num_rows < 1) { JError("device id invalid"); } //get email address and username $sql = "SELECT `username`, `email` FROM `user` WHERE `id`=$user"; $query = ExecQuery($mysqli, $sql); $result = $query->fetch_assoc(); $email = $result['email']; $username = $result['username']; $code = $email . "~" . $device . "~"; $code .= RandomString(96 - strlen($code)); $code = str_rot13($code); $sql = "UPDATE `user` SET `code`='$code' WHERE `id`=$user"; ExecQuery($mysqli, $sql); $msg = "Hello " . $username . ",\n\n"; $msg .= "Please verify your new device by clicking the link below.\n"; $msg .= "Verify"; sendMail($email, "Verify Device", $msg); JSuccess("true"); ?>