The DNS Configuration class is used for maintaining BIND 8 zone files and named.conf files. It is useful for adding and removing zones to your name server as well as the manipulation of resource records within your zones. It is extremely fast and is capable of handling thousands of zones.
The LDAP class for PHP is an easy way to interface your PHP program with an LDAP directory server. The interface is similar to what you would find in a filesystem. You can easily navigate through your directory server similar to the way you would navigate a filesystem with commands such as cd(), mkdir(), etc. A Web-based LDAP browser/modifier is supplied with the class library.
PHP::HTML is a set of PHP classes to abstract HTML and simplify complex Web application development. Reusable widgets can be based on the abstract classes which include a text-only class, text which marked-up with HTML, and a tag which contains multiple "children". PHP::HTML is currently in active development to make it cleaner, and to add support for CSS and support for "emulation" that will create HTML 3.2 documents for browser compatibility.
The XML writer class is a PHP class for composing and outputting generic XML documents. It can compose XML documents with custom DTDs and XSL stylesheets. The document data can use any character set encoding. If necessary the class can convert input data with character set ISO-8859-1 into UTF-8 documents, and vice-versa.