You can also look up for these other topics:
Framework
Coding Standards
Boilerplate
CMS
Tool
Security
Hacktoberfest
Penetration Testing and Hacking CTF's Swiss Army Knife with: Reverse Shell Handling - Encoding/Decoding - Encryption/Decryption - Cracking Hashes / Hashing
helich0pperPHP shells that work on Linux OS, macOS, and Windows OS.
ivan-sincek