php简单导出Excel

<?php
    header("Content-type:application/vnd.ms-excel");
    header("Content-Disposition:filename=�你的文件名.xls");
     
    <table>
        <tr><th>a</th><th>b</th></tr>
        <tr><td>1</td><td>2</td></tr>
    </table>
?>