Stripe create a new customer each payement - stripe-payments

Question

SOLUTION : Store in db the object Charge with the user id and check each time if we know this user or not :
$customerAlreadyKnown = OrdersModel::checkIfUserKnown($email);
If we know it then we have to update customer source (don't know why) :
if(gettype($customerAlreadyKnown)=='array'){
\Stripe\Customer::update(
$customerAlreadyKnown[0]['user_id'],
['source' => $token]
);
$charge = \Stripe\Charge::create([
'customer' => $customerAlreadyKnown[0]['user_id'],
'amount' => $itemPrice,
'currency' => 'eur',
'description' => $_POST['description'],
'metadata' => array(
'order_id' => $orderID,
),
]);
Else we create a new customer
}else{
// Add customer to stripe
$customer = \Stripe\Customer::create(array(
'email' => $email,
'card' => $token,
));
$charge = \Stripe\Charge::create([
'customer' => $customer->id,
'amount' => $itemPrice,
'currency' => 'eur',
'description' => $_POST['description'],
'metadata' => array(
'order_id' => $orderID,
),
]);
}

Answer 1

You are creating a new Token and Customer for each payment. You should instead identify your existing Customers (store a relation table locally on your application) in some way (e.g. by their email_address or the Token's Card fingerprint). Then instead of using the new Token and a new Customer, retrieve the existing customer as $customer before you charge (their existing Card will be used automatically).