Warning: Cannot modify header information - headers already sent by (using Worldpay)

**dfltech** · 1 Nov 2007, 05:21 PM

Hi,

Home :: WorldPay

Warning: Cannot modify header information - headers already sent by (output started at /home/golfgym/public_html/store/includes/templates/template_default/common/html_header.php:22) in /home/golfgym/public_html/store/includes/functions/functions_general.php on line 44

Above is the warning message I am getting, does anyone have any idea on this ??

Please help, this is creating problems for us...

the above is the error when the payment is processed:
https://select.worldpay.com/aequitas/card

is this to to do something with the redirect back to the website ?

html_header.php line 22 has the below code:

<html xmlns="http://www.w3.org/1999/xhtml" <?php echo HTML_PARAMS; ?>>

functions_general.php line 44 contains:
header('Location: ' . $url);

Any help is appreciated..

Thank you

**dfltech** · 1 Nov 2007, 08:22 PM

Hi,

This is really a urgent issue, please help...

Moderators, members, administartors help.................

**DrByte** · 1 Nov 2007, 09:36 PM

Originally Posted by dfltech

Warning: Cannot modify header information - headers already sent by (output started at /home/golfgym/public_html/store/includes/templates/template_default/common/html_header.php:22)

Typing "headers already sent" into the search field in the FAQ area brings up a couple articles. The first one is this:
https://www.zen-cart.com/tutorials/index.php?article=87

**dfltech** · 2 Nov 2007, 12:18 PM

Thanks for that, but i have tired to get a fresh file by downloading the zen cart and then uploading that file, but still the same error....

any other thoughts on this ????

Thank you

**dfltech** · 3 Nov 2007, 03:23 PM

I am sorry to say, but the error seems to be beyond the support of the zen cart vendor itself.....

**Website Rob** · 3 Nov 2007, 03:30 PM

If you're not happy with the script you can always ask for your money back.

Otherwise, were edits done to the files in question? That specific error msg. is common when syntax has been incorrectly changed. This can include spaces after the ?> at the page bottom.

**DrByte** · 3 Nov 2007, 05:53 PM

It would seem that you have something running in a template file which is trying to do a redirect *after* the page has started drawing ... hence the "headers already sent" message appearing when the redirect header-change function gets called.

You made mention of "Worldpay". What happens if you turn off the worldpay module and enable the Check/MoneyOrder module instead? Does the error go away? If so, then logic would suggest that the problem is somewhere in the Worldpay module you're using.

**linivan** · 4 Nov 2007, 01:47 AM

Originally Posted by DrByte

It would seem that you have something running in a template file which is trying to do a redirect *after* the page has started drawing ... hence the "headers already sent" message appearing when the redirect header-change function gets called.

You made mention of "Worldpay". What happens if you turn off the worldpay module and enable the Check/MoneyOrder module instead? Does the error go away? If so, then logic would suggest that the problem is somewhere in the Worldpay module you're using.

Hi all

I have the same problem.
I believe nothing to do with the additional space problem.
If I don't select worldpay and use paypal or COD, then everythinng works fine.

**beatnik** · 5 Nov 2007, 01:29 PM

Originally Posted by Website Rob

If you're not happy with the script you can always ask for your money back.

Otherwise, were edits done to the files in question? That specific error msg. is common when syntax has been incorrectly changed. This can include spaces after the ?> at the page bottom.

That worked for me... Thanks

**digimac** · 28 May 2008, 06:39 PM

Hi Guys,

Hope you can help.
I have the same issue as described in one of the above posts:
Warning: Cannot modify header information - headers already sent by (output started at /home/*****/public_html/includes/templates/ZC03C00094/common/html_header.php:22) in /home/*****/public_html/includes/functions/functions_general.php on line 44

I have tried everything suggested in this post and others and am still getting this error.

The error is appearing when Worldpay calls back to the Zen Cart site so the order doesn't complete as the callback is incomplete.

I have tried reinstalling worldpay, changing templates, all the suggestions that have been made in this thread so far and still no luck.

The site is Zen Cart version 1.3.7 and the server is running PHP 5.2.5
Any help with this issue would be much appreaciated.

Cheers
Brian

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