MemberPress: Disable Reminders if a Member has Any Active Subscription

add_filter('mepr-sub-expires-reminder-disable', function ($disable_email, $reminder, $usr, $prd) {

  $active_product_subscriptions = $usr->active_product_subscriptions('ids');

  // Disable reminders if member has any active subscription.

  if(!empty($active_product_subscriptions)) {

    $disable_email = true;

  }

  return $disable_email;

}, 10, 4);