How To Add Shopping Cart To Website In PHP



Adding a shopping cart to your website is a crucial step in creating a seamless and convenient shopping experience for your customers. Whether you run an e-commerce store or offer products and services that require online transactions, integrating a shopping cart system is essential.

In this article, we will guide you through the process of adding a shopping cart to your website using PHP. PHP (Hypertext Preprocessor) is a versatile and widely-used scripting language that is perfect for handling dynamic content, including shopping cart functionalities.

By following the steps outlined in this guide, you will be able to create a fully functional shopping cart system that allows users to select and purchase items, calculate the total price, and complete their orders. Whether you are a beginner or have some experience with PHP, this guide will help you implement a shopping cart on your website efficiently.

The process involves setting up a database to store product information, creating the shopping cart structure, displaying the products, adding items to the cart, updating the cart, removing items, calculating the total price, displaying the cart contents, and finally, allowing users to complete the checkout process.

By the end of this guide, you will have acquired the necessary skills and knowledge to confidently implement a shopping cart system on your website. So, let’s dive in and get started with the first step: setting up the database.


Step 1: Set Up the Database

Before we can start implementing the shopping cart functionality, we need to set up a database to store the product information and the user’s cart items. This will allow us to efficiently retrieve and manipulate the data as needed.

To begin, you will need to create a new database or use an existing one. You can use tools like PHPMyAdmin or MySQL Workbench to manage your database. Once you have access to your database, you can proceed with creating the necessary tables.

The first table we will create is the “products” table. This table will store information about the products available for purchase, such as the product ID, name, description, price, and any other relevant details. Each product will have a unique ID that will serve as its primary key.

Next, we need to create a table to hold the cart items. This table, called the “cart” table, will store information about the items that users add to their cart. It should include fields like the cart ID, user ID (if applicable), product ID, quantity, and any other necessary fields.

Make sure to define the appropriate relationships between the tables. For example, the “cart” table can have a foreign key reference to the “products” table’s product ID. This will ensure that each cart item is associated with a specific product.

Once you have created the necessary tables and defined the relationships, you can move on to the next step of creating the shopping cart structure.

Remember to regularly back up your database to prevent any data loss. This will allow you to restore your data in case of any unforeseen issues.

Now that we have set up the database, we can proceed with creating the shopping cart structure. This will allow us to display the products and provide users with the ability to add items to their cart. In the next step, we will explore how to create the shopping cart structure.


Step 2: Create the Shopping Cart Structure

Now that we have our database set up, we can focus on creating the necessary structure for the shopping cart system. This involves designing the user interface and implementing the functionality to display the products and allow users to add items to their cart.

To start, you will need to create the HTML and CSS files for the shopping cart page. This page will serve as the main interface where users can view the products and interact with the shopping cart.

Begin by creating a basic HTML structure for the shopping cart page. Include a header, a container for the products, and a sidebar or section where the cart contents can be displayed. You can use HTML tags such as `

`, `
`, and `

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