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License

Twig documentation is licensed under the new BSD license.

deprecated

Twig generates a deprecation notice (via a call to the trigger_error() PHP function) where the deprecated tag is used in a template:

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{# base.twig #}
{% deprecated 'The "base.twig" template is deprecated, use "layout.twig" instead.' %}
{% extends 'layout.twig' %}

You can also deprecate a macro in the following way:

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{% macro welcome(name) %}
    {% deprecated 'The "welcome" macro is deprecated, use "hello" instead.' %}

    ...
{% endmacro %}

Note that by default, the deprecation notices are silenced and never displayed nor logged. See Recipes to learn how to handle them.

Note

Don't use the deprecated tag to deprecate a block as the deprecation cannot always be triggered correctly.

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