PHP下载脚本在Mac上创建无法读取的ZIP文件

问题描述

为了参考，我已经阅读并尝试了这些和其他几个线程中的答案：

我的服务器上有一个zip文件。

1. 当我使用Filezilla将Zip文件从我的服务器移动到我的Mac时，我可以正常打开它。




2. 当我使用这个PHP代码将Zip文件下载到我的Linux机器时，它会正常打开。




3. 当我使用这个PHP代码将Zip文件下载到我的Mac时，使用Safari或Firefox，我收到一个错误，说解压失败或存档的结构损坏或者我得到一个.cpgz文件 - 我相信这意味着计算机是压缩文件，而不是解压缩它。

以下是我用于提供zip文件的PHP代码。

  $ zipname =myfile.zip; 
 $ zippath =/ path / to /。 $ zipname; 
 
 if（$ downloadzip = fopen（$ zippath，r））{
 $ fsize = filesize（$ zippath）; 
 
 header（Content-type：application / zip）; 
 header（Content-Disposition：attachment; filename = \$ zipname。\）; 
 header（Content-length：$ fsize）; 
 header（'Content-Transfer-Encoding：binary'）; 
 #header（Cache-control：private）; //使用这个直接打开文件
 
 echo fpassthru（$ downloadzip）; //提供zip文件
 
} 
 fclose（$ downloadzip）; 
  

我发现有些标题有效。我真的不知道或关心它为什么工作，我只是很高兴它的工作...我尝试了大量不同的东西.htaccess文件，php.ini / zlib设置。

这是答案

  $ zipName ='myfile.zip'; 
 $ zipPath ='mydirectory /'。 $ zipName; 
 
 
 if（file_exists（$ zipPath））{
 
 header（Pragma：public）; 
 header（Expires：0）; 
 header（Cache-Control：must-revalidate，post-check = 0，pre-check = 0）; 
 header（Cache-Control：public）; 
 header（Content-Description：File Transfer）; 
 header（Content-type：application / octet-stream）; 
 header（Content-Disposition：attachment; filename = \$ zipName。\）; 
 header（Content-Transfer-Encoding：binary）; 
 header（Content-Length：.filesize（$ zipPath））; 
 ob_end_flush（）; 
 @readfile（$ zipPath）; 
} 
  

解决方案

p>

  $ zipName ='myfile.zip'; 
 $ zipPath ='mydirectory /'。 $ zipName; 
 
 if（file_exists（$ zipPath））{
 
 header（Pragma：public）; 
 header（Expires：0）; 
 header（Cache-Control：must-revalidate，post-check = 0，pre-check = 0）; 
 header（Cache-Control：public）; 
 header（Content-Description：File Transfer）; 
 header（Content-type：application / octet-stream）; 
 header（Content-Disposition：attachment; filename = \$ zipName。\）; 
 header（Content-Transfer-Encoding：binary）; 
 header（Content-Length：.filesize（$ zipPath））; 
 ob_end_flush（）; 
 @readfile（$ zipPath）; 
} 
  

For reference, I have already read and tried the answers in these and several other threads:

Creating and serving zipped files with php

Opening downloaded zip file creates cpgz file?

I have a zip file on my server.

1. When I use Filezilla to move that Zip file from my server to my Mac, I can open it normally.

2. When I use this PHP code to download the Zip file to my Linux machine, it opens normally.

3. When I use this PHP code to download the Zip file to my Mac, using Safari or Firefox, I get an error saying "Decompression Failed" or "The structure of the archive is damaged" or I get a .cpgz file - which I believe means that the computer is zipping the file, not unzipping it.

Here is the PHP code I am using to deliver the zip file.

$zipname = "myfile.zip";
$zippath = "/path/to/" . $zipname;

      if ($downloadzip = fopen ($zippath, "r")) {
            $fsize = filesize($zippath);

            header("Content-type: application/zip");
            header("Content-Disposition: attachment; filename=\"".$zipname."\"");
            header("Content-length: $fsize");
            header('Content-Transfer-Encoding: binary');
            #header("Cache-control: private"); //use this to open files directly

            echo fpassthru($downloadzip); // deliver the zip file

        }
        fclose ($downloadzip);

I found some headers that work. I don't really know or care why it work, I am just happy it works... I tried a ton of different things, .htaccess files, php.ini / zlib settings.

Here's the answerhttp://perishablepress.com/http-headers-file-downloads/

$zipName = 'myfile.zip';
$zipPath = 'mydirectory/' . $zipName;


    if (file_exists($zipPath)) {

        header("Pragma: public");
        header("Expires: 0");
        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
        header("Cache-Control: public");
        header("Content-Description: File Transfer");
        header("Content-type: application/octet-stream");
        header("Content-Disposition: attachment; filename=\"".$zipName."\"");
        header("Content-Transfer-Encoding: binary");
        header("Content-Length: ".filesize($zipPath));
        ob_end_flush();
        @readfile($zipPath);
}

解决方案

Here is what works

$zipName = 'myfile.zip';
$zipPath = 'mydirectory/' . $zipName;

    if (file_exists($zipPath)) {

        header("Pragma: public");
        header("Expires: 0");
        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
        header("Cache-Control: public");
        header("Content-Description: File Transfer");
        header("Content-type: application/octet-stream");
        header("Content-Disposition: attachment; filename=\"".$zipName."\"");
        header("Content-Transfer-Encoding: binary");
        header("Content-Length: ".filesize($zipPath));
        ob_end_flush();
        @readfile($zipPath);
}

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