Let's not just use Symfony, let's conquer it! In this series, you and I will journey to the center of Symfony by ripping open the source code, adding debug statements and seeing what really happens between the request and the response. It's as geeky-awesome as it sounds.
Besides dinosaurs, expect to do the following on our adventure:
HttpKernel::handle()method that's used in Symfony and Drupal 8
kernel.responseand others are dispatched