This pie chart is very simple to use. All you need is PHP server with GD2 installed.

To show the pie chart, point your browser to the location of the chart.php file and add the following to the url:
?label=demo1*demo2*demo3&data=2*8*1

So, for instance:
http://www.your-site.com/chart.php?label=first*second*third*fourth*fifth&data=6*3*9*3*10

For support, please visit http://www.atokar.net/

Demonstration at: http://www.atokar.net/index.php?action=projects;project=1