The axes in Google Charts are a bit interesting, because what they display bears absolutely no resemblance to what data is there - you label the axes separately, even if they are numbers. To label multiple things - in this example a scale and some units, you simply specify the axis more than once.

In her example it creates a bar graph that puts the values for "chxr" and "chxl" on the axis. The Google Charts API can be used to generate other sorts of dynamic graphs too including the traditional pie, line or scatter charts. It can also create things like QR codes and formula images, all on the fly.

• CommandWidget - a terminal like widget for php-gtk
• Dial widget - a graphical widget to display an analog value
• ScrollingLabel - a funny label widget with scrolling capabilities
• Timer class : simplifying gtk::timeout_add

Keep an eye on the Code Snippets section of the PHP-GTK website for more helpful tips and tricks.