PHP实现无限级分类详解编程语言

  public function generateTree($items){ 
        $tree = array(); 
        foreach($items as $item){ 
            if(isset($items[$item['pid']])){ 
                $items[$item['pid']]['son'][] = &$items[$item['id']]; 
            }else{ 
                $tree[] = &$items[$item['id']]; 
            } 
        } 
        return $tree; 
    } 
 
    public function fenleitest(){ 
          $depart_list = [ 
            1 => ['id' => 1, 'grp_name' => '技术部', 'pid' => 0], 
            2 => ['id' => 2, 'grp_name' => '业务中台', 'pid' => 1], 
            3 => ['id' => 3, 'grp_name' => '业务前台', 'pid' => 1], 
            4 => ['id' => 4, 'grp_name' => '业务后台', 'pid' => 1], 
            5 => ['id' => 5, 'grp_name' => '客服组', 'pid' => 2], 
            6 => ['id' => 6, 'grp_name' => '管理系统组', 'pid' => 2], 
            7 => ['id' => 7, 'grp_name' => '支付组', 'pid' => 2], 
            8 => ['id' => 8, 'grp_name' => '用户组', 'pid' => 4], 
            9 => ['id' => 9, 'grp_name' => '司机组', 'pid' => 4], 
            10 => ['id' => 10, 'grp_name' => 'ios组', 'pid' => 3], 
            11 => ['id' => 11, 'grp_name' => 'android组', 'pid' => 3], 
        ]; 
        $depart_data = $this->generateTree($depart_list); 
        print_r($depart_data); 
        exit(); 
    }

Array 
( 
    [0] => Array 
        ( 
            [id] => 1 
            [grp_name] => 技术部 
            [pid] => 0 
            [son] => Array 
                ( 
                    [0] => Array 
                        ( 
                            [id] => 2 
                            [grp_name] => 业务中台 
                            [pid] => 1 
                            [son] => Array 
                                ( 
                                    [0] => Array 
                                        ( 
                                            [id] => 5 
                                            [grp_name] => 客服组 
                                            [pid] => 2 
                                        ) 
 
                                    [1] => Array 
                                        ( 
                                            [id] => 6 
                                            [grp_name] => 管理系统组 
                                            [pid] => 2 
                                        ) 
 
                                    [2] => Array 
                                        ( 
                                            [id] => 7 
                                            [grp_name] => 支付组 
                                            [pid] => 2 
                                        ) 
 
                                ) 
 
                        ) 
 
                    [1] => Array 
                        ( 
                            [id] => 3 
                            [grp_name] => 业务前台 
                            [pid] => 1 
                            [son] => Array 
                                ( 
                                    [0] => Array 
                                        ( 
                                            [id] => 10 
                                            [grp_name] => ios组 
                                            [pid] => 3 
                                        ) 
 
                                    [1] => Array 
                                        ( 
                                            [id] => 11 
                                            [grp_name] => android组 
                                            [pid] => 3 
                                        ) 
 
                                ) 
 
                        ) 
 
                    [2] => Array 
                        ( 
                            [id] => 4 
                            [grp_name] => 业务后台 
                            [pid] => 1 
                            [son] => Array 
                                ( 
                                    [0] => Array 
                                        ( 
                                            [id] => 8 
                                            [grp_name] => 用户组 
                                            [pid] => 4 
                                        ) 
 
                                    [1] => Array 
                                        ( 
                                            [id] => 9 
                                            [grp_name] => 司机组 
                                            [pid] => 4 
                                        ) 
 
                                ) 
 
                        ) 
 
                ) 
 
        ) 
 
)

public function keyequalid($lists)
{
$list = array();
foreach ($lists as $k => $v) {
$j=$v[‘id’];
$list[$j] = $v;
}
return $list;
}