Introduction
These functions let you manipulate the output sent back to the
remote browser right down to the HTTP protocol level.
Requirements
No external libraries are needed to build this extension.
Installation
There is no installation needed to use these
functions; they are part of the PHP core.
Runtime Configuration
This extension has no configuration directives defined in php.ini.
Resource Types
This extension has no resource types defined.
Predefined Constants
This extension has no constants defined.