public function onBootstrap(MvcEvent $e)
    {
        $config = $e->getApplication()->getServiceManager()->get('Config');
        if (!empty($config[$this->configKey])) {
            $phpSettings = (array) $config[$this->configKey];
            foreach($phpSettings as $key => $value) {
                @ini_set($key, $value);
            }
        }
    }