Warning: Cannot modify header information - Pls Help!!

**mightymidget** · 05-21-2005, 04:08 PM

Hi all,

After playing successfully offline on a local machine running a copy of MS2-Max-1.7 & XAMMP (all in one apache server) I decided to upload and install a clean copy to my Web-Host.

Everything was going great (thanks to the useful information in this forum & the great osCDox Guide). However when I now select 'My Account' or 'Checkout' functions from the 'Catalog' page I get the following error message:

Warning: Cannot modify header information - headers already sent by (output started at /home/linuxman/public_html/catalog/includes/languages/english.php:360) in /home/linuxman/public_html/catalog/includes/functions/general.php on line 29

I've not really modified much at all yet, only followed along with the installation guide and changed a few preferences from within Admin. Everything seemed to be going great, that was until I tried testing from a customers point of veiw.

I'd be really grateful if someone could help me out.

Many thanks in advance,

Andy

**Jonnyboy** · 05-21-2005, 04:14 PM

Hi Andy

Have you made any cahnge to the /catalog/includes/languages/english.php file?
If you have can you post it here so we can check it out for you

Thanks
John

**mightymidget** · 05-21-2005, 04:38 PM

Hi John,

The only changes I've made to that file are to the Page Title:

// page title
define('TITLE', 'Linux-man Distros');

I've also changed this in the Catalog/includes/languages/english/index.php: define('HEADING_TITLE', 'Linux for Everyone!!');
so the Catalog page no longer displays 'Welcome to AAbox.com'

Other changes I've done have been through the Admin page, such as set the default curr to GBP and removed USD, Removed German, Spannish languages, and changed the permission on various files as directed by the installtion guide. Also through Admin I've changed the default template to osC.

That's it really. Unfortunately I don't know if the Account & Checkout function have ever worked as this is the first time I checked them.

Anything you can suggest would be appreciated. I really hope I can sort this out as the installation went like a dream.

**Jonnyboy** · 05-21-2005, 05:03 PM

I found this when i did a google search... dont know if it will help but its worth a try...

search
"Warning: Cannot modify header information - headers already sent by" osc max

--------------------------------------------------------------------------
http://sourceforge.net/mailarchive/f...ewmonth=200505
------------------------------------------------------------------------------------------

Warning: Cannot add header information - headers already sent by (output
started at /directory/to/starting_file.php:XXX) in
/directory/to/calling_file.php on line XX

The problem occurs when content has been sent to the client and PHP has been
instructed to set header parameters via the header() function, or when
starting the session via the session_start() function.

Solution

The problem can be solved by walking through the code logic flow in the files
involved, which are mentioned in the warning message, to make sure no headers
are being set after content has been sent to the client.

A common cause to the problem is spaces ("whitespace") existing before the
first <?php tag and/or after the last ?> tag with the files involved. By
removing all spaces so that <?php is at the very start of the file and that ?>
is at the very end of the file, no content would have been sent to the client
and headers can be set safely.

Open the file in a text editor -> place your mouse cursor after the very last
?> tag at the very end of the file and press the "delete" key on your computer
keyboard. Make sure that whitespace does not exist before the opening <?php
tag at the very beginning of the file - delete whitespace if present. Save and
upload the file to your installation.

**mightymidget** · 05-21-2005, 05:33 PM

Thanks for finding that. Unfortunately it didn't fixed my problem. Still getting the same error. I haven't really changed that much from the default install so I'm totally stumpt.

**michael_s** · 05-21-2005, 06:10 PM

/home/linuxman/public_html/catalog/includes/languages/english.php:360

That tells you exactly what the problem is. On line 360, you have white space after the closing php tag. Remove it and the error goes away. This is a php newbie error. Happens to everyone at least once...

**mightymidget** · 05-21-2005, 06:20 PM

I checked all the files and couldn't find any spaces, went back and double checked and found loads!!!

It's all working now which is a real relief. So thanks everyone.

But one question, how did the spaces get there?? I've edited a number of these files, but so far all my edits haven't been anywhere near the closing php tags!!

Is it something to do with fact I'm editing these files directly on the server using my webhosts cPanelX control panel, or something else.

Once again many thanks for taking the time to sort this out for me

Andy