Introduction
Yaf_Response_Abstract is the base class of the
response object, which carries the headers and the content blocks to
be sent to the client. It is instantiated by
Yaf_Dispatcher; use
Yaf_Dispatcher::getResponse() to access it,
typically inside controllers, actions or plugins.
The concrete subclasses are Yaf_Response_Http
(used in web SAPIs, which actually sends HTTP headers) and
Yaf_Response_Cli (used on the command line).