Usage

This twig extension is to write the human readable names of the 2 or 5 letter locale codes (eg: en or en_GB)

Ideal to use with the language picker as you can pass the locale as second parameter to display the locale name on that language

Require as dependency

    composer require alaczi/twig-locale-name-extension

Register the extension

PHP

    $filter = new \alaczi\Twig\Extension\LocaleNameExtension();
    $twig = new Twig_Environment($loader);
    $twig->addFilter($filter);

Symfony 2

services:
    alaczi.twig.country_extension:
        class: alaczi\Twig\Extension\LocaleNameExtension
        tags:
            - { name: twig.extension }

Silex

    $app['twig'] = $app->share($app->extend('twig', function ($twig, $app) {
        /** @var \Twig_Environment $twig */
        $twig->addExtension(new \alaczi\Twig\Extension\LocaleNameExtension())
        return $twig;
    }));

Usage in twig

Using the current locale:

    {{ locale|locale_name }}

Using an other locale (eg: for language pickers)

    {{ locale|locale_name(locale) }}