$sum = 0;
$sqli = "SELECT * FROM tblwalkins WHERE Customer_ID='{$customerid}'";
$resulti = mysqli_query($conn, $sqli);
$row = mysqli_fetch_assoc($resulti);
$addamount = $row['Addonpayable'];
$sum = $addamount + $amount;
$sql = "SELECT * FROM tbladdons WHERE item='{$item}'";
$result = mysqli_query($conn, $sql);
$row1 = mysqli_fetch_assoc($result);
$qty = $row1['quantity'];
$total = $qty - $quantity;
if ($quantity == 0) {
echo 'quantity is required';
} else {
if ($sum == 0) {
echo 'Payable is required';
} else {
$addon = Addon::UpdateQuantity($total, $item);
$addingon = Walkin::UpdateAddonPayable($sum, $customerid);
$reserveaddon = new AddonReserve($customerid, $item, $quantity, $price);
if ($addingon) {
if ($reserveaddon->AddonReserve()) {
if ($addon) {
echo "true";
}
}
} else {
echo "error";
}
}
}
