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``attribute``
=============
The ``attribute`` function can be used to access a "dynamic" attribute of a
variable:
.. code-block:: twig
{{ attribute(object, method) }}
{{ attribute(object, method, arguments) }}
{{ attribute(array, item) }}
In addition, the ``defined`` test can check for the existence of a dynamic
attribute:
.. code-block:: twig
{{ attribute(object, method) is defined ? 'Method exists' : 'Method does not exist' }}
.. note::
The resolution algorithm is the same as the one used for the ``.``
notation, except that the item can be any valid expression.
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