First off, this isn't really a programming question but more of a programming concept question. Basically, I've built a bespoke PHP framework to speed up deployment on my end and I want some kind of plugin system in place that will allow me to add specific features to the base of the framework (like the SQL class or maybe a Twitter package) that will allow me to throw them into a folder and not have to actually edit the base for every new project.
Any ideas of the best way of going about this?