复制代码 代码如下:

string getservbyport ( int $port , string $protocol )
 
*/
$services=array(\'80\',\'21\',\'22\',\'23\',\'25\',\'143\');      //定义数组
foreach($services as $service)         //循环读取内容
{
  $protocol=getservbyport($service,\'tcp\');       //返回端口号对应的协议
  echo $service.\":\".$protocol.\"<br/>n\";       //输出结果
}
 
/*
int getservbyname ( string $service , string $protocol )
*/
 
$services=array(\'http\',\'ftp\',\'ssh\',\'telnet\',\'imap\',
\'smtp\',\'nicname\',\'gopher\',\'finger\',\'pop3\',\'www\');       //定义一个数组
foreach($services as $service)          //循环读取内容
{
  $port=getservbyname($service,\'tcp\');        //获取数组元素对应端口
  echo $service.\":\".$port.\"<br/>n\";         //输出结果
}