头文件强制下载tar档案 [英] headers to force the download of a tar archive

问题描述

我在服务器上有一个tar档案，必须通过php下载。这是我用过的代码：

i have a tar archive on the server that must be downloadable through php. This is the code that i've used:

$content=file_get_contents($tar);
header("Content-Type: application/force-download");
header("Content-Disposition: attachment; filename=$tar");
header("Content-Length: ".strlen($content));    
unlink($name);
die($content);

文件已下载但已损坏，无法打开。我认为头文件有问题，因为服务器上的文件可以毫无问题地打开。你知道我该如何解决这个问题吗？

The file is downloaded but it's broken and it can't be open. I think that there's something wrong with headers because the file on the server can be open without problems. Do you know how can i solve this problem?

更新
我尝试打印一个iframe，像这样：

UPDATE I've tried to print an iframe like this:

<iframe src="<?php echo $tar?>"></iframe>

下载工作，所以我确定头文件中缺少某些内容。

And the download works, so i'm sure that there's something missing in headers.

推荐答案

当我必须这样做时，我已经使用了这段代码：

I have used this code when I have had to do it:

function _Download($f_location, $f_name){
 header('Content-Description: File Transfer');
 header('Content-Type: application/octet-stream');
 header('Content-Length: ' . filesize($f_location));
 header('Content-Disposition: attachment; filename=' . basename($f_name));
 readfile($f_location);
 }

_Download("../directory/to/tar/raj.tar", "raj.tar");
//or
_Download("/var/www/vhost/domain.com/httpdocs/directory/to/tar/raj.tar", "raj.tar");

试试看。

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