请尝试以下代码：

在此仅显示页面/帖子URL和页面/帖子ID。您需要存储页面ID/URL，并且可以从数据库中获取。

NOTE : 这是仅在“详细信息”页面中工作的代码。

function custom_to_cart_item( $cart_item_data, $product_id, $variation_id ) {
    $page_url = wp_get_referer();
    $page_id = url_to_postid( $page_url );
}
add_filter( \'woocommerce_add_cart_item_data\', \'custom_to_cart_item\', 10, 3 );

我能够完成，下面是我使用的代码：

// To create a new product meta data with the page from which the product is added:

function custom_to_cart_item( $cart_item_data, $product_id, $variation_id ) {
$page_url = wp_get_referer();
$page_id = url_to_postid( $page_url );
$cart_item_data[\'page-of-addition\'] =  $page_id;

return $cart_item_data;}

add_filter( \'woocommerce_add_cart_item_data\', \'custom_to_cart_item\', 10, 3 );

function add_addition_page_to_order_items( $item, $cart_item_key, $values, $order ) {
if ( empty( $values[\'page-of-addition\'] ) ) {
    return;
}

$item->add_meta_data( __( \'Page of addition\', \'wpi18n\' ), $values[\'page-of-addition\'] );
}
add_action( \'woocommerce_checkout_create_order_line_item\', \'add_addition_page_to_order_items\', 10, 4 );