

.. code-block:: html+twig

{# app/Resources/views/article/recent_list.html.twig #}
{{ dump(articles) }}
{# the contents of this variable are sent to the Web Debug Toolbar #}
{% dump articles %}

{% for article in articles %}
{# the contents of this variable are display on the web page #}
{{ dump(article) }}

<a href="/article/{{ article.slug }}">
{{ article.title }}
</a>
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