PunyURL is a class that can be used to create short URLs using the Puny sapo.pt Web services API. It can send an HTTP request to the services.sapo.pt Web services API to create a short URL for another given URL. The class can also do the opposite, i.e. get the original URL associated to a previously created short URL.
SRR database simulator is a PHP class for storing information in "database tables". The PHP file which contains the class definition and the text files which contain the user data (tables, rows, etc.) can be in a unique directory, so backing up the database is easy. All the data is only stored as text.
Image.class is a PHP class that can be used to generate images with graphic primitives defined programmatically. It can create an empty image with a given size or load an existing image from a JPEG, PNG, or GIF image. The class can render graphic primitives in the image like drawing a text string with optional border, copying parts of the image to another position, drawing ellipses, rectangles, and lines, and scaling the image to a given size. The generated image can be saved also in JPEG, PNG, or GIF formats.