Save product custom field radio button value in cart and display it on Cart page

Question

I have added some custom options on woocommerce single product page using the code below on my theme\'s functions.php:

     function options_on_single_produc         


        

Answer 1

Here is the complete code to Store product custom field in cart object and display that in Cart and Checkout pages:

// 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(){
    ?>
        
             option 1 

             option 2
         

    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;
}

Code goes in function.php file of your active child theme (or theme) or also in any plugin file.

This code is tested and works.