registered ticket bar code difference php

Is there a difference between the bar code of a registered ticket for the ticket that is not registered? Today, we know that no more ticket is generated that is not registered, I would like to use the template that has in boletophp.com.br, but, as is known, only generate ticket without registration. If there is a difference in the bar code, would it be necessary to know what the layout of this barcode is for each bank?