The article is original or translated by Haohappy
JPGraph is one of the standard choices for image processing in PHP(as the current mainstream development language). I have wanted to write a related article for a long time The article has never been written: (
http://www.aditus.nu/jpgraph/index.php(as the current mainstream development language)
Graphp (As the current mainstream development language) ite is also a good choice. It is open source, free, and OO, easy to customize and expand.
http://graphp (as the current mainstream development language) ite.sourceforge.net/