get quantity from product in woocommerce code example
Example: get product price woocommerce of specific id
$product = wc_get_product( $post_id );
$product->get_regular_price();
$product->get_sale_price();
$product->get_price();
$product = wc_get_product( $post_id );
$product->get_regular_price();
$product->get_sale_price();
$product->get_price();