Re: Generating "download" pages

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From	Arno Welzel <usenet@arnowelzel.de>
Newsgroups	comp.lang.php
Subject	Re: Generating "download" pages
Date	Sat, 19 Jul 2014 18:17:52 +0200
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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

Thread

Generating "download" pages Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2014-07-18 09:55 -0400
  Re: Generating "download" pages Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-07-18 17:39 +0200
    Re: Generating "download" pages Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2014-07-19 11:38 -0400
      Re: Generating "download" pages Jerry Stuckle <jstucklex@attglobal.net> - 2014-07-19 16:57 -0400
        Re: Generating "download" pages Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2014-07-19 17:06 -0400
    Re: Generating "download" pages Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2014-07-19 11:58 -0400
      Re: Generating "download" pages Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-07-19 19:06 +0200
    Re: Generating "download" pages "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-07-19 19:43 +0200
      Re: Generating "download" pages Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2014-07-19 14:23 -0400
        Re: Generating "download" pages "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-07-19 22:18 +0200
          Re: Generating "download" pages "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-07-19 22:38 +0200
            Re: Generating "download" pages Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2014-07-19 16:54 -0400
              Re: Generating "download" pages Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2014-07-19 17:00 -0400
                Resolved: Generating "download" pages Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2014-07-20 14:34 -0400
      Re: Generating "download" pages Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-07-19 20:50 +0200
        Re: Generating "download" pages "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-07-19 22:06 +0200
          Re: Generating "download" pages Jerry Stuckle <jstucklex@attglobal.net> - 2014-07-19 16:54 -0400
          Re: Generating "download" pages Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-07-20 00:48 +0200
      Re: Generating "download" pages Arno Welzel <usenet@arnowelzel.de> - 2014-07-20 01:04 +0200
  Re: Generating "download" pages Arno Welzel <usenet@arnowelzel.de> - 2014-07-19 18:17 +0200
    Re: Generating "download" pages Jerry Stuckle <jstucklex@attglobal.net> - 2014-07-19 16:55 -0400
  Re: Generating "download" pages Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2014-07-19 12:25 -0400
    Re: Generating "download" pages Tim Streater <timstreater@greenbee.net> - 2014-07-19 17:36 +0100
      Re: Generating "download" pages Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2014-07-19 13:53 -0400
        Re: Generating "download" pages Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2014-07-19 14:14 -0400
        Re: Generating "download" pages Curtis Dyer <dyer85@gmail.com> - 2014-07-23 00:38 +0000

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