getservbyname

(PHP 4, PHP 5)

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

说明

int getservbyname ( string $service , string $protocol )

getservbyname() returns the Internet port which corresponds to service for the specified protocol as per /etc/services.

参数

service: The Internet service name, as a string.
protocol: protocol is either "tcp" or "udp" (in lowercase).

返回值

Returns the port number, or FALSE if service or protocol is not found.

范例

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";
}
?>

参见

getservbyport()
» http://www.iana.org/assignments/port-numbers for a complete list of port numbers.


	PHP5中文手册 getprotobynumber getservbyport Network PHP Manual getservbyname (PHP 4, PHP 5) getservbyname — Get port number associated with an Internet service and protocol 说明 int getservbyname ( string `$service` , string `$protocol` ) getservbyname() returns the Internet port which corresponds to `service` for the specified `protocol` as per `/etc/services`. 参数 `service` The Internet service name, as a string. `protocol` `protocol` is either "tcp" or "udp" (in lowercase). 返回值 Returns the port number, or `FALSE` if `service` or `protocol` is not found. 范例 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"; } ?>` 参见 getservbyport() » http://www.iana.org/assignments/port-numbers for a complete list of port numbers. getprotobynumber getservbyport Network PHP Manual