PHP Stripe Connect subscription flow

connect_sub.php

<?php
// Create a customer and subscribe them to a plan on a connected account -- should add some error handling

// Set your secret key -- generally this should be stored in a config file or ENV variable separate from this code
\Stripe\Stripe::setApiKey(PLATFORM_SECRET_KEY);

$token = $_POST['stripeToken'];
$acct = "acct_yourConnectedAcctID";

// Create a customer on the connected account
$customer = \Stripe\Customer::create(array(
  'description' => 'Marty Mcfly',
  'source' => $token
), array('stripe_account' => $acct));

// Create a plan on the connected account if one doesn't exist already
\Stripe\Plan::create(array(
  "amount" => 2000,
  "interval" => "month",
  "name" => "Amazing Gold Plan",
  "currency" => "usd",
  "id" => "gold"
), array('stripe_account' => $acct)); 

// Subscribe the customer to the plan and set a 10% app fee
$customer->subscriptions->create(array(
  "plan" => "gold", 
  "application_fee_percent" =>10
), array('stripe_account' => $acct));