You can also look up for these other topics:
Framework
Coding Standards
Boilerplate
CMS
Tool
Security
Hacktoberfest
A small, simple PHP MVC framework skeleton that encapsulates a lot of features surrounded with powerful security layers.
OmarElgabryA simple PHP MVC REST API framework with PHP 7.2 With routes and some tools to develop your API.
afgprogrammerLaminas's event-driven MVC layer, including MVC Applications, Controllers, and Plugins
laminas