Sort products at the bottom of the product list in cart WooCommerce by SKU

The following code will sort products last, based on the product sku

Related thread:

• Sort products at the bottom of the product list in cart WooCommerce by product ID

function sort_cart_specific_product_at_bottom( $cart ) {     // Product sku to to display at tbe bottom of the product list    $product_sku_last = array( 'lunchbox', 'pakket' );    // Set empty arrays    $products_in_cart = array();    $products_last = array();    $cart_contents = array();    // Loop through cart items    foreach ( $cart->get_cart() as $cart_item_key => $cart_item ) {        // Get product sku        $product_sku = $cart_item['data']->get_sku();        // Get product id        $product_id = $cart_item['data']->get_id();        // In_array — checks if a value exists in an array        if ( in_array( $product_sku, $product_sku_last ) ) {            // Add to products last array            $products_last[ $cart_item_key ] = $product_id;        } else {            // Add to products in cart array            $products_in_cart[ $cart_item_key ] = $product_id;        }    }    // Merges the elements together so that the values of one are appended to the end of the previous one.    $products_in_cart = array_merge( $products_in_cart, $products_last );    // Assign sorted items to cart    foreach ( $products_in_cart as $cart_item_key => $product_id ) {        $cart_contents[ $cart_item_key ] = $cart->cart_contents[ $cart_item_key ];    }    // Cart contents    $cart->cart_contents = $cart_contents;}add_action( 'woocommerce_cart_loaded_from_session', 'sort_cart_specific_product_at_bottom', 10, 1 );

And this code ensures that the items based on sku are not removable from the shopping cart

function prevent_cart_item_remove_link( $link, $cart_item_key ) {    // Product sku that should not be removable    $product_sku_last = array( 'lunchbox', 'pakket' );    if( WC()->cart->find_product_in_cart( $cart_item_key ) ) {        $cart_item = WC()->cart->cart_contents[ $cart_item_key ];        // Get product sku        $product_sku = $cart_item['data']->get_sku();        // In_array — checks if a value exists in an array        if ( in_array( $product_sku, $product_sku_last ) ) {            $link = '';        }    }    return $link;}add_filter( 'woocommerce_cart_item_remove_link', 'prevent_cart_item_remove_link', 10, 2 );