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php中getservbyport与getservbyname函数用法实例

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Release: 2016-06-06 20:17:23
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这篇文章主要介绍了php中getservbyport与getservbyname函数用法,以实例形式分析了getservbyport与getservbyname函数获取server端的端口等信息的方法,需要的朋友

本文实例讲述了php中getservbyport与getservbyname函数用法。分享给大家供大家参考。具体如下:

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."
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."
n";         //输出结果
}

希望本文所述对大家的php程序设计有所帮助。

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