Quantity discount on 2nd item only in Woocommerce

Question

I want to achieve a global discount for all products but only for the 2nd product item.

What do I mean? If the customer buys \"Jacket\" no discount is given.

Answer 1

add_action( 'woocommerce_before_calculate_totals', 'set_the_discount' );

function set_the_discount( $cart ) {

foreach ( $cart->cart_contents as $key => $value ) {    

    //please check whether your item is the second item of your cart or not?

    //if this is your second item in your cart

    //Set the 50% discount

    $product_id = $value['product_id'];
    $product = wc_get_product($product_id);
    $get_price = $product->get_price();
    $new_price = $get_price / 2;
    $value['data']->set_price($new_price);
  }

}
This hook can be used to set the price directly to the cart. Hope this may help