Same name and namespace in other branches

1. 8.9.x core/lib/Drupal/Core/Session/UserSession.php \Drupal\Core\Session\UserSession::getPreferredLangcode()
2. 10 core/lib/Drupal/Core/Session/UserSession.php \Drupal\Core\Session\UserSession::getPreferredLangcode()
3. 11.x core/lib/Drupal/Core/Session/UserSession.php \Drupal\Core\Session\UserSession::getPreferredLangcode()

Returns the preferred language code of the account.

Parameters

bool $fallback_to_default: (optional) Whether the return value will fall back to the site default language if the user has no language preference.

Return value

string Returned language code depends upon following:

• The user preferred language code is returned if set in the account.
• If the user has no preferred language and $fallback_to_default is TRUE then the site default language code is returned.
• If the user has no preferred language and $fallback_to_default is FALSE then empty string is returned.

Overrides AccountInterface::getPreferredLangcode

File

core/lib/Drupal/Core/Session/UserSession.php, line 132

Class

UserSession

An implementation of the user account interface for the global user.

Namespace

Drupal\Core\Session

Code

public function getPreferredLangcode($fallback_to_default = TRUE) {
    $language_list = \Drupal::languageManager()->getLanguages();
    if (!empty($this->preferred_langcode) && isset($language_list[$this->preferred_langcode])) {
        return $language_list[$this->preferred_langcode]
            ->getId();
    }
    else {
        return $fallback_to_default ? \Drupal::languageManager()->getDefaultLanguage()
            ->getId() : '';
    }
}

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