多维数组排序

public function arrSortField($arr, $filed, $type = 'desc')

{

    $sort_arr = [];

    foreach ($arr as $key => $value) {

        $sort_arr[] = $arr[$key][$filed];

}

    $type = ($type == 'desc') ? SORT_DESC : SORT_ASC;

    array_multisort($sort_arr, $type, $arr);

    return $arr;

}