我正在嘗試在WooCommerce購物車和結帳頁面中隱藏某些產品的優惠券欄位。在谷歌上搜尋後，我找到了一些代碼可以隱藏優惠券字段，但只適用於一個產品。

我該如何在這段程式碼中處理多個產品：

// hide coupon field on the checkout page function disable_coupon_field_on_checkout( $enabled ) { if ( is_checkout() ) { $product_id = 240790; $in_cart = false; foreach( WC()->cart->get_cart() as $cart_item ) { $product_in_cart = $cart_item['product_id']; if ( $product_in_cart === $product_id ) $in_cart = true; } if ( $in_cart === true ) { $enabled = false; } } return $enabled; } add_filter( 'woocommerce_coupons_enabled', 'disable_coupon_field_on_checkout' ); // hide coupon field on the cart page function disable_coupon_field_on_cart( $enabled ) { if ( is_cart() ) { $product_id = 240790; $in_cart = false; foreach( WC()->cart->get_cart() as $cart_item ) { $product_in_cart = $cart_item['product_id']; if ( $product_in_cart === $product_id ) $in_cart = true; } if ( $in_cart === true ) { $enabled = false; } } return $enabled; } add_filter( 'woocommerce_coupons_enabled', 'disable_coupon_field_on_cart' );