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Documentation for debug:event-dispatcher command #4319

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Nov 3, 2014
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Documentation for debug:event-dispatcher command #4319

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17 changes: 17 additions & 0 deletions cookbook/service_container/event_listener.rst
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Expand Up @@ -133,3 +133,20 @@ done as follow::
Two types of request are available in the :class:`Symfony\\Component\\HttpKernel\\HttpKernelInterface`
interface: ``HttpKernelInterface::MASTER_REQUEST`` and
``HttpKernelInterface::SUB_REQUEST``.

Debugging Event Listeners
-------------------------

You can find out what listeners are registered in the event dispatcher
using the console. To show all events and their listeners, run:

.. code-block:: bash

$ php app/console debug:event-dispatcher

You can get registered listeners for a particular event by specifying
its name:

.. code-block:: bash

$ php app/console debug:event-dispatcher kernel.exception