apfs-select-subscription-plan-by-default

<?php
/**
 * Plugin Name: All Products for WooCommerce Subscriptions - Select a subscription plan as the default option
 * Plugin URI: https://woocommerce.com/products/all-products-for-woocommerce-subscriptions/
 * Description: Use this plugin to select a subscription plan as the default option
 * Version: 1.0
 * Author: WooCommerce
 * Author URI: https://woocommerce.com/
 * Developer: Jason Kytros
 *
 * Requires at least: 2.6.0
 * Tested up to: 6.8
 *
 * Copyright: © 2022 Automattic.
 * License: GNU General Public License v3.0
 * License URI: http://www.gnu.org/licenses/gpl-3.0.html
 */

add_filter( 'wcsatt_get_default_subscription_scheme_id', 'default_to_subscription', 10, 4 );

function default_to_subscription( $default_subscription_scheme_key, $subscription_schemes, $force_subscription, $product ) {
	$default_scheme                  = current( $subscription_schemes );
	$default_subscription_scheme_key = $default_scheme->get_key();
	return $default_subscription_scheme_key;
}