Anatomy of a bundle

When you install Symfony (via the default installer), it comes with a very basic controller and template. That is why we can see the default Welcome! screen by visiting the following URL:

http://localhost:8000

The general folder structure for a Symfony project is as follows:

└── mava
    ├── app
    ├── bin
    ├── src
    ├── tests
    ├── var
    ├── vendor
    └── web

The folders that we are interested at the moment are src/ and app/. They contain the code and template for the Welcome! screen. In the src/ folder, we have a bundle called AppBundle with the following basic structure:

src/
└── AppBundle
    ├── AppBundle.php
    └── Controller
        └── DefaultController.php

The default controller is where the so-called handle() method passes the request and expects a response. Let's have a look in this controller:

// mava/src/AppBundle/Controller/DefaultController.php
class DefaultController extends Controller
{
  /**
   * @Route("/", name="homepage")
   */
  public function...