强制在CodeIgniter FTP类中下载文件 [英] Forcing file to download in CodeIgniter FTP class

问题描述

我在CodeIgniter中使用FTP类，它们具有从FTP下载文件的功能，但是，仅将文件下载到服务器本身。我正在尝试直接将其下载到用户。

I am using the FTP class in CodeIgniter, they have a function for downloading the file from the FTP, however, its only to the server itself. I am trying to get it to download straight to the user.

我知道我可以将其保存到服务器，然后强制下载然后删除。但是，如果文件很大且速度很慢，则会有些麻烦。

I know that i could just save it to the server and then force download and then delete. But its a bit of a hassle if the file is large and it would be slow.

所以我想知道这段代码是否存在仅使用force_download的问题CI功能？

So i am wondering from this code, if there is anyway just to use the force_download CI function?

示例;

$this->ftp->download('/public_html/myfile.html', '/local/path/to/myfile.html', 'ascii');

谢谢！

推荐答案

您只需将文件下载到PHP的标准输出流中，而不是像这样下载文件[stream]：

You simply download the file to PHP's standard output stream instead of a file [stream] like so:

<?php

header('Content-type: text/plain');
header('Content-Disposition: attachment; filename="test.txt"');
$this->ftp->download('/public_html/test.txt', 'php://output', 'ascii');

（注意：标头用于强制下载，否则浏览器仅打印内容）

(Note: headers are used to force the download, otherwise the browser would simply print the contents)

不客气！

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