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[Routing] doc for env() function in route condition #16610

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Mar 25, 2022
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[Routing] doc for env() function in route condition #16610

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5 changes: 5 additions & 0 deletions routing.rst
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Expand Up @@ -414,6 +414,11 @@ and can use any of these variables created by Symfony:
The :ref:`Symfony Request <component-http-foundation-request>` object that
represents the current request.

Additionnal functions are provided:

``env(string $name)``
Read a variable using :doc:`Environment Variable Processors <configuration/env_var_processors>`

Behind the scenes, expressions are compiled down to raw PHP. Because of this,
using the ``condition`` key causes no extra overhead beyond the time it takes
for the underlying PHP to execute.
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