php portscanner

$port1 = 10;
$port2 = 105;
$hostdata = "127.0.0.1";

for ($i = $port1;$i<=$port2; $i++) {
$scan = @fsockopen("$hostdata", $i, $errno, $errstr, 100000000000000000000000);
if($scan) {
echo "Port " . $i . " is OPEN on " . $hostdata;
echo "
";
} else {
echo "Port " . $i . " is CLOSED on " . $hostdata;
echo "
";
}
}
?>