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Re: Pls help with output of csv file to browser? [message #179283 is a reply to message #179280]

Sun, 30 September 2012 17:01

Thomas 'PointedEars'
Messages: 701
Registered: October 2010

Karma:

Senior Member

BobMCT wrote:
^^^^^^
Who?

> I'm trying to add the generation of a csv file to send to the
> requestor's browser. So far I do have it working (sort of) by sending
> special headers indicating a text file and using fputcsv. The user
> receives the expected what to do prompt and if saved the dialog box
> asking where to save it appears and works.
>
> That's the good part.
>
> The bad part is that there is no resulting/completion page.

There is not supposed to be one. The moment the download starts, control is
turned over to the client which hopefully (and usually) provides the feature
to show the progress of the download.

> And, if I examine the saved csv file it actually contains the html for
> the subsequent page and the originating page still resides on the
> requestor's screen.

That is BAD. Borken As Designed.

> My guess would be that once the file is sent another set of header
> details must be sent to tell the browser that html is now coming.
> But, I cannot locate any examples of what to send in this case.
>
> I'm hoping that some of you readers have done this before and can
> share the technique/mechanism used to accomplish this successfully.
>
> Any ideas/examples/suggestions greatly appreciated.

It should be possible to send an HTTP multi-part response message as defined
in <http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.7.2>.
However, since that might not be supported, you should include a link for
downloading *only* the CSV in the HTML part anyway.

That is, if you absolutely must display an HTML document along with the CSV
download. The simpler way is not so send any HTTP response containing
*HTML* on success at all, for example:

<?php
/* process data */

if ($success)
{
header('Content-Type: text/csv; charset=UTF-8');
header('Content-Disposition: attachment; filename=my.csv');
fputcsv('php://stdout', …);
}
else
{
header('Content-Type: text/html; charset=UTF-8');
require_once 'error.php';
}
?>

You may also use, but should never rely on, client-side processing.

PointedEars
--
When all you know is jQuery, every problem looks $(olvable).

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[Message index]

		Pls help with output of csv file to browser? By: r.mariotti on Sun, 30 September 2012 15:19
		Re: Pls help with output of csv file to browser? By: Peter H. Coffin on Sun, 30 September 2012 15:41
		Re: Pls help with output of csv file to browser? By: Thomas 'PointedEars' on Sun, 30 September 2012 17:01
		Re: Pls help with output of csv file to browser? By: bill on Mon, 01 October 2012 12:16
		Re: Pls help with output of csv file to browser? By: The Natural Philosoph on Mon, 01 October 2012 22:28
		Re: Pls help with output of csv file to browser? By: Jerry Stuckle on Mon, 01 October 2012 18:50
		Re: Pls help with output of csv file to browser? By: Denis McMahon on Tue, 02 October 2012 03:41

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