Eccube\Controller\Install\InstallController::step3 PHP Метод

    public function step3(InstallApplication $app, Request $request)
    {
        $form = $app['form.factory']->createBuilder('install_step3')->getForm();
        $sessionData = $this->getSessionData($request);
        if (empty($sessionData['shop_name'])) {
            $config_file = $this->config_path . '/config.yml';
            $fs = new Filesystem();
            if ($fs->exists($config_file)) {
                // すでに登録されていた場合、登録データを表示
                $this->setPDO();
                $stmt = $this->PDO->query("SELECT shop_name, email01 FROM dtb_base_info WHERE id = 1;");
                foreach ($stmt as $row) {
                    $sessionData['shop_name'] = $row['shop_name'];
                    $sessionData['email'] = $row['email01'];
                }
                // セキュリティの設定
                $config_file = $this->config_path . '/path.yml';
                $config = Yaml::parse(file_get_contents($config_file));
                $sessionData['admin_dir'] = $config['admin_route'];
                $config_file = $this->config_path . '/config.yml';
                $config = Yaml::parse(file_get_contents($config_file));
                $allowHost = $config['admin_allow_host'];
                if (count($allowHost) > 0) {
                    $sessionData['admin_allow_hosts'] = Str::convertLineFeed(implode("\n", $allowHost));
                }
                $sessionData['admin_force_ssl'] = (bool) $config['force_ssl'];
                // メール設定
                $config_file = $this->config_path . '/mail.yml';
                $config = Yaml::parse(file_get_contents($config_file));
                $mail = $config['mail'];
                $sessionData['mail_backend'] = $mail['transport'];
                $sessionData['smtp_host'] = $mail['host'];
                $sessionData['smtp_port'] = $mail['port'];
                $sessionData['smtp_username'] = $mail['username'];
                $sessionData['smtp_password'] = $mail['password'];
            } else {
                // 初期値にmailを設定
                $sessionData['mail_backend'] = 'mail';
            }
        }
        $form->setData($sessionData);
        if ($this->isValid($request, $form)) {
            $data = $form->getData();
            return $app->redirect($app->url('install_step4'));
        }
        return $app['twig']->render('step3.twig', array('form' => $form->createView(), 'publicPath' => '..' . RELATIVE_PUBLIC_DIR_PATH . '/'));
    }