Contao\Session::set PHP Méthode

    public function set($strKey, $varValue)
    {
        // Map the referer (see #281)
        if (in_array($strKey, $this->mappedKeys)) {
            $this->session->set($strKey, $varValue);
        } else {
            $this->sessionBag->set($strKey, $varValue);
        }
    }