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



yp_match — Fetches a record from a map based on a key name.


string yp_match(domain, map, key);
string domain: NIS domain name
string map: NIS map name (or nickname)
string key: Key to match


A string; FALSE on error


yp_match() fetches a record from a map based on the key provided. The key provided must match a key within the specified map, character for character.

If the key cannot be found, FALSE is returned.


PHP 3.0.7+, PHP 4+

See also

To fetch the first key/value pair from a map:


To fetch the next key/value pair from a map:


To fetch all key/value pairs from a map:


To process all key/value pairs in a map:



Example 1444. Try to find the line that refers to protocol number 8 within /etc/protocols

$domain = yp_get_default_domain ();
$map    = 'protocols.bynumber';
$key    = 8;

$value = yp_match ($domain, $map, $key)
   or die ("A value for key '$key' could not be found in map '$map' under domain '$domain'");

echo "The value for key '$key' in map '$map' under domain '$domain' is '$value'";

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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