WooCommerce Catalog Mode snippets
function wdm_add_to_cart_checkout_redirect() {
wp_safe_redirect( get_permalink( get_option( 'woocommerce_checkout_page_id' ) ) );
die();
}
add_action( 'woocommerce_add_to_cart', 'wdm_add_to_cart_checkout_redirect', 11 );