1. Go to this page and download the library: Download itemvirtual/ecommerce-cart library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
EcommerceCart::getTotal();
EcommerceCart::getSubtotal();
// return taxes array
EcommerceCart::getTaxTotals();
// return total tax amount
EcommerceCart::getTaxTotalValue();
// Get total without shipping
EcommerceCart::getTotalWithoutShipping();