Application Structure

Being a framework is not only providing tools to use, but recommendations on how it’s best to use them, as well.

This is the top directory of the skeleton project:


vendor - is the directory where all external application dependencies will reside, including the aint framework itself.

src - is the container for the actual code. All the backend programming happens inside.

www is the document root for the web server, it contains various public resources such as images and styles. It also serves the index.php, the entry point of your application. It looks like this:

    . PATH_SEPARATOR . realpath(dirname(__FILE__) . '/../src')
    . PATH_SEPARATOR . realpath(dirname(__FILE__) . '/../vendor/aintframework/aint_framework/library'));

require_once 'app/controller.php';

It does three things:

  1. Adds both application source and aint framework to include_path so their components can be included easily when needed.
  2. Includes app/controller.php file, the package containing the Front Controller function (the actual entry point of any HTTP request).
  3. Runs the app (through invoking the function playing the role of front controller).


When it comes to writing and organizing the actual code, the suggested pattern to follow for a web application is Model-View-Controller:


An important thing about this structure: it’s very specific and thorough about implementing the Model-View-Controller pattern. For each piece of code, whether it’s a config file, a function, a constant or a template: you will have to decide what it is: Model, Controller or View, the code for which is located in namespaces app\model, app\controller, app\view accordingly.

controller.php, model.php, view.php are simply files/namespaces to put some “upper-level”, general code for which you don’t feel like creating a subpackage.