The laravel charting package
Warning If you're wondering what happened to the v7 version please read this: #1 (comment)
Charts is a PHP (Laravel) library to handle all the charts in your application. It supports multiple charting libraries and they allow to be loaded over AJAX with a nice loading animation.
It uses a simple API to create all the JS logic for you. You just need to write a few PHP lines :)
The documentation for laravel-charts v6 can be found here, by pressing the image below.
A sample screenshot of a chartjs chart created using Charts.