function LanguageNegotiationSession::getLangcode

Overrides LanguageNegotiationMethodInterface::getLangcode

File

core/modules/language/src/Plugin/LanguageNegotiation/LanguageNegotiationSession.php, line 55

Class

LanguageNegotiationSession

Identify language from a request/session parameter.

Namespace

Code

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