Remove application fees from all Stripe subscriptions.

my_pmpro_stripe_remove_all_application_fees.php

<?php

/**
 * Remove application fees from all Stripe subscriptions.
 * In order to run this script, the pmpro_stripe_remove_application_fees URL parameter must be set.
 * To reset the last processed subscription ID, the pmpro_stripe_remove_application_fees_reset URL parameter can also be set.
 *
 * ex. http://yoursite.com/?pmpro_stripe_remove_application_fees=1
 *
 * In order for this script to work, your site must either:
 * - Be connected to the Stripe platform account that created the subscriptions, OR
 * - Be completely disconnected from the platform account and use API keys.
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
function my_pmpro_stripe_remove_all_application_fees() {
	// Only run for admins.
	if ( ! current_user_can( 'manage_options' ) ) {
		return;
	}

	// Check whether we should run.
	if ( empty( $_GET['pmpro_stripe_remove_application_fees'] ) ) {
		return;
	}

	// Set up Stripe.
	new PMProGateway_stripe();

	// Get the last subscription ID that was processed.
	$last_subscription_id = get_option( 'my_pmpro_stripe_remove_all_application_fees_last_subscription_id', '' );
	$args = array(
		'limit' => 10, // Accepts a maximum of 100. Adjust as needed based on your hosting setup can handle.
	);
	if ( ! empty( $last_subscription_id && empty( $_REQUEST['pmpro_stripe_remove_application_fees_reset'] ) ) ) {
		$args['starting_after'] = $last_subscription_id;
	}
	$subscriptions = \Stripe\Subscription::all( $args );
	if ( empty( $subscriptions->data ) ) {
		echo "All subscriptions have been processed.";
		wp_die();
	}

	foreach ( $subscriptions->data as $subscription ) {
		// Update the subscription to remove the application_fee_percent
		try {
			\Stripe\Subscription::update(
				$subscription->id,
				[
					'application_fee_percent' => 0
				]
			);
			echo "Updated subscription: " . esc_html( $subscription->id ) . "<br>";
		} catch (Exception $e) {
			echo "Error updating subscription " . esc_html( $subscription->id ) . ": " . esc_html( $e->getMessage() ) . "<br>";
		}
		update_option( 'my_pmpro_stripe_remove_all_application_fees_last_subscription_id', $subscription->id );
	}
	wp_die();
}
add_action( 'init', 'my_pmpro_stripe_remove_all_application_fees' );