Graphs in PHP
 

I found this graph while reading an article. I found that it looks very professional. The way I have used graphs so far have been with Flash Graphs providing data in XML format, but I'd like to get away from flash and just provide PNG or JPG images.

In all of the graphs I found with PHP and GD, they simply just haven't looked professional. So I was wondering if anyone here believes there's a way to create this kind of graph in PHP using whatever engine in the background???

Looking at the gradients and the smooth lines, I assume this image has been created with flash or java in some way with input from XML or PHP...

It looks like something you can create using Google Graphs. These I have linked to are somewhat basic looking, but I know for sure that you can make them much more graphically orientated.