One of the first things I ever programmed in PHP, of my own creation was a binomial distribution graph png generator. Pretty sure I had to scale the rectangles

One of the first things I ever programmed in PHP, of my own creation was a binomial distribution graph png generator. Pretty sure I had to scale the rectangles I was drawing for the graph according to the dimensions of the png I was making. It was of course very trivial, and nothing like the amazing things D3 can do. But it was a neat experience, making something of my own for very first time that produced an image on the computer.