language_name

New in version 2.12: The language_name filter was added in Twig 2.12.

The language_name filter returns the language name given its two-letter code:

{# German #}
{{ 'de'|language_name }}

By default, the filter uses the current locale. You can pass it explicitly:

{# allemand #}
{{ 'de'|language_name('fr') }}

{# français canadien #}
{{ 'fr_CA'|language_name('fr_FR') }}

Note

The language_name filter is part of the IntlExtension which is not installed by default. Install it first:

$ composer require twig/intl-extra

Then, use the twig/extra-bundle on Symfony projects or add the extension explicitly on the Twig environment:

use Twig\Extra\Intl\IntlExtension;

$twig = new \Twig\Environment(...);
$twig->addExtension(new IntlExtension());

Arguments

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https://twig.symfony.com/doc/2.x/filters/language_name.html