Zend_Server_Reflection provides a standard mechanism for
performing function and class introspection for use with server classes. It is
based on PHP 5's Reflection API, augmenting it
with methods for retrieving parameter and return value types and descriptions, a
full list of function and method prototypes (i.e., all possible
valid calling combinations), and function or method descriptions.
Typically, this functionality will only be used by developers of server classes for the framework.