| Re: Generating "download" pages [message #186420 is a reply to message #186416] |
Sat, 19 July 2014 21:00   |
Lew Pitcher
Messages: 60
Registered: April 2013
Karma:
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Member |
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On Saturday 19 July 2014 16:54, in comp.lang.php, "Lew Pitcher"
<lew(dot)pitcher(at)digitalfreehold(dot)ca> wrote:
[snip]
> However, I have found a workaround that will suffice until I determine the
> proper way to get both updated page /and/ download:
>
> The request page (that which I want to update and redisplay) will contain
> within it an (almost) invisible <iframe> linking to a /second/ page. That
> second page will /only/ generate the file transfer headers and file.
>
> Together, the two pages will do what I had hoped to do in one page.
>
> Thanks to all for all the advice.
The main page (sendfile_2.php) looks like this....
<?php
session_start();
$showfile = false;
switch ($_SERVER['REQUEST_METHOD'])
{
case 'GET':
$count = 0;
break;
case 'POST':
$count = 1 + $_SESSION['Count'];
$showfile = (isset($_POST['Action']) && $_POST['Action'] == 'Send');
break;
}
?>
<html>
<head><title>Trial Sendfile</title></head>
<body>
<h1><?php print $count ?></h1>
<p>Did you get it?</p>
<form method="post">
<input type="submit" name="Action" value="Send"/>
</form>
<?php
if ($showfile)
{
?><iframe src="sendfile_2a.php" width="0" height="0" border="0"
frameborder="0" /><?php
}
?>
</body>
</html>
<?php
$_SESSION['Count'] = $count;
?>
The "download helper" page (referenced in the iframe and
called "sendfile_2a.php here) looks like this...
<?php
$file="./SixSpot_d.png";
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename=' . basename($file));
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . filesize ($file));
readfile($file);
exit(0);
?>
--
Lew Pitcher
"In Skills, We Trust"
PGP public key available upon request
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