getservbyportDescriptiongetservbyport() returns the name of the service running on a port under the given protocol, as defined in your system's /etc/services or c:\windows\servicesfile. If the protocol is not recognized, the function returns FALSE. ExampleExample 841. Find out what service listens on a given port <?php $port = 23; $protocol = 'tcp'; $service = getservbyport ($port, $protocol) or die ("No service is assigned to port $port using the $protocol protocol."); echo "Port $port is assigned to the $service service using the $protocol protocol."; ?>
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
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The authors of this book have elected not to choose any options under the OPL. This online book was obtained
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