I need to get the selected custom option value of product added in the cart. To observe the product add to cart, i have used an event checkout_cart_product_add_after

In the observer, I have loaded the product using below code:

$item = $observer->getEvent()->getData('quote_item');
$product = $observer->getEvent()->getData('product');

I am able to get product quantity added to the cart using $product->getQty() however, i am not getting the values of selected custom option.

By using below code i can get all the custom options for product

foreach($product->getOptions() as $o){
        $optionType = $o->getType();
        foreach($o->getValues() as $value){
            echo "<pre>";
            echo "</pre>";

Can anyone please guide how to get selected option value.


As per the answer by Raphael, i observed an event catalog_product_type_prepare_full_options and got the value of selected option for the product.

Now, my problem is i need to pass these values to the observer i have created for checkout_cart_product_add_after. The reason behind this is, I am trying to add a product into cart when certain product with selected custom option is added to the basket.

Is there a way to pass these value to my observer or any better/correct solution for this.

2 Answers 2


I was not able to get the selected custom option on event checkout_cart_product_add_after

however, i was successful in getting the values using checkout_cart_save_before event.

For those who might need it in future. The code for retrieving the custom options is as below:

public function execute(\Magento\Framework\Event\Observer $observer) {  
    /* Fetches data of items available in cart. */
    $cart = $observer->getEvent()->getData('cart');
    $cartItems = $cart->getItems();

    foreach($cartItems as $item){
        //here you do what you want with the product.
        $_customOptions = $item->getProduct()->getTypeInstance(true)->getOrderOptions($item->getProduct()); 
        if(array_key_exists('options', $_customOptions)){
            foreach($_customOptions['options'] as $option){

Hope it helps. I am accepting this answer as this is the closest I could get to. I will be happy to accept the solution if someone posts it.

  • I am struggling to add price of custom option with my product price. since i am getting the additional price using your above solution , how can i add this price in product total price?
    – Yudi
    Commented Feb 17, 2017 at 7:51

As an alternative I reckon you should try observing catalog_product_type_prepare_full_options which is the event that is dispatched when Magento prepare the custom defined options for a product before adding it to the cart. It is declared in /Magento/Catalog/Model/Product/Type/AbstractType :

protected function _prepareOptions(\Magento\Framework\DataObject $buyRequest, $product, $processMode)
    $transport = new \StdClass();
    $transport->options = [];
    foreach ($product->getOptions() as $option) {
        /* @var $option \Magento\Catalog\Model\Product\Option */
        $group = $option->groupFactory($option->getType())

        $preparedValue = $group->prepareForCart();
        if ($preparedValue !== null) {
            $transport->options[$option->getId()] = $preparedValue;

    $eventName = sprintf('catalog_product_type_prepare_%s_options', $processMode);
        ['transport' => $transport, 'buy_request' => $buyRequest, 'product' => $product]
    return $transport->options;

You should be able to retrieve the selected option with the following code:

$transport = $observer->getEvent()->getData('transport');
$chosenOption = $transport->options;
  • Thanks for your suggestion, but the thing is I can't use this event as i need to add a product to the cart once a particular product is added with selected custom option. Hence, i am using checkout_cart_product_add_after event for this. I need to get the option value from there.
    – Dexter
    Commented May 20, 2016 at 5:55
  • Do you know a way how i can get the selected option value from event catalog_product_type_prepare_full_options and pass it to checkout_cart_product_add_after observer file?
    – Dexter
    Commented May 20, 2016 at 6:41
  • do you know how can i get the SKU of the options selected from option id?
    – Dexter
    Commented May 20, 2016 at 9:53
  • @Dexter Hmm I'm not sure I reckon you should try to open a new question for that and close this one if my answer helped you Commented May 20, 2016 at 10:05
  • I can only give you +1 but can't accept at present, as I need to get the selected custom option on checkout_cart_product_add_after which still remains a mistery. However your answer helped me a lot in exploring. Thanks
    – Dexter
    Commented May 20, 2016 at 12:02

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