我正在尝试在我的网站上实施类别系统。问题是一个类别可以有孩子。到目前为止,我的桌子category
看起来像这样:
id, name, parent_id
到目前为止,我做了一个循环,但它只适用于 2 个级别。这是我的代码:
for($i=0;$i<count($data);$i++){
$tree[$data[$i]->name] = array();
for($j=0;$j<count($data);$j++){
if($data[$j]->parent_id == $data[$i]->id){
$tree[$data[$i]->name][] = $data[$j]->name;
}
}
}
它返回给我一个数组:
Array
(
[0] => Array
(
[1] => Cat1
[children] => Array
(
[12] => sub cat 1
[13] => sub cat 2
[14] => sub cat 3
)
)
[1] => Array
(
[2] => Cat2
)
[2] => Array
(
[3] => Cat3
)
)
我怎样才能使它高效和递归地拥有更多类似的东西:
Array
(
[0] => Array
(
[1] => Cat1
[children] => Array
(
[12] => sub cat 1
[13] => sub cat 2
[14] => sub cat 3
[children] => Array
(
[1] => sub sub cat 1
)
)
)
[1] => Array
(
[2] => Cat2
)
[2] => Array
(
[3] => Cat3
)
)
谢谢你的帮助
编辑
我正在研究 Zend,它返回给我的data
是:
Zend_Db_Table_Rowset Object
(
[_data:protected] => Array
(
[0] => Array
(
[id] => 1
[name] => Cinema
[type] => category
[slug] => cinema
[parent_id] => -1
)
[1] => Array
(
[id] => 2
[name] => Horror
[type] => category
[slug] => horror
[parent_id] => 1
)