How to make a product counter in WordPress?

Question

WordPress

It is necessary to make a counter of goods on Wordpress

so that it looks like this: to be

honest, I don’t understand Wordpress well, so please tell me in detail how this can be implemented

Answer 1

WP has no products...
If you have Woocommerce
https://wp-kama.ru/plugin/woocommerce/function/WC_...

$WC_Cart = new WC_Cart();
echo $WC_Cart->get_cart_contents_count();