获取电台的动态ip

//filename: dns.php
//GET dns.php?mm=helong
<?php
$content = file_get_contents(&#39;ip.txt&#39;);
if($_GET["mm"]==&#39;helong&#39;)//简单认证
{
$ip = $_SERVER["REMOTE_ADDR"];
if($content!=$ip)
{
$xieru= fopen(&#39;ip.txt&#39;,&#39;w&#39;);
$result=fwrite($xieru,$ip); 
fclose($xieru); 
if($fwrite === false)
{
echo "update error!<br/>";
//飞信通知等代码....
}
else
echo "Change to ".$ip;
}
else
echo "No change ".$ip;
}
else
{
echo "Sorry,you don&#39;t have permission<br/>";
echo "Server ip: ".$content;
}

//dns.php文件上传到外部空间
//建立windows计划任务,执行下面的 bat

@echo off
rem 关闭回显命令

cd C:\Program Files\Internet Explorer\
rem 跳入IE所在目录

start iexplore.exe "http://yourdomain.org/dns.php?mm=helong"
rem 启动IE GET提交到外部空间

ping 127.1 -n 4 >nul 
rem 延时4秒
taskkill /im iexplore.exe /f
rem 关闭IE
rem 将以上代码保存到 postip.bat