php目录树有关问题,求解答,感激不尽

      Array
(
    [0] => Array
        (
            [cid] => 1
            [pid] => 0
            [mid] => 1
            [sequence] => 0
            [show] => 1
            [type] => 0
            [name] => 新闻中心
            [urlname] => xinwenzhongxin
            [subname] => 
            [image] => 
            [class_tpl] => list.html
            [content_tpl] => content.html
            [page] => 10
            [keywords] => 
            [description] => 
            [seo_content] => 
            [content_order] => updatetime DESC
            [lang] => 1
            [expand] => 0
            [model] => content
            [mname] => 新闻
            [admin_category] => content_category
            [admin_content] => content
            [cname] => 新闻中心
        )

    [1] => Array
        (
            [cid] => 2
            [pid] => 1
            [mid] => 1
            [sequence] => 0
            [show] => 1
            [type] => 1
            [name] => 行业新闻
            [urlname] => xingyexinwen
            [subname] => 
            [image] => 
            [class_tpl] => list.html
            [content_tpl] => content.html
            [page] => 10
            [keywords] => 
            [description] => 
            [seo_content] => 
            [content_order] => updatetime DESC
            [lang] => 1
            [expand] => 0
            [model] => content
            [mname] => 新闻
            [admin_category] => content_category
            [admin_content] => content
            [cname] =>   行业新闻
        )

    [2] => Array
        (
            [cid] => 7
            [pid] => 2
            [mid] => 1
            [sequence] => 0