将子值移动到parent - php multidimentional数组

Question

我遇到了如何将子值移动到父级中的问题。第一个和第二个循环是OK。但是在第三个循环中，请注意第三个循环中包含有人名的数组[0]。我有这个数组结构：

Array
(
 [TSK LEMPOR] => Array
    (
        [SAMSUL HADI] => Array
            (
                [0] => SAMSUL HADI
                [1] => 156
                [2] => 204
            )

        [HELMI ALMASAKTI] => Array
            (
                [0] => HELMI ALMASAKTI
                [1] => 156
                [2] => 204
            )

    )

)

它假设是这样的：

Array
(
 [TSK LEMPOR] => Array
    (
        [SAMSUL HADI] => Array
            (
                [0] => 156
                [1] => 204
            )

        [HELMI ALMASAKTI] => Array
            (
                [0] => 156
                [1] => 204
            )

    )

)

从此代码生成：

$attendance = array();

    foreach($projects as $project) {

        $workers = DB::table('tk_worker')
                   ->where('w_id', $project->tkat_wid)
                   ->select('w_id','w_name')
                   ->get();

        foreach($workers as $worker) {

            $attendance[$project->plpr_description][$worker->w_name]['a'] = $worker->w_name;

            $activities = DB::table('tk_attendance')
                          ->where('tkat_projectid',$project->plpr_projectid)
                          ->where('tkat_wid',$worker->w_id)
                          ->groupby('tkat_activityid')->get();

            foreach($activities as $activity) {

                $attendance[$project->plpr_description][$worker->w_name][] = $activity->tkat_activityid;

            }

        }
    }

所以请帮助我。