| Re: Generating "download" pages [message #186404 is a reply to message #186399] |
Sat, 19 July 2014 16:17   |
Arno Welzel
Messages: 317
Registered: October 2011
Karma:
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Senior Member |
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Lew Pitcher, 2014-07-18 15:55:
> I'm not certain that what I want can be done, let alone done with PHP, but
> please let me describe the function I'm looking for:
>
>
> On response to a trigger on one web page, I want to be able to generate and
> display a new web page, /and/ at the same time, send an associated file as
> a download.
>
> The user selects (in this case) "Export recipes" (I'm developing a PHP/MySQL
> recipe management application), which causes
> 1) the page to change to a "Download in progress" page, and
> 2) a file (in this case, an XML file containing the recipes) to be sent to
> the client.
>
> Is this doable? How do I do this with PHP?
I would solve it this way:
A PHP script displays the page *and* also generates a
META-Refresh-Header to redirect the browser to another script (or the
same whith an additional parameter) which will then generate the content
to be downloaded.
As a rough example (untested and not complete - just to get the idea):
<?php
//
// getfile.php
//
if(!isset($_GET['download'))
{
?>
<!DOCTYPE html>
<html>
<head>
<meta
http-equiv="refresh"
content="5; url=http://example.com/getfile.php?download=1" />
<title>Download</title>
</head>
<body>
<p>If your download does not start automatically,
<a href="http://example.com/getfile.php?download=1">click here</a>.</p>
</body>
</html>
<?
}
else
{
header("Content-Disposition: attachment; filename=download.xml");
// Add XML output to be downloaded here...
}
?>
--
Arno Welzel
http://arnowelzel.de
http://de-rec-fahrrad.de
http://fahrradzukunft.de
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