A shopping cart is an important part of every eCommerce project. It helps the user to select multiple items for purchase and view total price before submitting the order. If you want to build a simple PHP shopping cart from scratch, this step-by-step tutorial will help you a lot. In this tutorial, we’ll provide the complete guide and script to creating a simple shopping cart in PHP using sessions and MySQL. This tutorial is designed in a way that can be implemented easily in PHP project and made easy to understand the shopping cart concept. In our example script, we’ll use PHP session to store the products information in the cart. Once the order is submitted by the user, the products information would be inserted into the database using PHP and MySQL. Before you begin, take a look at the files structure of PHP shopping cart script. Create Database Tables Minimum four database tables ( customers , products , orders , and order_items ) are needed to create a simple session-based shopping...