No external libraries are needed to build this extension.
There is no installation needed to use these
functions; they are part of the PHP core.
This extension has no configuration directives defined in php.ini.
The constants below are defined by this extension, and
will only be available when the extension has either
been compiled into PHP or dynamically loaded at runtime.
The PATH_SEPARATOR was introduced with PHP 4.3.0-RC2.
For related functions such as dirname(),
is_dir(), mkdir(), and
rmdir(), see the