文件列表页面：

layui-box layui-code-view" style="margin-top: 0px; margin-bottom: 10px; padding: 9.5px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); white-space: pre-wrap; overflow-wrap: break-word; box-sizing: border-box; position: relative; font-size: 13px; border: 1px solid rgb(204, 204, 204); background-color: rgb(245, 245, 245); color: rgb(51, 51, 51); font-family: Menlo, Monaco, Consolas, "Courier New", monospace; overflow: auto; line-height: 1.42857; word-break: break-all; border-radius: 4px;">
code
<ul>
    <li><a href="download.php?id=1">文件1</a></li>
    <li><a href="download.php?id=2">文件2</a></li>
    <li><a href="download.php?id=3">文件3</a></li>
</ul>

download.php页面：

code
$id = GET['id'];
 
//经过这个id去获得数据库下载表中的下载途径，然后把下载途径放入下面代码中翻开...
 
//翻开文件
$file = fopen('test.rar','r');
//界说下载头部信息
header("content-type:application/octet-stream");
header("accept-ranges:bytes");
//清算filesize()函数的缓存
clearstatcache();
header("accept-length:".filesize('test.rar'));
header("content-disposition:attachement;filename='test.rar'");
echo fread($file,filesize('test.rar'));
fclose($file);
exit;