empty

You are reading the documentation for Twig 1.x. Switch to the documentation for Twig 2.x, 3.x.

Warning Twig version 1.x is no longer maintained.

Found a typo or an error?
Want to improve this document? Edit it.

Need support or have a technical question?
Ask support on Stack Overflow.

Twig documentation is licensed under the new BSD license.

`empty`

1.33

Support for the __toString() magic method has been added in Twig 1.33.

empty checks if a variable is an empty string, an empty array, an empty hash, exactly false, or exactly null.

For objects that implement the Countable interface, empty will check the return value of the count() method.

For objects that implement the __toString() magic method (and not Countable), it will check if an empty string is returned.

        1
2
3
        {% if foo is empty %}
    ...
{% endif %}
    