Those are variables passed by the trigger. Specifically for onCPayUserStateChange The variables are as follows.
Code:
/**
* Called at each change of user subscription state due to a plan activation or deactivation
*
* @param UserTable $user
* @param string $status
* @param int $planId
* @param int $replacedPlanId
* @param ParamsInterface $integrationParams
* @param string $cause 'PaidSubscription' (first activation only), 'SubscriptionActivated' (renewals, cancellation reversals), 'SubscriptionDeactivated', 'Denied'
* @param string $reason 'N' new subscription, 'R' renewal, 'U'=update )
* @param int $now Unix time
* @param cbpaidSomething $subscription Subscription/Donation/Merchandise record
* @param int $autorenewed 0: not auto-renewing (manually renewed), 1: automatically renewed (if $reason == 'R')
*/
public function onCPayUserStateChange( &$user, $status, $planId, $replacedPlanId, &$integrationParams, $cause, $reason, $now, &$subscription, $autorenewed );
See the below for list of triggers and their variables (note this gradually goes out of date, but I try to update it as often as possible).
krileon
