minor #9552 [Security] add tip about using custom functions (dmaicher, javiereguiluz)

javiereguiluz · javiereguiluz · commit 0b3df49379ce · 2018-04-19T12:01:11.000+02:00
This PR was merged into the master branch. Discussion ---------- [Security] add tip about using custom functions Since 4.1 its possible to use custom functions inside security `allow_if` expressions. See symfony/symfony#26660 Commits ------- 44708ad Reword 8a96822 [Security] add tip about using custom functions
diff --git a/security/access_control.rst b/security/access_control.rst
@@ -301,6 +301,15 @@ and functions including ``request``, which is the Symfony
 For a list of the other functions and variables, see
 :ref:`functions and variables <security-expression-variables>`.
 
+.. tip::
+
+    The ``allow_if`` expressions can also contain custom functions registered
+    with :ref:`expression providers <components-expression-language-provider>`.
+
+    .. versionadded:: 4.1
+        The feature to use custom functions inside ``allow_if`` expressions was
+        introduced in Symfony 4.1.
+
 Forcing a Channel (http, https)
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