将用户重定向到在Wordpress中自动开始下载的新网页

I have a wordpress website.When a user clicks on a Button the download starts as the button is linked to a file.Now i need a way to redirect the user to a new page with some information and start the download automatically.

What is the best way to implement this?

One way of doing this.

First pass file by URL

<a href="download.php?url=file.txt">Download</a>

Delay download for few seconds and run the url in page download.php

Like:

$file = $_GET['url'];
echo 'Your download is srarting...';
sleep(5);
header('location: '.$file);