How can I add an additional set of discount rules to this code?

[liamhluk]

Hey Guys,  So I'm stuck on a particular line of PHP for woocommerce the code I have hear works for doing 2 levels of discount.

1 - The discount code in woocommerce coupon settings gives - 10% off for products in category named "10OFF" - Coupon settings are in the image below 

2. This code here then allows the same coupon to give 15% off off products in category named "15OFF"

3. What I can't seem to work out, is how to add another layer to this, where the same coupon will give 35% off products in a category named "35OFF"

I get the feeling this is something really super obvious to someone who knows more about PHP coding than myself! I've tried multiple IF statements, that breaks the whole thing. I'm confident Creating multiple Categories is the way forward. I just can't work out how to add the new categories to the code that doesn't suddenly break the whole thing again stopping all discounts being taken off each item.

Any advice would be hugely appreciated! I know the Code could be a lot neater in general, but I'm really new to PHP

Kind Regards to all

Liam

add_filter( 'woocommerce_coupon_get_discount_amount', 'alter_shop_coupon_data', 20, 5 );
function alter_shop_coupon_data( $round, $discounting_amount, $cart_item, $single, $coupon ){

//Settings//

    $coupon_codes = array('bigsavings');

    // Product categories at 15% 
    $product_category15 = array('15off'); // for 15% discount

    $second_percentage = 0.015; // 15 %

   // Code//

    if ( $coupon->is_type('percent') && in_array( $coupon->get_code(), $coupon_codes ) ) {
        if( has_term( $product_category15, 'product_cat', $cart_item['product_id'] ) ){
            $original_coupon_amount = (float) $coupon->get_amount();
            $discount = $original_coupon_amount * $second_percentage * $discounting_amount;
            $round = round( min( $discount, $discounting_amount ), wc_get_rounding_precision() );
        }
    }
    return $round;
}

 

Edited May 17, 2021 by liamhluk
Additional info on what I've tried already