0) {
$sql = "select tvalid from voteattend where aid = '$tnum'";
$result = $conn->query($sql);
$num = $result->num_rows;
if($num > 0) {
$row = $result->fetch_assoc();
$vstatus = $row["tvalid"];
if ($vstatus <> 1) {
$_SESSION['num_show'] = $tnum." 號票未有登記!";
header("Location:deletetheticket.php");
} else {
$sql = "Update voteattend set tvalid=0 where aid = '$tnum'";
$result = $conn->query($sql);
$_SESSION['num_show'] = $tnum." 號票成功取消登記!";
}
}
} else {
$_SESSION['num_show'] = $tnum." 號不是票,取消登記失敗!";
}
header("Location:deletetheticket.php");
?>