wcfm-alter-between-stripe-and-stripe-split-pay

add_filter( 'woocommerce_available_payment_gateways', function ( $available_gateways ) {
    if(is_admin()) return $available_gateways;
    $membership_product = false;
    foreach (WC()->cart->get_cart() as $cart_item_key => $cart_item) {
        $_product = apply_filters('woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key);
        if ($_product && $_product->exists() && $cart_item['quantity'] > 0 && apply_filters('woocommerce_checkout_cart_item_visible', true, $cart_item, $cart_item_key)) {
            $membership_id = get_post_meta($_product->get_id(), '_wcfm_membership', true);
            if(wcfm_is_valid_membership($membership_id)) {
                $membership_product = true;
                break;
            }
        }
    }
    if($membership_product && isset( $available_gateways['stripe_split'] ) ) {
        unset($available_gateways['stripe_split']);
    } elseif( ! $membership_product && isset( $available_gateways['stripe'] )) {
        unset($available_gateways['stripe']);
    }
    return $available_gateways;
}, 90);