Mastering Doctrine Relations!

Composer

PHP Namespaces

Doctrine & the Database

BDD & Behat

Symfony Security: Beautiful Authentication, Powerful Authorization

Symfony 4 Fundamentals: Services, Config & Environments

Symfony 4 Level 1

Doctrine in Symfony

FOSUserBundle

Symfony: Doctrine & Database

Symfony Forms

Symfony Services & Container

Symfony Fundamentals

Symfony Beginner

OOP: Level 2