Php – Charting libraries in PHP output to SVG or Canvas

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I'm looking for a charting library written in PHP that outputs to SVG (or Canvas), possibly for integration into an ExtJS project. I like the look of http://pchart.sourceforge.net/index.php but it does bitmap output and is GPL licensed, which will probably be a show-stopper since the project is an internal commercial project.

Any suggestions?

Best Answer

It might not be quite what you're looking for, but there's a PHP Object wrapper for Google Charts:

http://code.google.com/p/gchartphp/

Do you need PHP to generate the actual image via the GD library?