//* Skip Cart Function by Sorin Marta @ MemberFix

add_filter ('woocommerce_add_to_cart_redirect', 'sorinmarta_redirect_to_checkout');
function sorinmarta_redirect_to_checkout() {
    $checkout_url = WC()->cart->get_checkout_url();
    return $checkout_url;
}

add_action( 'wp_head', 'sorinmarta_clear_cart' );
function sorinmarta_clear_cart() {
    if ( wc_get_page_id( 'cart' ) == get_the_ID() || wc_get_page_id( 'checkout' ) == get_the_ID() ) {
        return;
    }
    WC()->cart->empty_cart( true );
}