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.
注: 此延伸不適用於 Windows 平台。
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 --enable-yp.
php.ini中沒有定義此延伸的組態指令。
以下的常數由此延伸定義,只在這個延伸被編譯成PHP或實行時期被動態載入時有效。