PHPDoc is an adoption of Javadoc to the PHP world. PHPDoc is written in PHP.
It offers you a way to generate an API documentation of
objectoriented and procedural code with certain markup in your source.
- PEAR: PEAR is a framework and distribution
system for reusable PHP components.
POBS stands for PHP Obfuscator/Obscurer. It is a free and open PHP program that
makes PHP sourcecode almost impossible to read and edit for normal humans.