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.
None besides functions from standard Unix libraries which are always available (either libc or libnsl, configure will detect which one to use).
To get these functions to work, you have to configure PHP with
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.
access violation (this has only been added recently and is only available from PECL CVS for now)
The function arguments are bad
YP database is bad
cannot bind to server in this domain
no such key in map
no such map in server's domain
Local domain name not set
No more records in map database
Can't communicate with portmapper
resource allocation failure
RPC failure - domain has been unbound
Can't communicate with ypbind
internal yp server or client error
Can't communicate with ypserv
YP version mismatch