The PEAR Installer classes provides an API for the administration and management of PEAR Packages.
Documentation is not fully up-to-date with PEAR version 1.4.0.
This class is for objects where you want to separate the code for some methods into separate classes. This is useful if you have a class with not-frequently-used methods that contain lots of code that you would like to avoid always parsing.
Class Trees for PEAR_Autoloader