Searching for free PHP chart library with PNG, SVG or PDF output (under LGPL or similar)

Question

Is there a free (LGPL or similar) PHP library that draws line, bar, ... and pie charts to PNG / SVG graphics or PDF files?

I need that charts for a PDF output module. As it will be used in a commercial product, it needs to be under LGPL or any similar license. Already searched a lot, but found nothing that is really usable, so far.

Answer 1

See this: old thread, or check these 6 libraries.

EzComponents may be your only choice if you want SVG for free. Most chart libraries will output PNG, e.g. Google Charts API.