PHP and Scalable Vector Graphics

If you are looking for a great way to dynamically generate complex graphics with PHP, look not further than scalable vector graphics (SVG). For those not familiar with SVG images they are essentially a XML structured image file (currently with the help of an SVG viewing plugin from Adobe). Here is a little article regarding PHP and SVG from Zend.
http://www.zend.com/zend/trick/tricks12apr.php