http://wiki.c2.com/?StoredProceduresAreEvil

http://www.peterkropff.de/site/php/oop_einfuehrung.htm

https://stackoverflow.blog/

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://jaredreich.com/pell

https://panagram.herokuapp.com/

https://andy-carter.com/blog/essential-visual-studio-code-extensions-for-php-developers

http://www.phpweekly.com/archive.html