1.直接显示没有层级显示区别
public function tree($userinfo, $id, &$children, $ds = 0, $level = 0)
{
if (!$id) {
return 'parent_id is null';
}
$level++;
foreach ($userinfo as $key => $value) {
if ($ds) {
if ($level > $ds) continue;
}
if ($value['parent_id'] == $id) {
$children[] = ['id' => $value['id'], "parent_id" => $value['parent_id'], "level" => $level];
// $children[] = $value['id'].$value['parent_id'];
$this->findBottoms($userinfo, $value['id'], $children, $ds, $level);
}
}
return $children;
}
2.有明显的层级区分
public function tree($arrCat, $pid = 0, $dj = 0)
{
$child = ["sum" => 0, 'uid' => $pid]; // 定义存储子级数据数组
foreach ($arrCat as $key => $value) {
if ($value['pid'] == $pid) {
$child['sum'] += $this->model->where(['id' => $value['id']])->value('money');
unset($arrCat[$key]); // 使用过后可以销毁
$value['child'] = $this->tree_levle($arrCat, $value['id']); // 递归调用，查找当前数据的子级
$child[] = $value; // 把子级数据添加进数组
}
}
return $child;
}
