customization - WordPress Plugin Development In MVC Architecture, How? in WordPress

You could definitely use an MVC philosophy in the development of a plugin, but you would be really silly to try to incorporate CI or Cake in addition to WP.

For instance, you could build out a plugin using the following pseudo structure (FYI, there are a ton of ways to build this, depending on your interpretation of MVC. This is just the quick example that pops into mind):

class Plugin(){ function __construct(){ // controller? run conditionals/determine query process model process view } function model(){ get query from database return variables } function view(){ echo html }
}

This might be a horrible example of a plugin structure, or even of MVC, but it is simply to illustrate that MVC architecture !== MVC frameworks and that MVC can be used in plugin design. Widget classes and other functionality throughout WP are similar, although without any explicit separation of concerns.