// track.php - receives form then redirects to track-result.php with consignment in querystring

// get the consignment from POST or GET
$cons = '';
if (isset($_POST['Consignment']) && $_POST['Consignment'] !== '') {
    $cons = trim($_POST['Consignment']);
} elseif (isset($_GET['Consignment']) && $_GET['Consignment'] !== '') {
    $cons = trim($_GET['Consignment']);
}

// if empty, go back to main page
if ($cons === '') {
    header('Location: /index.php');
    exit;
}

// redirect to track-result.php
header("Location: /track-result.php?Consignment=" . urlencode($cons));
exit;
?>