Example for: gform_post_add_subscription_payment

gistfile1.php

/**
 * Send an email after somebody renews their subscription
 *
 * @param array $entry The Entry Object
 * @param array $action The Action Object
 * $action = array(
 *     'type' => 'cancel_subscription',     // See Below
 *     'transaction_id' => '',              // What is the ID of the transaction made?
 *     'subscription_id' => '',             // What is the ID of the Subscription made?
 *     'amount' => '0.00',                  // Amount to charge?
 *     'entry_id' => 1,                     // What entry to check?
 *     'transaction_type' => '',
 *     'payment_status' => '',
 *     'note' => ''
 * );
 *
 * 'type' can be:
 *
 * - complete_payment
 * - refund_payment
 * - fail_payment
 * - add_pending_payment
 * - void_authorization
 * - create_subscription
 * - cancel_subscription
 * - expire_subscription
 * - add_subscription_payment
 * - fail_subscription_payment
 */
function gfroms_after_add_subscription_renewed( $entry, $action ) {
	// Lets get the form where this renewal is from
	$form = GFAPI::get_form( $entry['form_id'] );

	// Lets send a form notification with the action triggered
	GFAPI::send_notifications( $form, $entry, rgar( $action, 'type' ) );
}
// We are using the 'gform_post_add_subscription_payment' hook here that fires right after a subscription is renewed
add_action( 'gform_post_add_subscription_payment', 'gfroms_after_add_subscription_renewed',  10, 2 );