今天突然想用到这个功能 结果百度到的 基本是写乱糟糟的一堆代码 无奈只好亲自操刀
话不多说，先上代码：
class Tools{
public static function listToTree($data,$pid = 0){
$arr = array_filter($data,function ($v) use ($pid){
if($pid == $v['pid']){
return true;
}
return false;
});
$arr = array_values($arr);
$tools = __CLASS__ ;
$res = array_map(function ($v) use ($data,$tools){
$v['children'] = $tools::listToTree($data,$v['id']);
return $v;
},$arr);
return $res;
}
}
测试数据如下：
$list = [
{
"id": 1,
"notice": "订单管理",
"level": 1,
"pid": 0,
"path": "-1"
},
{
"id": 2,
"notice": "产品管理",
"level": 1,
"pid": 0,
"path": "-2"
},
{
"id": 3,
"notice": "权限管理",
"level": 1,
"pid": 0,
"path": "-3"
},
{
"id": 4,
"notice": "订单列表",
"level": 2,
"pid": 1,
"path": "-1-4"
},
{
"id": 5,
"notice": "退款管理",
"level": 2,
"pid": 1,
"path": "-1-5"
},
{
"id": 6,
"notice": "产品列表",
"level": 2,
"pid": 2,
"path": "-2-6"
},
{
"id": 7,
"notice": "产品分类",
"level": 2,
"pid": 2,
"path": "-2-7"
},
{
"id": 8,
"notice": "用户管理",
"level": 2,
"pid": 3,
"path": "-3-8"
},
{
"id": 9,
"notice": "角色管理",
"level": 2,
"pid": 3,
"path": "-3-9"
},
{
"id": 10,
"notice": "菜单管理",
"level": 2,
"pid": 3,
"path": "-3-10"
}
];
var_dump(Tools::listToTree($list));
结果：
[ { "id": 1, "notice": "订单管理", "level": 1, "pid": 0, "path": "-1", "children": [ { "id": 4, "notice": "订单列表", "level": 2, "pid": 1, "path": "-1-4", "children": [] }, { "id": 5, "notice": "退款管理", "level": 2, "pid": 1, "path": "-1-5", "children": [] } ] }, { "id": 2, "notice": "产品管理", "level": 1, "pid": 0, "path": "-2", "children": [ { "id": 6, "notice": "产品列表", "level": 2, "pid": 2, "path": "-2-6", "children": [] }, { "id": 7, "notice": "产品分类", "level": 2, "pid": 2, "path": "-2-7", "children": [] } ] }, { "id": 3, "notice": "权限管理", "level": 1, "pid": 0, "path": "-3", "children": [ { "id": 8, "notice": "用户管理", "level": 2, "pid": 3, "path": "-3-8", "children": [] }, { "id": 9, "notice": "角色管理", "level": 2, "pid": 3, "path": "-3-9", "children": [] }, { "id": 10, "notice": "菜单管理", "level": 2, "pid": 3, "path": "-3-10", "children": [] } ] } ]