Get current language in template

Question

In Drupal 7 the current language is a global variable we can access with

global $language;
$langcode = $language->language; 

I want to know how can we access the current language in a Twig file in Drupal 8 (in page--front.html.twig for example)?

Answer 1

I found my answer and post it here so maybe it helps others later.

First, in MYTHEME.theme:

In Drupal 8.2 language got added to page the variables in template_preprocess_page. But in my current version 8.1 it didn't exist so I added it with:

function MYTHEME_preprocess_page(&$vars) {

  $language = \Drupal::languageManager()->getCurrentLanguage()->getId();
  $vars['language'] = $language;
}

Then in my Twig file I use {{ language }}. Also I can get the language name with {{ language.getName() }}.

Update

After Drupal 8.2 a global variable language exists and now there's no more need to add it first.

{% if language.getId() == 'en' %}
  Do something
{% else %}
  Do something else
{% endif %}

Update Thanks @Lucas for his comment

on Drupal > 8.7.5

{% if language.getId() == 'en' %} should be {% if language == 'en' %} 

Answer 2

On Drupal version 8.2.3 the language variable is already available in Twig templates. A usage example is this:

{% if language.getId() == 'en' %}
  Do something
{% else %}
  Do something else
{% endif %}

Answer 3

{{ language }} works but only in page context.

The example of this question(page--front.html.twig) happens to be a working one.

I tried in 8.7.6 with Xdebug. When called from somewhere other than page.html.twig it will returns a null instead of {Drupal\Core\Language\Language}

I think that's why some people report it working but others not. You might use it under node.html.twig or something. In this case you still need to provide that under preprocess() function of your theme.

Answer 4

In page.html.twig and Drupal 8.7.6, I had to use:

{% if language.id == 'en' %} or {{ language.id == 'en' ? 'active' : 'not-active' }}

Other suggestions did not work.

Answer 5

I was trying to display the language to the user in the user native language, so I was trying to display "Français" instead of "French" and this was the answer if it might help someone:

Inside a preprocess function:

    // Get the current content language in native form.
    $language_id = \Drupal::languageManager->getCurrentLanguage('language_content')->getId();
    $native_language = \Drupal::languageManager()->getNativeLanguages()[$language_id];
    $variables['current_language_name'] = $native_language->getName();
  

Inside a twig template:

{{ current_language_name }}