// Hook to restrict shipping based on product and destination postcode
add_filter('woocommerce_package_rates', 'restrict_shipping_by_product_and_postcode', 10, 2);

function restrict_shipping_by_product_and_postcode($rates, $package) {
    // Replace '123456' with the postcode of Lucknow
    $lucknow_postcode = '226022';
    
    // Check if the destination postcode is different from Lucknow
    if ($package['destination']['postcode'] != $lucknow_postcode) {
        // Check if there are restricted products in the cart
        $restricted_products = array(9651); // Replace with the IDs of the restricted products
        
        foreach ($package['contents'] as $item_id => $values) {
            $product_id = $values['product_id'];
            if (in_array($product_id, $restricted_products)) {
                // If any restricted product is found, unset all shipping methods
                $rates = array();
                break;
            }
        }
    }
    
    return $rates;
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