SlimServices\ServiceManager::registerServices PHP Method

    public function registerServices(array $services)
    {
        foreach ($services as $service) {
            $this->register(new $service($this));
        }
    }

 /**
  * Register all service provider
  */
 public static function ServiceProviders()
 {
     $services = new ServiceManager(self::$app);
     $services->registerServices(array('Illuminate\\Events\\EventServiceProvider', 'Illuminate\\Database\\DatabaseServiceProvider'));
 }