I am working on a shopping cart in PHP and I seem to be getting this error \"Notice: Undefined index:\" in all sorts of places. The error refers to the similar bit of coding
This are just php notice messages,it seems php.ini configurations are not according vtiger standards,
you can disable this message by setting error reporting to E_ALL & ~E_NOTICE in php.ini
For example error_reporting(E_ALL&~E_NOTICE) and then restart apache to reflect changes.