Webbased Chart Component Prefrably Free for PHP!

I am looking for a web based chart component, that would allow me to render Rank charts when less value is go开发者_开发知识库od. I am aware of fusion charts but does it allow Rank Charting?.. ummm thats a question.. :)

The two i have used are,

http://www.maani.us/xml_charts/

And

http://code.google.com/apis/charttools/index.html

I have found then both to be quite reliable. I use the google one for an application monitoring tool where lower numbers are better, so this should fit your requirements.

There's an awesome web based charting application used by karma crm, cannot recall r The name exactly now. You can feed data in XML and json format to render the charts.