Same name and namespace in other branches

1. 9 core/modules/language/src/Plugin/LanguageNegotiation/LanguageNegotiationSession.php \Drupal\language\Plugin\LanguageNegotiation\LanguageNegotiationSession::getLangcode()
2. 8.9.x core/modules/language/src/Plugin/LanguageNegotiation/LanguageNegotiationSession.php \Drupal\language\Plugin\LanguageNegotiation\LanguageNegotiationSession::getLangcode()
3. 11.x core/modules/language/src/Plugin/LanguageNegotiation/LanguageNegotiationSession.php \Drupal\language\Plugin\LanguageNegotiation\LanguageNegotiationSession::getLangcode()

Performs language negotiation.

@todo Determine whether string|false or string|null should be the normalized result across all implementations and update the

Parameters

\Symfony\Component\HttpFoundation\Request $request: (optional) The current request. Defaults to NULL if it has not been initialized yet.

Return value

string|null|false A valid language code if the negotiation was successful and either NULL or FALSE otherwise.

and its comment accordingly.

Overrides LanguageNegotiationMethodInterface::getLangcode

File

core/modules/language/src/Plugin/LanguageNegotiation/LanguageNegotiationSession.php, line 85

Class

LanguageNegotiationSession

Identify language from a request/session parameter.

Namespace

Drupal\language\Plugin\LanguageNegotiation

Code

public function getLangcode(?Request $request = NULL) {
  $config = $this->config
    ->get('language.negotiation')
    ->get('session');
  if (($param = $config['parameter']) && $request) {
    if ($request->query
      ->has($param)) {
      return $request->query
        ->get($param);
    }
    if ($request->getSession()
      ->has($param)) {
      return $request->getSession()
        ->get($param);
    }
  }
  return NULL;
}

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