http://wiki.c2.com/?StoredProceduresAreEvil
http://www.peterkropff.de/site/php/oop_einfuehrung.htm
http://wiki.c2.com/?PatternIndex
https://www.doctrine-project.org/projects/doctrine-orm/en/2.6/reference/association-mapping.html
https://symfony.com/doc/current/doctrine/reverse_engineering.html
https://panagram.herokuapp.com/
https://andy-carter.com/blog/essential-visual-studio-code-extensions-for-php-developers