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In my previous post about creating simple graphs using Google Charts API, I mentioned about a PHP class, called Google Graph, which Ryon Sherman wrote that encapsulates this API, making it easier to code in PHP.
I incorporated this class in my CakePHP project, and found that there were a couple of problems with it.
Thinking back a fews years ago, I was involved in building some reporting modules with graphs and charts to show our customer utilisation of our data center. After trying a number of different open source graphing packages for PHP, I finally found JpGraph, which I daresay is probably the best graphing package available for PHP. (In my experience anyway.)
However, JpGraph requires other dependencies like GD libs - the kind of thing which we may not always have control over if we host with web hosting providers. Thankfully, there’s now a simple and easy way of building simple good looking graphs with just an <img> tag.