如何在空购物车页面中保存访客在woocommerce中添加到购物车的第一个商品的产品ID？

Question

I am trying to display the product id which is added to cart at first in empty cart page( cart-empty.php ). Can anyone please help me with any solution.

Here is my code I have tried for cart-totals.php page..which save both product slug and its parent slug which is added at last to the cart.

$items = $woocommerce->cart->get_cart();
            foreach($_SESSION['items'] as $item => $values) { 
                $_product = $values['data']->post; 
                $cartproductid = $_product->ID;
            }
            $product_cats = wp_get_post_terms( $cartproductid, 'product_cat' );
            $url=$product_cats[0]->slug;
            $parenturl=$product_cats[0]->parent;

  $terms = get_the_terms($cartproductid, "product_cat");
  $cat = get_term_by("id", $parenturl, "product_cat");
  $newurl = $cat->slug;

Answer 1

This code displays a message whenever a user removes an item from their cart. It may not be exactly what you want but it gives you something to start off with. Add this code to your theme functions.php or custom plugin code:

function this_function( $title , $cart_item){
    wc_add_notice( 'Visit deleted product <a href="' . get_permalink( $cart_item['product_id'] ) . '">' . $title . '</a>' );

    return $title;
}
add_filter( 'woocommerce_cart_item_removed_title', 'this_function', 10, 2 );

EDIT - More accurate solution : This code displays a message on the empty cart page with a link to the last deleted product. It works for users who are logged in. If you want the code to work for non-logged in visitors you'll need to modify this to use cookies.

class empty_cart
{
    public $last_product;
    protected static $_instance = null;

    public static function instance() {
        if ( is_null( self::$_instance ) ) {
            self::$_instance = new self();
        }
        return self::$_instance;
    }

    function __construct()
    {
        add_filter( 'woocommerce_cart_item_removed_title', array($this, 'product_removed'), 10, 2 );
        add_action( 'woocommerce_cart_is_empty',  array($this, 'cart_is_empty'));
    }
    function product_removed( $title , $cart_item){
        update_user_meta( get_current_user_id(), 'last_removed_product', $cart_item['product_id']);
        $this->last_product = $cart_item['product_id'];
        return $title;
    }
    function cart_is_empty(){
        $last_product = $this->get_last_product();
        echo 'Visit deleted product <a href="' . get_permalink( $last_product ) . '">' . get_the_title( $last_product ) . '</a>';
    }
    function get_last_product(){
        if( isset($this->last_product) )
            return $this->last_product;
        else
            return get_user_meta( get_current_user_id(), 'last_removed_product',true );
    }
}

function empty_cart() {
    return empty_cart::instance();
}
empty_cart();