$goods = array(
            array('fee'=>100,'money'=>10),
            array('fee'=>200,'money'=>20),
            array('fee'=>300,'money'=>30),
            array('fee'=>500,'money'=>50),
            );
        dump($goods);
        
        $bbb= array();
        for($i=0;$i<ceil(count($goods)/3);$i++)
        {
              $bbb[] = array_slice($goods, $i * 3 ,3);
        }
        $this->goods = $bbb;