Adjusting shipping rates based on product shipping class

functions.php

add_filter( 'woocommerce_package_rates', 'adjustment_in_rates_of_product_with_shipping_class', 10, 2 );

function adjustment_in_rates_of_product_with_shipping_class( $available_shipping_methods, $package ) {
    
    // Shipping class IDs with extra costs.
    $shipping_class_and_price = array(
        13 => 10,
    );

    $shipping_services = array(
        'wf_shipping_ups:01',
        'wf_shipping_ups:02',
        'wf_shipping_ups:03',
        'wf_shipping_ups:07',
        'wf_shipping_ups:08',
        'wf_shipping_ups:11',
        'wf_shipping_ups:12',
        'wf_shipping_ups:13',
        'wf_shipping_ups:14',
        'wf_shipping_ups:59',
        'wf_shipping_ups:54',
        'wf_shipping_ups:65',
        'wf_shipping_ups:92',
        'wf_shipping_ups:93',
        'wf_shipping_ups:94',
    );

    $max_price = 0;
    foreach(WC()->cart->cart_contents as $key => $values) {
        foreach ($shipping_class_and_price as $class_id => $price) {
           if( $values['data']->get_shipping_class_id()==$class_id ){
                $max_price = $max_price > $price ? $max_price : $price;
           }
        }
    }

    if ($max_price > 0) {
        foreach ($available_shipping_methods as $key => $value) {
            if( in_array( $key, $shipping_services ) ){
                $available_shipping_methods[$key]->cost += $max_price;
            }
        }
    }
    return $available_shipping_methods;
}