数据库:
遍历函数:
public function tree($parentId = 0)
{
$rows = Category::where('parentId', $parentId)->get()->toArray();
$arr = array();
if (sizeof($rows) != 0){
foreach ($rows as $key => $val){
$val['list'] = $this->tree($val['id']);
$arr[] = $val;
}
return $arr;
}
}