php实现的ping端口函数实例
本文实例讲述了php实现的ping端口函数。分享给大家供大家参考。
具体实现代码如下：
<?php
/*
*@author xujiajay
*@date 2010-10-7
*@function 可以ping端口的php函数
*
*/
error_reporting(E_ERROR);
header("content-Type:text/html;charset=utf-8");
set_time_limit(120);
$host=isset($_POST['url'])?chop(str_replace('http://','',$_POST['url'])):'www.baidu.com';
$port=isset($_POST['duankou'])?chop($_POST['duankou']):'80';
$num =10;
functionmicrotime_float()
{
list($usec,$sec)=explode("",microtime());
return((float)$usec+(float)$sec);
}
functiongetsoft($host,$port)
{
$fp=@fsockopen($host,$port,&$errno,&$errstr,3);
if(!$fp)return'unknown';
$get="GET/HTTP/1.1\r\nHost:".$host."\r\nConnection:Close\r\n\r\n";
@fputs($fp,$get);
$data='';
while($fp&&!feof($fp))
$data.=fread($fp,1024);
@fclose($fp);
$array=explode("\n",$data);
$k=2;
for($i=0;$i<20;$i++)
{
if(stristr($array[$i],'Server')){$k=$i;break;}
}
if(!stristr($array[$k],'Server'))return'unknown';
elsereturnstr_replace('Server','服务器软件',$array[$k]);
}
functionping($host,$port)
{
$time_start=microtime_float();
$ip=gethostbyname($host);
$fp=@fsockopen($host,$port,&$errno,&$errstr,1);
if(!$fp)return'Requesttimedout.'."\r\n";
$get="GET/HTTP/1.1\r\nHost:".$host."\r\nConnection:Close\r\n\r\n";
@fputs($fp,$get);
@fclose($fp);
$time_end=microtime_float();
$time=$time_end-$time_start;
$time=ceil($time*1000);
return'Replyfrom'.$ip.':time='.$time.'ms';
}
if(isset($_POST['url'])&&isset($_POST['duankou']))
{
echo'<fontcolor="#FF0000">'.getsoft($host,$port).'</font>';
echo'Pinging'.$host.'['.gethostbyname($host).']withPort:'.$port.'ofdata:'."\r\n";
ob_flush();
flush();
for($i=0;$i<$num;$i++)
{
echoping($host,$port);
ob_flush();
flush();
sleep(1);
}
}
?>
<formmethod="POST">
域名/IP：<inputtype="text"name="url"value="<?phpecho$host;?>"size="50">
端口：<inputtype="text"name="duankou"value="<?phpecho$port;?>"size="10">
<inputtype="submit"value="ping">
</form>
希望本文所述对大家的PHP程序设计有所帮助。