ZIP 文件的 PHP 下载脚本会损坏文件

发布于 2024-11-14 13:35:49 字数 766 浏览 3 评论 0原文

这是我的代码：

header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename='.$filename.'.zip');
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . filesize($file));
ob_clean();
flush();
@readfile($file);
exit;

$file 等于我的服务器上的文件位置（该位置位于 public_html 目录之外）

下载文件后，我打开文件发现 zip 存档已损坏。我可以看到 zip 中所有文件的列表，但无法打开它们。当我通过 FTP 客户端下载文件时，存档没有损坏。我在脚本之前或之后没有任何空格。什么可能导致此文件损坏？

编辑：

我发现问题：zlib 压缩损坏了文件，因此我将 ini_set('zlib.output_compression', 'Off'); 添加到脚本的开头

原文

Here is my code:

header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename='.$filename.'.zip');
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . filesize($file));
ob_clean();
flush();
@readfile($file);
exit;

$file is equal to the file location on my server (the location is outside public_html directory)

When the file is downloaded, I open the file to find the zip archive corrupted. I can see a list of all the files in the zip but I can't open them. When I download the file through my FTP client, the archive is NOT corrupted. I do not have any whitespace before or after the script. What could be causing this file corruption?

Edit:

I have found the problem: zlib compression was corrupting the files so I added ini_set('zlib.output_compression', 'Off'); to the start of the script

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