Unknown feature?

Hey. I saw this image/banner that updated to the specific info in my account. What is this image below? How would I make one for my site?

http://fsprizes.com/images/signature/3_Money4Every1.gif (http://fsprizes.com/members/register.php?ref=Money4Every1)

Use a server side language such as PHP to generate the image.

Alright thanks. I googled it up, and this is what i made:

http://www.money4every1.net/customimage.php