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# getservbyname

(PHP 4 , PHP 5)

getservbyname -- Get port number associated with an Internet service and protocol

## Description

int getservbyname ( string service, string protocol)

getservbyname() returns the Internet port which corresponds to service for the specified protocol as per `/etc/services`. protocol is either "tcp" or "udp" (in lowercase).

Exemplo 1. getservbyname() example
`<?php $services = array('http', 'ftp', 'ssh', 'telnet', 'imap', 'smtp', 'nicname', 'gopher', 'finger', 'pop3', 'www'); foreach ($services as $service) { $port = getservbyname($service, 'tcp'); echo $service . ": " . $port . "<br />\n"; } ?>`

For complete list of port numbers see: http://www.iana.org/assignments/port-numbers.

See also: getservbyport().

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