8000 Removed references of 2.2 by wouterj · Pull Request #3240 · symfony/symfony-docs · GitHub
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Removed references of 2.2 #3240

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0675b56
Removed assignment operator
wouterj Nov 29, 2013
e506f01
Added example of range operator
wouterj Nov 29, 2013
0725a8b
Added docs for using functions
wouterj Nov 29, 2013
95c9a4e
Added article about custom functions
wouterj Nov 29, 2013
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Added docs for using functions
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@wouterj
wouterj committed Nov 29, 2013
commit 0725a8b95a5d9aa7ef38b074f5a16e2cfff74fbd
18 changes: 18 additions & 0 deletions components/expression_language/syntax.rst
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Expand Up @@ -81,6 +81,24 @@ JavaScript::

This will print ``Hi Hi Hi!``.

.. _component-expression-functions:

Working with Functions
----------------------

You can also use registered functions in the expression by using the same
syntax as PHP and JavaScript. The ExpressionLanguage component comes with one
function by default: ``constant()`` Which will return the value of the PHP
constant::

define('DB_USER', 'root');

echo $language->evaluate(
'constant("DB_USER")'
);

This will print ``root``.

.. _component-expression-arrays:

Working with Arrays
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