Shoes E-commerce Website In PHP With Source Code

This guide walks you through building a Shoes E-Commerce Website in PHP and MySQL from the ground up, an online shoe store project complete with source code. Instead of only downloading it, you will understand how each part works: the database schema, the product catalog, the shopping cart, the checkout and orders, and the admin panel. That understanding is what turns a downloaded project into something you can explain in a viva, extend for an assignment, or showcase in your portfolio.

1. What a shoes e-commerce website includes

An e-commerce website is an online store: it shows products, lets customers add them to a cart, and turns that cart into an order at checkout. A shoes e-commerce site is the same pattern applied to a shoe catalog, with products that have details like size, brand, price, and an image. Building one in PHP and MySQL is one of the most valuable student projects because it brings together every core skill, database design, CRUD, sessions, relationships between tables, authentication, and the multi-step cart-to-order flow, in a context everyone immediately understands.

The version in this guide includes a product catalog with images, user registration and login, a session-based shopping cart, a checkout that creates an order, order history, and an admin panel to manage products and view orders. That is enough to be a complete, demonstrable project while staying clear enough to fully understand.

2. The database schema

The schema is the backbone of the project, so it is the right place to start. Reading the tables tells you what the store actually models. The shoes e-commerce site uses these core tables.

The relationships are the key idea. A user places many orders, an order contains many products, and the order_items table sits between orders and products to record exactly what was bought and at what price. This is the standard e-commerce structure: an order is the header (who, when, total) and order_items are the line items (which products, how many). Understanding this one diagram is understanding most of the project, because every screen reads or writes one of these tables.

3. How the product catalog works

The catalog is a SELECT from the products table, displayed as a grid of shoes with their image, name, brand, price, and an “add to cart” button. The admin manages this catalog with CRUD: adding a product is an INSERT, and editing or removing one is an UPDATE or DELETE. Adding a product, with its values coming from a form, uses a prepared statement:

// add a product to the catalog (simplified)
$stmt = $conn->prepare(
  "INSERT INTO products (name, brand, size, price, image, stock)
   VALUES (?, ?, ?, ?, ?, ?)"
);
$stmt->bind_param("sssdsi", $name, $brand, $size, $price, $image, $stock);
$stmt->execute();

The prepared statement with bind_param, rather than dropping form values into the SQL string, is how you prevent SQL injection, a core security habit in PHP and a detail that marks a project you understand rather than one you copied. Product images are typically stored as a filename in the database, with the actual file uploaded to an images folder.

4. How the shopping cart works

The cart is where e-commerce gets interesting, because it needs to remember items as the user moves between pages. This is done with a PHP session: the cart lives in $_SESSION as an array of product IDs and quantities, so it persists across the visit without needing to be saved to the database until checkout.

// add an item to the session cart
session_start();
if (!isset($_SESSION['cart'])) $_SESSION['cart'] = [];
$id = $_POST['product_id'];
$_SESSION['cart'][$id] = ($_SESSION['cart'][$id] ?? 0) + 1;

Using the product ID as the array key means adding the same shoe twice simply increases its quantity rather than creating a duplicate line. The cart page then loops over this array, looks up each product’s details, and shows the running total. Understanding that the cart is just a session array, not a database table, is a common “aha” moment, and explaining it well shows you grasp how PHP maintains state across requests.

5. How checkout creates an order

Checkout is the moment the temporary session cart becomes a permanent record. The code creates one row in orders for the purchase, then one row in order_items for each product in the cart, copying the current price into each line. Because two related inserts must both succeed or both fail, this is the natural place to mention transactions, which group several queries so the order is never left half-created.

// turn the cart into an order (core idea)
// 1. insert the order header, get its new id
INSERT INTO orders (user_id, total, order_date, status)
VALUES (?, ?, NOW(), 'pending')
// 2. for each cart item, insert a line into order_items
INSERT INTO order_items (order_id, product_id, quantity, price)
VALUES (?, ?, ?, ?)
// 3. clear the session cart

After the order is saved, the session cart is emptied and the user sees a confirmation. This cart-to-order flow is the heart of any e-commerce project, and being able to walk an examiner through it, session cart, order header, line items, then clear, demonstrates that you understand the full lifecycle of a purchase, not just isolated pieces.

6. The admin panel and login

The store sits behind authentication, with the role column separating customers from the admin. The admin panel lets staff add and edit products, view all orders, and update an order’s status from pending to shipped. The login verifies a hashed password with password_verify and stores a session that protected pages check. The dashboard is a set of small queries you now understand: total products, total orders, revenue, and low-stock items. Knowing the schema, you can add any new figure yourself just by writing its query.

7. Setup: running it on your machine

To run the project locally you need a PHP environment with MySQL, most commonly XAMPP on Windows or its equivalent on Mac and Linux. The steps are:

1. Install XAMPP and start the Apache and MySQL services.
2. Copy the project folder into the htdocs directory.
3. Open phpMyAdmin, create a database, and import the included .sql file to create the tables.
4. Open the project’s config file and set the database name, user, and password to match your setup.
5. Visit the project in your browser through localhost and log in with the default admin credentials in the guide.

8. How to extend it for your own project

Assignments and portfolios reward what you add, not what you copied. Because you now understand the schema and the cart-to-order flow, here are natural extensions you can build and explain:

• Product search and filters: let users filter shoes by brand, size, or price range with a WHERE clause.
• Stock control: reduce a product’s stock when an order is placed, and hide or flag out-of-stock items.
• Order tracking for users: a page where customers see their past orders and current status, reusing a JOIN across orders and order_items.
• Product ratings and reviews: a reviews table linked to products and users, with an average rating shown on each product.
• Wishlist: let logged-in users save shoes for later, a simple table linking user and product IDs.

Each of these is a small, well-scoped addition that demonstrates real understanding, exactly what turns a standard download into a project you can defend and be proud of.

Frequently asked questions