Rik Nijdeken Rik Nijdeken - 1 year ago 71
SQL Question

PDO bindParam not working "bindParam() on a non-object"

I am trying out the Mollie payment processor for a CMS that I'm creating but I've ran into a problem. When I try to input the data into a MySQL database it does not do that. I am getting this error:

Fatal error: Call to a member function bindParam() on a non-object in /home/ubuntu/workspace/examples/01-new-payment.php on line 83

This is the complete code:

* Example 1 - How to prepare a new payment with the Mollie API.

$amount = 100.50;
$description = "Booking for Villa Hijau";
$days = 10;
$name = "####";
$email = "####";

try {
* Initialize the Mollie API library with your API key.
* See: https://www.mollie.com/beheer/account/profielen/
include "initialize.php";

* Generate a unique order id for this example. It is important to include this unique attribute
* in the redirectUrl (below) so a proper return page can be shown to the customer.
$order_id = time();

* Determine the url parts to these example files.
$protocol = isset($_SERVER['HTTPS']) && strcasecmp('off', $_SERVER['HTTPS']) !== 0 ? "https" : "http";
$hostname = $_SERVER['HTTP_HOST'];
$path = dirname(isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : $_SERVER['PHP_SELF']);

* Payment parameters:
* amount Amount in EUROs. This example creates a € 10,- payment.
* description Description of the payment.
* redirectUrl Redirect location. The customer will be redirected there after the payment.
* webhookUrl Webhook location, used to report when the payment changes state.
* metadata Custom metadata that is stored with the payment.
$payment = $mollie->payments->create(array(
"amount" => $amount,
"description" => $description,
"redirectUrl" => "{$protocol}://{$hostname}{$path}/03-return-page.php?order_id={$order_id}",
"webhookUrl" => "{$protocol}://{$hostname}{$path}/02-webhook-verification.php",
"metadata" => array(
"order_id" => $order_id

* In this example we store the order with its payment status in a database.
database_write($order_id, $payment->status, $amount, $description, $days, $name, $email);

* Send the customer off to complete the payment.
header("Location: " . $payment->getPaymentUrl());
catch (Mollie_API_Exception $e) {
echo "API call failed: " . htmlspecialchars($e->getMessage());

* NOTE: This example uses a text file as a database. Please use a real database like MySQL in production code.
function database_write($order_id, $status, $amount, $description, $days, $name, $email)
$db_user = 'mollie';
$db_pass = '####';
$order_id = intval($order_id);
// Use $status to get the order status
$dbh = new PDO('mysql:host=localhost;dbname=orders', $db_user, $db_pass);
$stmt = "INSERT INTO order (id, order_name, order_description, order_amount, order_customer, order_customer_email, order_status) VALUES (?,?,?,?,?,?,?)";

Thanks in advance!
~ Rik

Answer Source

You should prepare your sql statement

 $stmt = $dbh->prepare( "INSERT INTO order 
  (id, order_name, order_description, order_amount, order_customer, 
 order_customer_email, order_status) 
           VALUES (?,?,?,?,?,?,?)";

like suggested bu Fred-ii be careful because you are using the word "order",

this is a MySQL reserved word,

then you should use backtics around the this term

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