Luta Spam is a class to encode email addresses to make them more difficult to grab by email harvesting robots. It can make an address difficult for robots to recognize by replacing "@" and "." with respective images. The class can also do the opposite, i.e. replace the images and decode the email address by restoring the @ and . characters. It also checks DNS records for the Internet host name of a given address.
MIDI Class is a PHP Class for reading, writing, analyzing, modifying, creating, downloading, and playing (embedding) standard MIDI files (type 0 or 1). MIDI songs are internally represented as lists of tracks, where each track is a list of messages, and each message is a string. The message string format is the same as the one used by the command-line tools MF2T/T2MF, created by Piet van Oostrum. The class provides methods to generate and manipulate MIDI data and to import and export binary MIDI files (SMF, *.mid), text in the MF2T/T2MF format, and MIDI XML.