I would like to create a simple notification icon that would display a number in the users system tray.
The application only needs to allow the input of an API key that it would use to fetch information from the server. So, for example:
http://www.example.com/api.php?key=dfg45tgyy67h
The PHP file will return two values, a number, and a URL. The number should appear in the system tray, and clicking on it should take you to the URL. The application should update the information at a specified interval, which can be hard-coded into the application.
I really have no idea how to do this, but can pick up things like this pretty quickly. So I would like to know some ways to accomplish this, or what the easiest method to use would be.
EDIT When I said PHP what I meant was that on the server it would be a PHP file serving up the information to the application. I didn't plan on creating the client application in PHP.
Use a cross-platform language and widget toolkit with both browser launching and system tray capabilities.