getprotobynumber
(PHP 4 )
getprotobynumber -- Get protocol name associated with protocol
number
Description
string getprotobynumber ( int number)
getprotobynumber() returns the protocol name associated
with protocol number as per /etc/protocols.
See also: getprotobyname().
getservbyname
(PHP 4 )
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).
Example 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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