Twig

The flexible, fast, and secure
template engine for PHP

a Symfony Product
Docs Filters upper
You are reading the documentation for Twig 2.x. Switch to the documentation for Twig 1.x. 3.x.
Warning Twig version 2.x is no longer maintained.

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License

Twig documentation is licensed under the new BSD license.

upper

The upper filter converts a value to uppercase:

1
2
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{{ 'welcome'|upper }}

{# outputs 'WELCOME' #}