You can also look up for these other topics:
Framework
Coding Standards
Boilerplate
CMS
Tool
Security
Hacktoberfest
A collection of common algorithms implemented in PHP. The collection is based on "Cracking the Coding Interview" by Gayle Laakmann McDowell
doganoo:cyclone: :zap: :earth_africa: TextRank (automatic text summarization) for PHP7 and 8
PHP-Science