There are three key actions to monitor code quality through a project's duration: 1. Regular code review to make sure every member is keeping up the applied practices. 2. Continuously scan source code (by using code analyzing tools) to find coding issues. 3. Encourage unit tests and monitor the test coverage.

Symfony 4: A new way to develop applications https://symfony.com/blog/symfony-4-a-new-way-to-develop-applications

The science of today is the technology of tomorrow.  - by Edward Teller