I just found out about autoloading and the PSR-0 / PSR-4 standards.
It keeps talking about "Vendors" and "package" names.
What exactly is a vendor?
And how should I for example organize my DB, User, and Product classes/models if I want to follow the standard?
Vendor its for example ZendFramework, its a code provider. Package its module for example for Zend framework - Authentication or another folders in library\Zend dirrectory