fkooman\RemoteStorage\Test\TestAuthorizationCode::retrieveAuthorizationCode PHP Method

    public function retrieveAuthorizationCode($authorizationCode)
    {
        $data = Json::decode(Base64Url::decode($authorizationCode));
        return new AuthorizationCode($data['client_id'], $data['user_id'], $data['issued_at'], $data['redirect_uri'], $data['scope']);
    }