PHP graphing and logging tool for Monit, to graph and analyse process and/or server performance.
Dependency graph visualization for composer.json (PHP + Composer)
GraPHP is the mathematical graph/network library written in PHP.
Charts - The missing laravel charting library written with PHP 7 with lots of front-ends available.
The Facebook SDK for PHP provides a native interface to the Graph API and Facebook Login. https://developers.facebook.com/docs/php