php xmllib is a class that is capable of parsing XML documents using only PHP code, without the need for a special extension library like Expat or any other XML parsing library. The code is very compact and efficient compared to competing libraries. However, it's not as feature-rich.
php4flicks is a PHP/MySQL movie database. It features automatic retrieval of information from IMDB, genre support, user-defined movie categories, a completely CSS-based layout, a powerful search function, and the ability to export the movie list as a PDF. A multilingual version as well as a multi-user version offering db-based user administration, buddy lists, a communication panel, and much more are also available.
The phpCommunityCalendar (formerly known as Rosenet Community Calendar) is a full-featured, interactive community calendar. Since it runs on PHP and MySQL, it is much faster than existing "traditional" calendar applications. The visual layout has been left fairly generic, so modification for looks is very simple.
phpMyDataGrid is a PHP class to display and edit records of a MySQL database table. Editing can be done via AJAX. It can display the contents of the records in an HTML table. The class can be configured to determine which fields of the database table are displayed. The HTML table displays the names of the fields in the header with links to set by which field the listing is sorted. The listing may also show links with icons to edit, insert, or delete database records, which can be easily hidden.