在通过HTTP下载文件时是否应使用content-transfer-encoding标头？ [英] Should content-transfer-encoding headers be use when downloading files via HTTP?

问题描述

我最近遇到了如何使用PHP强制下载文件其中描述了设置 Content-Transfer-Encoding 。当用于通过HTTP下载文件时，此标头在与此应用程序一起使用时是否适用（它似乎与电子邮件相关）？如果是这样，应该为MS Word和Excel文件，ZIP文件，PDF和文本设置什么？

I recently came across How to force file download with PHP which describes setting Content-Transfer-Encoding. Is this header applicable when used with this application when used to download a file via HTTP (it appears to be email related)? If so, what should it be set as for MS Word and Excel files, ZIP files, PDFs, and Text?

header("Content-Transfer-Encoding: Binary"); 

推荐答案

它被虔诚地包含在carg-cult copy-粘贴程序员，因为它是在PHP.net上的 readfile（）联机帮助页的评论中提到。

It has been religiously included by carg-cult copy-paste programmers since it was mentioned in a comment to the readfile() manpage on PHP.net.

确实与HTTP无关，您可以安全地将其删除。

It indeed has little to do with HTTP and you can safely remove it.

这篇关于在通过HTTP下载文件时是否应使用content-transfer-encoding标头？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！