(PHP 4, PHP 5, PHP 7)
getservbyname — 锟斤拷取锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷协锟斤拷锟接︼拷亩丝锟�
$service
, string $protocol
) : int
getservbyname()
锟斤拷锟截伙拷锟斤拷锟斤拷锟斤拷锟斤拷 service 指锟斤拷锟斤拷协锟斤拷 protocol 锟叫讹拷应锟侥端口ｏ拷
锟斤拷锟斤拷 /etc/services锟斤拷
service锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟狡碉拷锟街凤拷锟斤拷锟斤拷
protocol
protocol 锟饺匡拷锟斤拷锟斤拷 "tcp"
也锟斤拷锟斤拷锟斤拷 "udp" (小写)锟斤拷
锟斤拷锟截端口号ｏ拷锟斤拷锟� service 锟斤拷 protocol 未锟揭碉拷锟斤拷锟斤拷 FALSE锟斤拷
Example #1 getservbyname() 锟斤拷锟斤拷
<?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";
}
?>