我在主题主题的functions.php中使用以下代码在woocommerce单一产品页面上添加了一些自定义选项：

     function options_on_single_product(){
     ?>
      <input type="radio" name="option1" checked="checked" value="option1"> option 1 <br />
      <input type="radio" name="option1" value="option2"> option 2
       <?php
      }
       add_action("woocommerce_before_add_to_cart_button", "options_on_single_product");

现在,我想在购物车页面上显示所选的选项值.请帮我做到这一点.
谢谢

解决方法:

这是将产品自定义字段存储在购物车对象中并在购物车和结帐页面中显示的完整代码：

// Output the Custom field in Product pages
add_action("woocommerce_before_add_to_cart_button", "options_on_single_product", 1);
function options_on_single_product(){
    ?>
        <label for="custom_field">
            <input type="radio" name="custom_field" checked="checked" value="option1"> option 1 <br />
            <input type="radio" name="custom_field" value="option2"> option 2
        </label> <br />
    <?php
}

// Stores the custom field value in Cart object
add_filter( 'woocommerce_add_cart_item_data', 'save_custom_product_field_data', 10, 2 );
function save_custom_product_field_data( $cart_item_data, $product_id ) {
    if( isset( $_REQUEST['custom_field'] ) ) {
        $cart_item_data[ 'custom_field' ] = $_REQUEST['custom_field'];
        // below statement make sure every add to cart action as unique line item
        $cart_item_data['unique_key'] = md5( microtime().rand() );
        WC()->session->set( 'my_order_data', $_REQUEST['custom_field'] );
    }
    return $cart_item_data;
}

// Outuput custom Item value in Cart and Checkout pages
add_filter( 'woocommerce_get_item_data', 'output_custom_product_field_data', 10, 2 );
function output_custom_product_field_data( $cart_data, $cart_item ) {

    if( !empty( $cart_data ) )
        $custom_items = $cart_data;

    if( isset( $cart_item['custom_field'] ) ) {
        $custom_items[] = array(
            'key'       => __('Custom Item', 'woocommerce'),
            'value'     => $cart_item['custom_field'],
            'display'   => $cart_item['custom_field'],
        );
    }
    return $custom_items;
}

代码在您的活动子主题(或主题)的function.php文件中,或者在任何插件文件中.

此代码已经过测试并且可以工作.