title: Fatal error: Call to undefined method Stripe_Subscription::create() in PHP
body: <pre><code>Stripe_Subscription::create(array(
    "customer" =&gt; $customer_id,
    "plan" =&gt; $plan_id,
    "trial_end" =&gt; $strtotime,
  ));
  </code></pre>
  
  <p>This code is not working for me, I have tried it in many ways. I have created customer and plan but I cannot add subscription for user.</p>