Edit on GitHub
Jump to docs navigation

Twig Components / Methods / constant

Note: You are currently reading the documentation for Bolt 5.0. Looking for the documentation for Bolt 5.2 instead?

constant is Twig function to return the constant value for a given string:

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

You can read constants from object instances as well:

{{ constant('RSS', date) }}

Use the defined test to check if a constant is defined:

{% if constant('SOME_CONST') is defined %}
    ...
{% endif %}

Source: Twig



Edit this page on GitHub
Couldn't find what you were looking for? We are happy to help you in the forum, on Slack or on Github.