php 分类 菜单 树形显示

添加功能调用方法显示一级菜单以及所有子菜单

 public function add()
    {
        $menus_list = $this->db->table('admin_menus')->where(array('status'=>0))->cates('mid');
        $menus = $this->getTreeItems($menus_list);
        $result = array();
        foreach ($menus as $value){
            $value['children'] = isset($value['children']) ? $this->formatMenus($value['children']) :false;
            $result[] = $value ;
        }

        $this->view->assign('menus',$result);
        return $this->view->fetch('add');

    }

    //树形显示所有菜单
    private function getTreeItems($items){
        $tree = array();
        foreach ($items as $item){
            if (isset($items[$item['pid']])){
                $items[$item['pid']]['children'][]=&$items[$item['mid']];
            }
            else{
                $tree[] = &$items[$item['mid']];
            }
        }
        return $tree;
    }


    // 除了顶级菜单  都是二级显示
    private function formatMenus($items ,&$res=array()){
        foreach ($items as $item){
            if (!isset($item['children'])){
                $res[] = $item;
            }
            else{
                $tem = $item['children'];
                unset($item['children']);
                $res[] = $item;
                $this->formatMenus($tem , $res);
            }
        }
        return $res;

    }

前台代码

            权限菜单
                {volist id="vo" name="menus"}
                    

                        

                            
                            
                            {volist id="cvo" name="vo.children"}
                            
                            {/volist}
                        
                    
                {/volist}
        

成品样式