Smarty之foreach

今天碰到个4维数组，需要用foreach 的到正确的值。

$smarty->assign("catelog_tree", get_hot_goods_tree());//用户自定义热门分类

echo "<pre>";
    print_r(get_hot_goods_tree());
    
    exit;

get_hot_goods_tree():打印出的数组结果如下:

Array
(
    [56] => Array
        (
            [name] => 夏季衣服
            [url] => nav_cat.php?act=夏季衣服
            [cat_id] => Array
                (
                    [13] => Array
                        (
                            [name] => 裤子
                            [url] => category.php?id=13
                        )

                    [31] => Array
                        (
                            [name] => 内衣内裤
                            [url] => category.php?id=31
                        )

                    [32] => Array
                        (
                            [name] => 内衣裤
                            [url] => category.php?id=32
                        )

                    [38] => Array
                        (
                            [name] => 套装
                            [url] => category.php?id=38
                        )

                    [50] => Array
                        (
                            [name] => 带帽厚棉衣
                            [url] => category.php?id=50
                        )

                    [60] => Array
                        (
                            [name] => 圆领毛衣
                            [url] => category.php?id=60
                        )

                )

        )

)

前台需要得到产品目录名和url


{foreach from= $catelog_tree item=cat }
<a href={$cat.url}>{$car.name}</a>
{foreach from=$cat.cat_id item=child}
<a href={$child.url}>{$child.name}</a>
{/foreach} 
{/foreach}

按smarty手册上面说的:

from ->array_expression   item->value   key->key

意思是 item对应的是当前元素的value，key对应的是当前元素的key