I"m struggling with Stripe. I'm using PHP and I'm trying to set up a simple store, with no CMS. Wondering how I can pass the amount into charge.php so I can charge different amounts for different products. Here's my code:

```
$charge = Stripe_Charge::create(array(
      'customer' => $customer->id,
      'amount'   => 1900;,
      'currency' => 'gbp'
  ));

```

Here's the code from index.php - I would like to charge the customer whatever is in "data-amount" on the form below. Not quite sure how to do so.

```
<form action="inc/charge.php" method="POST">
    <script
            src="https://checkout.stripe.com/checkout.js" class="stripe-button"
            data-key="<?php echo $stripe['publishable_key']; ?>"
            data-amount="1900"
            data-currency="GBP"
            data-name="Pure - Tumblr Theme"
            data-allow-remember-me="false"
            data-description="Premium Tumblr Theme"
            data-image="/128x128.png">
          </script>
</form>

```