<?php

    $seatsAdult = $_GET['a'];
    $seatsChild = $_GET['c'];
    $seatsSenior = $_GET['s'];
    $seatsMilitary = $_GET['m'];

    if (isset($_POST['update'])) {
        $seatsAdult = $_POST['adult'];
        $seatsChild = $_POST['child'];
        $seatsSenior = $_POST['senior'];
        $seatsMilitary = $_POST['military'];
    }

    if (isset($_POST['cptickets'])) {
        $ticketTotal = $_GET['ticketTotal'];

        $seatsAdult = $_GET['a'];
        $seatsChild = $_GET['c'];
        $seatsSenior = $_GET['s'];
        $seatsMilitary = $_GET['m'];

        echo '<form name="MyForm" action="confirmandpurchase.php?ticketTotal=' . $ticketTotal .'&a=' . $seatsAdult .'&c=' . $seatsChild . '&s=' . $seatsSenior . '&m=' . $seatsMilitary . '" method="post"></form>';

        echo '<script type="text/javascript">document.MyForm.submit();</script>';
    }

    if ($seatsAdult > 9) {
        $adultTotal = $seatsAdult * 10;
    }else{
        $adultTotal = $seatsAdult * 15;
    }

    $childTotal = $seatsChild * 10;
    $seniorTotal = $seatsSenior * 10;
    $militaryTotal = $seatsMilitary * 10;
    $ticketSTotal = $adultTotal + $childTotal + $seniorTotal + $militaryTotal;
    $ticketTotal = $ticketSTotal + 1;

    echo "<p>How many tickets would you like?<br />";
    echo "<i>(Group rates automatically figured on Adult tickets)</i></p>";
    echo '<form action="ticket.php?&a=' . $seatsAdult . '&c=' . $seatsChild . '&s=' . $seatsSenior . '&m=' . $seatsMilitary . '" method="post">';
    echo '<table><tr><td>Amt.</td><td>Type of ticket</td></tr>
        <tr><td><input type="textbox" size="3" name="adult" value="' . $seatsAdult . '"></input></td><td>Adult -- $15 ($10 for groups of 10 or more)</td></tr>
        <tr><td><input type="textbox" size="3" name="child" value="' . $seatsChild . '"></input></td><td>Student -- $10</td></tr>
        <tr><td><input type="textbox" size="3" name="senior" value="' . $seatsSenior . '"></input></td><td>Senior (55+) -- $10</td></tr>
        <tr><td><input type="textbox" size="3" name="military" value="' . $seatsMilitary . '"></input></td><td>Military/Active Duty -- $10</td</tr></table>';
    echo '<table><tr><td>Subtotal:</td><td>$' . $ticketSTotal . '.00</td></tr>';
    echo '<tr><td>Processing and Shipping:</td><td>$1.00</td></tr>';
    echo '<tr><td>Total:</td><td>$' . $ticketTotal . '.00</td></tr></table>';
    echo '<br /><input type="submit" name="update" value="Update Total Price" /></form>';

    if (isset($_POST['update'])){
        echo '<form action="ticket.php?ticketTotal=' . $ticketTotal .'&a=' . $seatsAdult . '&c=' . $seatsChild . '&s=' . $seatsSenior . '&m=' . $seatsMilitary . '" method="post"><input type="submit" name="cptickets" value="Confirm & Purchase Tickets" /></p></form>';
    } else {
        echo '';
    }
?>