|  | yp_master(PHP 3>= 3.0.7, PHP 4 , PHP 5)yp_master -- Returns the machine name of the master NIS server for a map Descriptionstring yp_master ( string domain, string map)yp_master() returns the machine name of the master NIS server for a map. 
 See also yp_get_default_domain(). |  | |