Phulcrum brings the concept of Model 2 web development to PHP and includes a library of PHP code including: a logging framework; a fast, thin database abstraction layer; an object persistence framework; an XML scripting engine; and a flexible XML parser.
This is a small library to allow conversion of the vCalendar (iCalendar/iCal) file format to XML, and to provide some level of interpretation of the calendar for use in a larger project. Consider it a parsing engine.