[wp-hackers] exporting a file in wp admin

[Dion Hulse (dd32)]

Chances are, your code is running way too late, Probably after the header  
and menu have been outputted (Its about this time that the plugin page  
gets included)

Use admin-post.php and direct the download through that, no WP UI is  
outputted when called through there, and it'll be limited to the currently  
logged in user.

(Please do put a nonce on it though)

Dion


On Sun, 23 May 2010 22:30:30 +1000, Steve Taylor <steve at sltaylor.co.uk>  
wrote:

> I'm trying to send a spreadsheet created with PHP on a WP admin page
> to the browser for download. The relevant code I've got is:
>
> header( "Content-Type: application/vnd.ms-excel" );
> header( 'Expires: ' . gmdate('D, d M Y H:i:s') . ' GMT' );
> header( "Content-disposition: attachment; filename=download-logs.xls" );
> header( 'Pragma: no-cache' );
> echo $spreadsheet;
> exit;
>
> I gather there's a few different options for the header settings, but
> I think the problem I've got is more basic than that. What I'm seeing
> is just the normal WP admin page, with the spreadsheet data dumped as
> a string. These are the response headers (via Web Developer in
> Firefox):
>
> Date: Sun, 23 May 2010 12:28:56 GMT
> Server: Apache/2.2.3 (CentOS)
> X-Powered-By: PHP/5.1.6
> Expires: Wed, 11 Jan 1984 05:00:00 GMT
> Last-Modified: Sun, 23 May 2010 12:28:57 GMT
> Cache-Control: no-cache, must-revalidate, max-age=0
> Pragma: no-cache
> Keep-Alive: timeout=15, max=500
> Connection: Keep-Alive
> Transfer-Encoding: chunked
> Content-Type: text/html; charset=UTF-8
> 200 OK
>
> I suspect I'm missing the trick of clearing the header settings
> already specified by WP itself. I tried ob_clean() at the start, but
> then I just see a blank WP admin page.
>
> Any help appreciated!
>
> Steve Taylor
> _______________________________________________
> wp-hackers mailing list
> wp-hackers at lists.automattic.com
> http://lists.automattic.com/mailman/listinfo/wp-hackers
>


-- 
Dion Hulse / dd32
Contact:
  e: contact at dd32.id.au
  Web: http://dd32.id.au/