Disable cart page but keep the checkout page in Woocommerce

Question

I'm currently looking for a better way then this question here to remove / disable the cart page in my WooCommerce installation:

Disabling shopping basket in WooCommerce

So I want to show a 404 instead of a redirect so that it's clear that this page doesn't exists.

The functionality must be there because my shop can't work anymore without this.

To make all clear:

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I've build a custom button which adds the products to the "cart" and redirect directly to the checkout page. This should be the only available process!

Answer 1

Try the following that will handle cart redirection:

add_action( 'template_redirect', 'skip_cart_redirect' );
function skip_cart_redirect(){
    // Redirect to checkout (when cart is not empty)
    if ( ! WC()->cart->is_empty() && is_cart() ) {
        wp_safe_redirect( wc_get_checkout_url() ); 
        exit();
    }
    // Redirect to shop if cart is empty
    elseif ( WC()->cart->is_empty() && is_cart() ) {
        wp_safe_redirect( wc_get_page_permalink( 'shop' ) );
        exit();
    }
}

Code goes in function.php file of your active child theme (or active theme). It should works.

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If you want to have a 404 for cart page you can use a fake page url that will make a 404 like:

add_action( 'template_redirect', 'cart_redirect_404' );
function cart_redirect_404(){
    // Redirect to non existing page that will make a 404
    if ( is_cart() ) {
        wp_safe_redirect( home_url('/cart-page/') ); 
        exit();
    }
}

Code goes in function.php file of your active child theme (or active theme). It should works.