php导出excel表格

http://hi.baidu.com/3800_hk/blog/item/56d0c93d5f7e52d69e3d62ff.html

<?php
$xlsname = date('YmdHis');
header("Content-type:application/vnd.ms-excel");
header("Content-Disposition:filename=$xlsname.xls"); //$xlsname　为随机文件名
?>

<table>
 <tr>
  <th>序号</th>

  <th>姓名</th>

  <th>性别</th>
 </tr>

  <tr>

     <td>1</td>

     <td>小王</td>

     <td>男</td>

  </tr>

  <tr>

     <td>1</td>

     <td>小丽</td>

     <td>女</td>

  </tr>

</table>