another 'headers already sent' issue
My client's site has just gone live, and they are getting a ‘Cannot modify header information’ error on their items detail page.
Usually, this is a case of finding a space between tags, but in this instance, the line in question appears to be within a php block.
the (edited) error is as follows...
Notice: Undefined index: rainbowcart_4_txtgroup_0 in /xxx/items_Detail.php on line 344
Notice: Undefined index: rainbowcart_4_txtgroup_0a in /xxx/items_Detail.php on line 344
Warning: Cannot modify header information - headers already sent by (output started at /hermes/web02/b2979/moo.rainbowsite/items_Detail.php:344) in /xxx/items_Detail.php on line 405
the page itself contains 4 add to cart forms, the one loaded depends upon the database entry.
in this instance, it is form 4 causing the problem
(I find this a particular headache, as my local server and the hosting server I use for testing do not show any errors)