You can also look up for these other topics:
Framework
Coding Standards
Boilerplate
CMS
Tool
Security
Hacktoberfest
Security module for php7 and php8 - Killing bugclasses and virtual-patching the rest!
jvoisinEmbeddable and Secure PHP Authentication System with Login, Signup, User Profiles, Profile Editing, Account Verification via Email, Password Reset System, Remember-Me Feature and more.
msaad1999