Tipos Resource
YP/NIS Funções
YP/NIS
PHP Manual

# Constantes pré-definidas

As contantes abaixo são definidas por esta extensão e somente estarão disponíveis quando a extensão foi compilada com o PHP ou carregada dinamicamente durante a execução.

`YPERR_ACCESS` ( integer )
  access violation (this has only been added recently and is only available from PECL SVN for now)
`YPERR_BADARGS` ( integer )
  The function arguments are bad
`YPERR_BADDB` ( integer )
  YP database is bad
`YPERR_BUSY` ( integer )
  Database busy
`YPERR_DOMAIN` ( integer )
  cannot bind to server in this domain
`YPERR_KEY` ( integer )
  no such key in map
`YPERR_MAP` ( integer )
  no such map in server's domain
`YPERR_NODOM` ( integer )
  Local domain name not set
`YPERR_NOMORE` ( integer )
  No more records in map database
`YPERR_PMAP` ( integer )
  Can't communicate with portmapper
`YPERR_RESRC` ( integer )
  resource allocation failure
`YPERR_RPC` ( integer )
  RPC failure - domain has been unbound
`YPERR_YPBIND` ( integer )
  Can't communicate with ypbind
`YPERR_YPERR` ( integer )
  internal yp server or client error
`YPERR_YPSERV` ( integer )
  Can't communicate with ypserv
`YPERR_VERS` ( integer )
  YP version mismatch

Tipos Resource
YP/NIS Funções
YP/NIS
PHP Manual