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getservbyname

getservbyname

(PHP 4, PHP 5)

getservbynameGet 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 /> ";
}
?>

参见


  • checkdnsrr
  • closelog
  • define_syslog_variables
  • dns_check_record
  • dns_get_mx
  • dns_get_record
  • fsockopen
  • gethostbyaddr
  • gethostbyname
  • gethostbynamel
  • gethostname
  • getmxrr
  • getprotobyname
  • getprotobynumber
  • getservbyname
  • getservbyport
  • header
  • headers_list
  • headers_sent
  • header_register_callback
  • header_remove
  • http_response_code
  • inet_ntop
  • inet_pton
  • ip2long
  • long2ip
  • openlog
  • pfsockopen
  • setcookie
  • setrawcookie
  • socket_get_status
  • socket_set_blocking
  • socket_set_timeout
  • syslog
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