当用户浏览到另一个页面时，自动开始下载 [英] Start download automatically when a user navigates to another page

问题描述

我想知道如何完成我在几个网站上看到的效果，我点击下载链接，它需要我到另一个页面，下载开始自动。

解决方案

重定向到发布以下标题的页面：

  header（Content-Disposition：attachment; filename = $ filename）; 
 header（Content-Length：$ length）; 
  

请参阅 $ filename 的限制的-encode-the-filename-of-content-disposition-header-in-content-disposition-header-in-http>这篇文章 p>

编辑以回应andr的回答，相当于重定向到x秒的php将是：

  header（Refresh：2; url = start_download.php）; 
  

（虽然你应该正式指定一个完整的URL，我想）其中start_download.php将包含两个

I was wondering how to accomplish an effect I've seen on several websites, where I click a download now link, it takes me to another page, and the download starts automatically. What is the best way to accomplish this?

解决方案

Redirect to a page which emits the following headers:

header("Content-Disposition: attachment; filename=$filename");
header("Content-Length: $length");

See this post about the restrictions on $filename.

edit in response to andr's answer, the php equivalent of redirect-after-x-seconds would be:

header("Refresh: 2; url=start_download.php");

(although you should officially specify a complete URL, I think) where start_download.php would contain the two lines above.

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