ecshop商城查看全部商品分类中的商品数量不正确怎么修复

foreach ($cat_list AS $key=>$val)
{
if ($val['is_show'] == 0)
{
unset($cat_list[$key]);
}
}

foreach ($cat_list AS $key=>$val)
{
if ($val['is_show'] == 0)
{
unset($cat_list[$key]);
}else{
$cat_list[$key]['goods_num'] = calculate_goods_num($cat_list,$val['id'])+$val['goods_num'];
}
}