RGraph is quick, attractive, easy to use and free for commercial use. Built on the widely supported canvas element desktop and mobile support is excellent and that allows you to create charts and dashboards that you can use on a wide range of devices. Owing to the fast rendering of the canvas tag, your charts can be up to 10x faster than Flash or SVG based libraries. This means you can create good looking and informative charts and dashboards.
Main purpose of charts is visualization of data. With php-RGraph you get
all the functions to retrieve and use data from mySql-databases, from local files, data from remote or local server,
from csv-files and even from Google's sheets.
With php-RGraph not only you get php-code but in addition detailed reference information is provided, lots of samples and how-to guidelines. Please select one of those: