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<?php
function hosts($hostport,$description,$hostname){

            $fspn = fsockopen($hostname, $hostport, &$errno, &$errstr, 4);
            if (!$fspn){
                $data = "<tr><td>$description :</td><td>Erreichbar: ($hostname)</td></tr>";
            } else {
               $data = " <tr><td>$description :</td><td>Nicht Erreichbar: ($hostname)</td></tr>";
                fclose($fspn);
            }
            return $data;
        }

?>
<form method="POST" action="<?php $PHP_SELF ?>">
<input type="text" name="adresse"><input type="submit" name="submit">
<?php
echo "<table border=\"0\">;
 for ($zaehler=1;$zaehler<=100;$zaehler++) {
 echo hosts("$zaehler","","$hostname");
 }
echo </table>;
?>

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echo "<table border="0">";

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echo "</table>";

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<?php
function hosts($adresse,$hostport){

            $fp = fsockopen($adresse, $hostport, &$errno, &$errstr, 30);
            if ($errno != 0){
                $data = "Nicht Erreichbar: $hostport <br />" ;
            } else {
               $data = " Erreichbar: $hostport <br />";
                fclose($fp);
            }
            return $data;
        }

?>
<form method="POST" action="<?php $PHP_SELF ?>">
<input type="text" name="adresse"><input type="submit" name="submit">

<?php
echo "<table border="0">";

for ($hostport=1;$hostport<=100;$hostport++) {
 echo hosts("$adresse",$hostport);
 flush();
}

echo "</table>";
?>