class Container{

        private $_test = array();

        public function test($test)
        {
            $closure = function($arg){
                return $this->_test['by_closure'] = $arg;
            };


            print_r($closure);

            return $closure($test);
        }
   }


   $container = new Container;

   $container->test(111);

//Closure Object ( [this] => Container Object ( [_test:Container:private] => Array ( ) ) [parameter] => Array ( [$arg] => ) )