Blocksy Add Buy Now Button After Add to cart

add_buynow_button_after_addtocart.php

<?php
function add_buynow_button_after_addtocart() {    
        $current_product_id = get_the_ID();    
        $product = wc_get_product( $current_product_id );
        $checkout_url = WC()->cart->get_checkout_url();
        if( $product->is_type( 'simple' ) ){
         echo '<a href="'.$checkout_url.'?add-to-cart='.$current_product_id.'" class="ct-button">Buy Now</a>';
        }
    }
add_action( 'woocommerce_after_add_to_cart_button', 'add_buynow_button_after_addtocart', 99 );