PHPGraphLib Graphing Library

PHPGraphLib Graphing Library

PHPGraphLib is a lightweight PHP-based graphing library that creates slick PHP graphs for incorporation into a website or application.

PHPGraphLib has powerful customization features, allowing you to generate the perfect bar, line, stacked bar, or pie graph for any application. Used with dynamic data, PHPGraphLib allows easy visual interpretation of sophisticated data sets. Simply feed PHPGraphLib an array of data points, and it will generate a .png chart of your data dynamically for browser display or saved to your filesystem.


The first version PHPGraphLib was written in 2007 by Elliott Brueggeman to deliver PHP generated graphs quickly and easily to PHP4 applications. It has grown in both features and maturity since its inception. PHPGraphLib now requires PHP5+. Originally available only for paid commercial use, PHPGraphLib was open-sourced in 2013 under the MIT License. Please visit for more information.


Documentation is available at I'll begin porting over documentation soon where it makes sense.


Within the Examples directory are examples of PHPGraphLib usage. Git clone this repo to a directory on your localhost or server to see these examples in action.

PHPGraphLib Graph Example

Graph Example

Two Dataset Example

Pie Chart Example

Stacked Graph Example