``` // initData $end_time = strtotime(date("Y-m-d")); $begin_time = strtotime(date("Y-m-d", strtotime("-1 week +1 day", $end_time))); $keys = array_map(function ($time) { return date("Y-m-d", $time); }, range($begin_time, $end_time, 24 * 3600)); $initData = array_combine($keys, array_fill(0, count($keys), 0)); ```