When you place things in a WooCommerce cart and go to the cart page, it is possible to delete the items one by one. But if you have many things in the cart, it would be nice to have a “Clear Cart” button that removes everyone with one click.

Place the following code anywhere in your child theme’s functions.php document.

Now there will be a “Clear Cart” button next to the “Update Cart” button in your cart.

// add a "clear cart" button to the woocommerce cart page
function add_clear_cart_button() {
    echo '<a href="' . esc_url( add_query_arg( 'clear-cart', 'true' ) ) . '" class="button clear-cart">Clear Cart</a>';
}
add_action('woocommerce_cart_actions', 'add_clear_cart_button');
    
// handle the "clear cart" functionality
function handle_clear_cart() {
    if (isset($_GET['clear-cart']) && $_GET['clear-cart'] == 'true') {
        WC()->cart->empty_cart();
        wp_redirect(wc_get_cart_url());
        exit;
    }
}
add_action('init', 'handle_clear_cart');