$geschlecht = $_POST['geschlecht'];
$gruppe = $_POST['gruppe'];
$bewerb = $_POST['bewerb'];

$fp = fsockopen("172.19.100.102", 9100, $errno, $errstr, 30);
$out = "1. zeile\r\n";
$out .= "2. zeile\r\n";
$out .= "3. zeile\r\n\r\n";
fwrite($fp, $out);
fclose($fp);