23 lines
578 B
ReStructuredText
23 lines
578 B
ReStructuredText
``empty``
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=========
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.. versionadded:: 2.3
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Support for the ``__toString()`` magic method has been added in Twig 2.3.
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``empty`` checks if a variable is an empty string, an empty array, an empty
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hash, exactly ``false``, or exactly ``null``.
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For objects that implement the ``Countable`` interface, ``empty`` will check the
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return value of the ``count()`` method.
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For objects that implement the ``__toString()`` magic method (and not ``Countable``),
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it will check if an empty string is returned.
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.. code-block:: twig
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{% if foo is empty %}
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...
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{% endif %}
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