PHP5 Charting Library Built On Google Chart API
Google Chart PHP Library is an open source, object oriented and lightweight charting library built on Google Chart API. This PHP Charting Library aims to simplify the request generation by offering a high-level object-oriented PHP interface.
Google Chart PHP Library doesn’t generate any image, it generates an HTTP request (GET or POST) to call Google Chart API.
Its a fast chart generation library and does not require any additional PHP modules.