php - Woo Commerce 仅允许一种类型的产品变体

Question

我已经使用 woo commerce 构建了一个可步进的购物车结账功能，它允许将 3 种类型的产品添加到购物车中。类型 1 可以有两种变体，类型 2 只是一种产品，但类型 3 是会员类型（我只能允许将其中一种添加到购物车）

我的产品添加到购物车链接 www.example.com/cart-2/step3/?add-to-cart=1455

我已添加到我的 function.php 文件中的内容，但不限制用户向购物车添加多个成员资格时的内容。当前的会员类别标签是“会员”

add_action('woocommerce_add_to_cart', 'custom');
function custom() {
    $cart = WC()->cart->get_cart();

    print_r($cart);

    $first_id  = 1455;    // ID of the first product
    $second_id  = 1456;   // ID of the second product
    $third_id  = 1457;    // ID of the third product

    // Loop through cart items
    foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item) {
        // Check if the  product is in cart
        $Item_inCart = $cart_item['data']->get_id();
        if ( ($Item_inCart == $first_id) && ($Item_inCart == $second_id) ||  ($Item_inCart == $third_id) ) {
            print_r($first_id);
            $prod_to_remove = '';

            if( $prod_to_remove == $third_id || $prod_to_remove == $second_id) {
            // Get it's unique ID within the Cart
            $prod_unique_id = WC()->cart->generate_cart_id( $third_id );
            $prod_unique_id2 = WC()->cart->generate_cart_id( $second_id );
            // Remove it from the cart by un-setting it
            unset( WC()->cart->cart_contents[$prod_unique_id] );
            unset( WC()->cart->cart_contents[$prod_unique_id2] );
        } 
        }  
        if ( ($Item_inCart == $second_id) && ($Item_inCart == $first_id) ||  ($Item_inCart == $third_id) ) {
            print_r($second_id);
             $prod_to_remove = '';
            if( $prod_to_remove == $first_id || $prod_to_remove == $third_id) {
             // Get it's unique ID within the Cart
             $prod_unique_id = WC()->cart->generate_cart_id( $first_id );
             $prod_unique_id2 = WC()->cart->generate_cart_id( $third_id );
             // Remove it from the cart by un-setting it
             unset( WC()->cart->cart_contents[$prod_unique_id] );
             unset( WC()->cart->cart_contents[$prod_unique_id2] );
         } 
         }    
         if ( ($Item_inCart == $third_id) && ($Item_inCart == $first_id) ||  ($Item_inCart == $second_id) ) {
            print_r($third_id);
             $prod_to_remove = '';
            if( $prod_to_remove == $second_id || $prod_to_remove == $first_id) {
             // Get it's unique ID within the Cart
             $prod_unique_id = WC()->cart->generate_cart_id( $second_id );
             $prod_unique_id2 = WC()->cart->generate_cart_id( $first_id );
             // Remove it from the cart by un-setting it
             unset( WC()->cart->cart_contents[$prod_unique_id] );
             unset( WC()->cart->cart_contents[$prod_unique_id2] );
         } 
         }    
    }

}

感谢您的任何帮助

标签： phpwordpresswoocommerce