PHP Manuál
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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). Returns FALSE if service or protocol is not found.

Príklad 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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getprotobynumberHoregetservbyport