Array
(
[0] => Array
(
[cat_id] => 5
[cat_name] => 活动剪影
[cat_name_en] =>
[show_mode] => 0
[image] => 139970516029714.png
[level] => 1
[parent_id] => 0
[arrparent_id] =>
[child] => 0
[arrchild_id] =>
[listorder] => 2
[status] => 1
[create_time] => 1399625533
[childs] => Array
(
[0] => Array
(
[cat_id] => 9
[cat_name] => test4
[cat_name_en] =>
[show_mode] => 0
[image] =>
[level] => 2
[parent_id] => 5
[arrparent_id] =>
[child] => 0
[arrchild_id] => ,17
[listorder] => 0
[status] => 1
[create_time] => 1400121966
[childs] => Array
(
[0] => Array
(
[cat_id] => 17
[cat_name] => ａａａａａ
[cat_name_en] =>
[show_mode] => 0
[image] =>
[level] => 3
[parent_id] => 9
[arrparent_id] =>
[child] => 0
[arrchild_id] =>
[listorder] => 0
[status] => 1
[create_time] => 1400210036
[childs] => Array
(
)
)
)
)
)
)
[1] => Array
(
[cat_id] => 1
[cat_name] => 慈善故事
[cat_name_en] =>
[show_mode] => 0
[image] =>
[level] => 1
[parent_id] => 0
[arrparent_id] =>
[child] => 0
[arrchild_id] =>
[listorder] => 0
[status] => 1
[create_time] => 1399515126
[childs] => Array
(
)
以上不是全代码，数据结构大概是这样
他们的关系是 parent_id记录上一级id
要弄成以下这样的
求大神
