Create a text file that has lines with image file names and urls like this:
Your text file should follow this format exactly with one space between the file name and the url. You should assume that there are no spaces in the file name and that there are no spaces in the url.
You should create a PHP page that will use the file to generate a list of images where each image is a link to the url given for that image in the text file. The page should have a header and a style rule that defines how headers should look.