NIS (formerly called Yellow Pages) allows network management of
important administrative files (e.g. the password file). For more
information refer to the NIS manpage and
The Linux NIS(YP)/NYS/NIS+ HOWTO. There is also a book called Managing NFS and NIS by Hal Stern.
Note:
This extension has been moved to the PECL repository and is no longer bundled with
PHP as of PHP 5.1.0.
Note: This extension is not
available on Windows platforms.
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.