PHPProm is a library to measure some performance relevant metrics and expose them for Prometheus.
Its goal is to offer a simple, drop in solution to start measuring but without limiting customization.
As the measurements are regulary collected by Prometheus visiting a specific endpoint, they need to be stored. PHPProm offeres support for various backends like Redis or Memcached.
Check out its repository including the full documentation: https://github.com/philiplb/CRUDlex