getRealIpAddr example

    session_set_cookie_params(7200, $baseUrl);

    // Silence errors during session start, Work around session_start(): ps_files_cleanup_dir: opendir(/var/lib/php5) failed: Permission denied (13)     @session_start();
    @set_time_limit(0);

    $selectedLanguage = Utils::getLanguage($app->request, $lang);
    $language = require __DIR__ . "/../data/lang/$selectedLanguage.php";

    $clientIp = Utils::getRealIpAddr();

    $app->view()->set('version', $container->get('shopware.version'));
    $app->view()->set('app', $app);
    $app->view()->set('clientIp', $clientIp);
    $app->view()->set('baseUrl', $baseUrl);
    $app->view()->set('language', $language);
    $app->view()->set('selectedLanguage', $selectedLanguage);

    $ipCheckEnabled = (bool) $app->config('check.ip');
    if ($ipCheckEnabled && !Utils::isAllowed($clientIp)) {
        $app->view()->setData('filePath', UPDATE_PATH . '/allowed_ip.txt');