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Nov 26, 2024
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update controller return value #20411

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10 changes: 9 additions & 1 deletion controller.rst
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Expand Up @@ -447,7 +447,7 @@ and provides methods for getting and setting response headers. The header names
normalized. As a result, the name ``Content-Type`` is equivalent to
the name ``content-type`` or ``content_type``.

In Symfony, a controller is required to return a ``Response`` object::
In Symfony, a controller usually returns a ``Response`` object::

use Symfony\Component\HttpFoundation\Response;

Expand All @@ -463,6 +463,14 @@ response types. Some of these are mentioned below. To learn more about the
``Request`` and ``Response`` (and different ``Response`` classes), see the
:ref:`HttpFoundation component documentation <component-http-foundation-request>`.

.. note::

When a controller returns a non-``Response`` object, a ``kernel.view``
listener is expected to transform it into a ``Response`` object;
otherwise an exception is thrown.

See :ref:`kernel.view event <component-http-kernel-kernel-view>` for details on the ``kernel.view`` event.

Accessing Configuration Values
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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