[github/wallabag/wallabag.git] / vendor / twig / twig / doc / functions / constant.rst

``constant``
============

.. versionadded: 1.12.1
    constant now accepts object instances as the second argument.

``constant`` returns the constant value for a given string:

.. code-block:: jinja

    {{ some_date|date(constant('DATE_W3C')) }}
    {{ constant('Namespace\\Classname::CONSTANT_NAME') }}

As of 1.12.1 you can read constants from object instances as well:

.. code-block:: jinja

    {{ constant('RSS', date) }}
Commit	Line	Data
4f5b44bd NL	1	``constant``
	2	============
	3
	4	.. versionadded: 1.12.1
	5	constant now accepts object instances as the second argument.
	6
	7	``constant`` returns the constant value for a given string:
	8
	9	.. code-block:: jinja
	10
	11	{{ some_date\|date(constant('DATE_W3C')) }}
	12	{{ constant('Namespace\\Classname::CONSTANT_NAME') }}
	13
	14	As of 1.12.1 you can read constants from object instances as well:
	15
	16	.. code-block:: jinja
	17
	18	{{ constant('RSS', date) }}