PHP显示年月日，星期代码

<?php
$date = date("Y年m月d日",time());
switch(date("w",time())){
 case 0:
  $today = "星期日";
  break;
 case 1:
  $today = "星期一";
  break;
 case 2:
  $today = "星期二";
  break;
 case 3:
  $today = "星期三";
  break;
 case 4:
  $today = "星期四";
  break;
 case 5:
  $today = "星期五";
  break;
 case 6:
  $today = "星期六";
  break;
}
echo $date.",".$today;
?>