Untitled

<?php
if ( !isset($_GET['aantaltickets']) ) {
?>
    <table>
    <form method="post" name="tickets_reserveren" action="tickets_reserveren.php">
    <?php echo $ticket->showReservationForm(); ?>
    </form>
    </table>
<?php
} elseif( isset($_GET['aantaltickets']) ) {
    echo '<table>';
    echo '<form method="post" name="tickets_reserveren" action="tickets_reserveren.php">';
    for($i=1;$i<=$_GET['aantaltickets'];$i++) {
        echo $ticket->showReservationForm();
    }
    echo '</form>';
    echo '</table>';
}
?>

<?php
    if ( isset($_POST['nieuwe_klant']) ) {
        echo "Nieuwe klant!";
    }
    if ( isset($_POST['bestaande_klant']) ) {
        echo "Bestaande klant!";         
    }
?>