What is PhpDig?
PhpDig is a PHP MySQL based
Web Spider & Search Engine.



yp_master — Fetches the name of the master server for a map.


string yp_master(domain, map);
string domain: NIS domain name
string map: NIS map name (or nickname)


A string, FALSE on error.


yp_master() fetches the name of the master NIS server for a map within the specified domain. If the computer is not bound to an NIS domain, an empty string is returned. If an error is encountered, FALSE is returned.


PHP 3.0.7+, PHP 4+

See also

To find the NIS domain name for the current system:



Example 1443. Find the NIS master server name for map mail.aliases

$domain = yp_get_default_domain ();
$map    = 'mail.aliases';

$master = yp_master ($domain, $map)
   or die ("The master server name for map '$map' under domain '$domain' cannot be determined.");

echo "The master server name for map '$map' under domain '$domain' is '$master'.";

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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