数据表字段：
Tree.class代码：
<?php
/**
* [无限分级类]
* @Author xiaohao
* @version v1.0
* @time 2014-12-5
*/
// +----------------------------------------------------------------------
namespace Lib;
class Tree {
static public function findChild(&$data, $pid = 0, $col_pid = 'parent') {
$rootList = array();
foreach ($data as $key => $val) {
if ($val[$col_pid] == $pid) {
$rootList[] = $val;
unset($data[$key]);
}
}
return $rootList;
}
/**
* 无限分级
* @access public
* @param array &$data 数据库里取得的结果集 地址引用
* @param integer $pid 父级id的值
* @param string $col_id 自增id字段名（对应&$data里的字段名）
* @param string $col_pid 父级字段名（对应&$data里的字段名）
* @param string $col_cid 是否存在子级字段名（对应&$data里的字段名）
* @return array $childs 返回整理好的数组
*/
static public function getTree(&$data, $pid = 0, $col_id = 'id', $col_pid = 'parent', $col_cid = 'haschild') {
$childs = self::findChild($data, $pid, $col_pid);
if (empty($childs)) {
return null;
}
foreach ($childs as $key => $val) {
if ($val[$col_cid]) {
$treeList = self::getTree($data, $val[$col_id], $col_id, $col_pid, $col_cid);
if ($treeList !== null) {
$childs[$key]['childs'] = $treeList;
}
}
}
return $childs;
}
}控制器中调用： $cateObj = M('category');
$cateRow = $cateObj->order(array('cate_parent'=>'asc'))->select();//查询数据时对parent父级排序
$treeObj = new \Lib\Tree();//引用Tree类
$row = $treeObj->getTree($cateRow,$pid = 0, $col_id = 'cate_id', $col_pid = 'cate_parent', $col_cid = 'cate_haschild');//$col_id,$col_pid,$col_cid对应分类表category中的字段
$this->assign('cateRow', $row);
$this->display('cateList');view模板中调用:按各人的样式自行修改<if condition="!empty($cateRow)">
<php>
function showTree($data) {
echo '<ol class="dd-list">';
foreach ($data as $key => $val) {
echo '<li class="dd-item item-orange " data-id="'.$val[cate_id].'">';
echo '<div class="dd-handle">'.$val['cate_name'];
echo '<div class="pull-right action-buttons">';
echo '<a class="green" data-toggle="modal" href="'.U('Admin/Goods/addCate/?parent='.$val[cate_id]).'" data-target="#myModal">';
echo '<i class="ace-icon fa fa-plus-circle bigger-130"></i></a>';
echo '<a class="blue" data-toggle="modal" href="'.U('Admin/Goods/addCate/?cateid='.$val[cate_id]).'" data-target="#myModal"><i class="ace-icon fa fa-pencil bigger-130"></i></a><a class="red" href="#"><i class="ace-icon fa fa-trash-o bigger-130"></i></a></div></div>';
if (!empty($val['childs'])) {
showTree($val['childs']);
}
echo '</li>';
}
echo '</ol>';
}
showTree($cateRow);
</php>
</if> 最佳答案
