PHP实现根据时间戳获取周几的方法

function getTimeWeek($time, $i = 0) {
  $weekarray = array("一", "二", "三", "四", "五", "六", "日");
  $oneD = 24 * 60 * 60;
  return "周" . $weekarray[date("w", $time + $oneD * $i)];
}
$time=time();
echo getTimeWeek($tiem);