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[ExpressionLanguage] Document the null-coalesce operator changes #19958

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Jun 14, 2024
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[ExpressionLanguage] Document the null-coalesce operator changes #19958

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7 changes: 3 additions & 4 deletions reference/formats/expression_language.rst
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Expand Up @@ -124,11 +124,10 @@ returns the right-hand side. Expressions can chain multiple coalescing operators
* ``foo[3] ?? 'no'``
* ``foo.baz ?? foo['baz'] ?? 'no'``

.. note::
.. versionadded:: 7.2

The main difference with the `null-coalescing operator in PHP`_ is that
ExpressionLanguage will throw an exception when trying to access a
non-existent variable.
Starting from Symfony 7.2, no exception is thrown when trying to access a
non-existent variable. This is the same behavior as the `null-coalescing operator in PHP`_.

.. _component-expression-functions:

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