如何使用redbean php从表单页面检索id到另一个页面

im creating a form using redbean php. however i had trouble in passing id in form.php to thankyou.php . i need to display total price in thank you page after customer submit form. i dont know what im missing in my code. please help me. thank you.

form.php

<?php

session_start();

require_once 'redbean_orm/rb.php';

$connection = new PDO('mysql:host=localhost;dbname=ocms','root','');

R::setup($connection);

$_SESSION["submit"] = '';

if(isset($_POST['submit']) && $_SERVER['REQUEST_METHOD'] === "POST") {

//create table and field 
$customerinfo = R::dispense('customer');
$customerinfo->name = $_POST['name']; 
$customerinfo->address = $_POST['address']; 
$customerinfo->price = $_POST['price'];
$id = R::store($customerinfo);?>

<html>
<body>
    <div class="container">
        <div class="row">
            <div class="col-md-8">
    <form action="" method="POST" id="contact-form">
        <div class="form-group">
            <label>Full Name</label>
            <input type="text" class="form-control" name="name" placeholder="Name" required>
        </div>
        <div class="form-group">
            <label>Address</label>
            <textarea type="text" class="form-control" name="address" placeholder="Address"></textarea>
            <!--<input type="text" class="form-control" name="address" placeholder="Address" required>-->
        </div>
        <div class="form-group">
            <label>Price</label>
            <input class="form-control" name="price" value="RM100.00" readonly="readonly" type="text" id="total">
        </div>
        <div class="form-group">
            <button class="btn btn-info" name="submit">
                <a href="thankyou.php?id=<?php echo $id;?>" 
                style="text-decoration: none;">Submit</a></button>
                <!--<?php echo R::load('users',$_POST['id']); ?>-->
        </div>
    </form>
</body>
</html>

thankyou.php

<?php
session_start();

require_once 'redbean_orm/rb.php';

$connection = new PDO('mysql:host=localhost;dbname=ocms','root','');

R::setup($connection);

if (isset($_SESSION["submit"])) {

  $userinfo = R::load('users',$_GET['id']);
}
?>

<!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">
  <title>Thank You</title>
</head>

<body>

  <div class="jumbotron text-xs-center">
  <h1 class="display-3">Thank You For Your Request!</h1><br>
  <p class="lead"><strong>Your total charge :</strong><br>
    <?php 
    foreach (R::find('users') as $customer) {
      echo $customer = $_GET['id'].$customer['price'];
    }
    ?>
    <!--<input name="price" value="<?php echo $userinfo->price ?>" readonly="readonly" type="text">-->
  </p>
  <hr>
</div>
</body>

</html>

i am familiar with sql but when used redbean php it quite confusing.

for anyone who is looking for this solution. i found it myself. i shouldnt save price in database. just store in session and send it thankyou.php. Thank you for looking here. solution: inside post, i add $_SESSION['price'] = $_POST['price']; Then in thankyou.php. i insert echo $_SESSION['price'].