They are all (at least the ones I've looked at) created with OOP in mind, and you'll have to use classes/objects to work with them. However, you could write a lot of procedural code if you wanted, I suppose. (CodeIgniter, for example, supports the use of "helper" libraries which can consist entirely of non-oop functions.)
But, if you are at a stage where a MVC framework seems like a good solution for what you want to do, then it's likely time for you to buckle down and get comfortable with at least the basics and some of the intermediate aspects of OOP. 🙂