Can someone help Me with payment system with php and handling request [closed]

So i use payment method with midtrans and its works. the problem was to use handler/ request to update mysql, i need to change status database. Help me please…..

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<?php 

namespace Midtrans;

    require('admin/inc/db_config.php');
    require('admin/inc/essentials.php');

    require('inc/midtrans/Midtrans.php');

    date_default_timezone_set("Asia/Jakarta");

    session_start();

    if(!(isset($_SESSION['login']) && $_SESSION['login']==true)){
        redirect('index.php');
    }

    if(isset($_POST['pay_now']))
    {
        Config::$serverKey = 'SB-Mid-server-cVWDFZurOiO0YqrkLCKn6qRS';
        Config::$clientKey = 'SB-Mid-client-mtGw2S9jLzeMkWx3';
        // Enable sanitization
        Config::$isSanitized = true;

        // Enable 3D-Secure
        Config::$is3ds = true;
        

        $CUST_ID = $_SESSION['uId'];
        $ORDER_ID =  'ORD_'.$_SESSION['uId'].random_int(11111,9999999);
        $gross_amount = $_SESSION['room']['payment'];


        $transaction_details = array(
            'order_id' => $ORDER_ID,
            'gross_amount' => $_SESSION['room']['payment'], // no decimal allowed for creditcard
        );

        $transaction_data = array(
            'transaction_details' => $transaction_details
          );

        $frm_data = filteration($_POST);

        $query1 = "INSERT INTO `booking_order`(`user_id`, `room_id`, `check_in`,`check_out`, `order_id`) VALUES (?,?,?,?,?)";

        insert($query1,[$CUST_ID,$_SESSION['room']['id'],$frm_data['checkin'],$frm_data['checkout'],$ORDER_ID],'issss');

        $booking_id = mysqli_insert_id($con);

        $query2 = "INSERT INTO `booking_details`(`booking_id`, `room_name`, `price`, `total_pay`,
            `user_name`, `phonenum`, `address`) VALUES (?,?,?,?,?,?,?)";
        
        insert($query2,[$booking_id,$_SESSION['room']['name'],$_SESSION['room']['price'],$gross_amount,$frm_data['name'],
            $frm_data['phonenum'],$frm_data['address']],'issssss');

        try {
            $snap_token = Snap::getSnapToken($transaction_data);
        } catch (\Exception $e) {
            echo $e->getMessage();
        }
       
    }
?>

<!DOCTYPE html>
<html>
    <body>
        <button id="pay-button">Pay!</button>
        <pre><div id="result-json">JSON result will appear here after payment:<br></div></pre> 

        <!-- TODO: Remove ".sandbox" from script src URL for production environment. Also input your client key in "data-client-key" -->
        <script src="https://app.sandbox.midtrans.com/snap/snap.js" data-client-key="<?php echo Config::$clientKey;?>"></script>
        <script type="text/javascript">
            document.getElementById('pay-button').onclick = function(){
                // SnapToken acquired from previous step
                snap.pay('<?php echo $snap_token?>', {
                    // Optional
                    onSuccess: function(result){
                        
                        $frm_data = filteration($_POST);

                        $q = "UPDATE `booking_order` SET `transaction_status`='paid' WHERE `order_id`=? ";
                        $values = [$frm_data['transaction_status']];
                        $res = update($q,$values,'ss');
                       
                        /* You may add your own js here, this is just example */ 
                        console.log('success');console.log(result);
                        // document.getElementById('result-json').innerHTML += JSON.stringify(result, null, 2);
                       
                        
                    },
                    // Optional
                    onPending: function(result){
                        /* You may add your own js here, this is just example */ 
                        // document.getElementById('result-json').innerHTML += JSON.stringify(result, null, 2);
                        console.log('pending');console.log(result);
                    },
                    // Optional
                    onError: function(result){
                        /* You may add your own js here, this is just example */ 
                        // document.getElementById('result-json').innerHTML += JSON.stringify(result, null, 2);
                        console.log('error');console.log(result);
                    }
                });
            };
        </script>
    </body>
</html>

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