a SensioLabs Product

The flexible, fast, and secure
template engine for PHP

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

Questions & Feedback

License

Twig documentation is licensed under the new BSD license.

constantΒΆ

constant checks if a variable has the exact same value as a constant. You can use either global constants or class constants:

1
2
3
{% if post.status is constant('Post::PUBLISHED') %}
    the status attribute is exactly the same as Post::PUBLISHED
{% endif %}

You can test constants from object instances as well:

1
2
3
{% if post.status is constant('PUBLISHED', post) %}
    the status attribute is exactly the same as Post::PUBLISHED
{% endif %}
Website powered by Symfony and Twig, deployed on
The Twig logo is © 2010-2017 SensioLabs