blablabla

<html>
<form method=post>
<b>IP</b><input type=text name=ip value=127.0.0.1>
<input type=submit value=scan>
</form>

<?php

$ip = $_POST['ip'];

$ip2 = substr($ip,0,8);

for ( $i = 1; $i < 254; $i++ )
 {
  $fp = @fsockopen('$ip2.'.$i, 80, $errno, $errstr, 0.1);
  if( !$fp )
{
    echo $ip2.$i" =$ip2.$i offlinen";
  } else {

    echo $ip2.$i" =$ip2.$i onlinen";
    $ip3 = $ip2.$i;
  }
}

checkport($ip3,80)
function checkport($host, $port) {
  $fp = @fsockopen($host, $port, $errno, $errstr, 10);
  if ( !$fp ) {
    fclose($fp);
    echo "Port close";
  } else {
    fclose($fp);
    echo "Port open";
  }
}

?>