(高分)为何这段代码不能实现文件下载

WBOY
Release: 2016-06-13 12:29:54
Original
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(高分)为什么这段代码不能实现文件下载
高分悬赏:
为什么我这段代码不能实现文件下载,在LINUX和WINDOWS下我都试过了。在WINDOWS下运行到OB_start();程序就没运行下去了。
$root="D:/wamp/www/panjinli/downloadsouce";
if(is_dir($root))
{
   $openHandle=opendir($root);
   while(false!==($file=readdir($openHandle)))
   {
       if(!is_dir($root.$file))
   {
         echo "".$root.$file."
";
       }
   }
   closedir($openHandle);
}else
{
echo "文件夹不存在";
}
 
$do=(isset($_REQUEST['do'])) ? addslashes($_REQUEST['do']) : '';
if($do=='down')
{
    $file=(isset($_REQUEST['file'])) ? addslashes($_REQUEST['file']) : '';
    $path=(isset($_REQUEST['path'])) ? addslashes($_REQUEST['path']) : '';

    OB_start();
    function DownLoad($info,$file) 
{
        OB_Clean();
        if(!file_exists($info))
{
            exit('Error:'.__LINE__.','.basename(__FILE__).'!');
        }

        $info=file_get_contents($info);
 
        header('Content-Transfer-Encoding: binary');
        header('Content-Type: application/force-download; name="'.$file.'"');
        header('Content-Disposition: attachment; filename='.$file.'');
        header('Cache-control: private');
        header('Pragma: no-cache');
        header('Expires: 0');
        echo $info;
        die();
    }
    DownLoad($path.$file,$file);
}
?>
header('Content-Disposition: attachment; filename='.urlencode($file).'');
DownLoad($path.$file,$file);

换成
DownLoad($path.'/'.$file,$file);

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