Method #1:

Method #2:

Method #3:

We've had a random number generation script on the site for a while, but I continue to get questions about how to show a random image so here you go.

As I started writing this, I realized there are a number of ways to tackle the problem and the one you choose probably has a lot to do with your particular situation and requirements. So I decided that instead of just displaying a random image, I'd do it three different ways and display three of them in an effort to illustrate some different approaches. They all rely upon the random number generator to pick an image, but how that number is translated to a file name indicating which image to show varies quite a bit from one method to the next.

Oh and if you're wondering where I got the images, they're from the website of the most recent addition to my development toolbox. They probably won't make you a better programmer, but they might just help you meet that deadline your boss just sprung on you!