Display a custom calculated cart item price in WooCommerce
问题 In WooCommerce, I'm trying to calculate the price of a variable product in the cart. I want to multiply the product price with some custom cart item numerical value. Here is my code: add_filter( 'woocommerce_cart_item_price', 'func_change_product_price_cart', 10, 3 ); function func_change_product_price_cart($price, $cart_item, $cart_item_key){ if (isset($cart_item['length'])){ $price = $cart_item['length']*(price of variation); return $price; } } The price calculation doesn't work. What I am