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E Commerce Lab Practicals

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60 views17 pages

E Commerce Lab Practicals

Uploaded by

Madhu
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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1. Home page design of web site code?

<!DOCTYPE html>

<html lang="en">

<head>

<meta charset="UTF-8">

<meta name="viewport" content="width=device-width, initial-scale=1.0">

<title>My Website</title>

<link rel="stylesheet" href="styles.css">

</head>

<body>

<header>

<h1>Welcome to My Website</h1>

<nav>

<ul>

<li><a href="#home">Home</a></li>

<li><a href="#about">About</a></li>

<li><a href="#services">Services</a></li>

<li><a href="#contact">Contact</a></li>

</ul>

</nav>

</header>

<main>

<section id="home">

<h2>Home Section</h2>

<p>This is the home section of the website. Welcome!</p>


</section>

<section id="about">

<h2>About Us</h2>

<p>Learn more about us here.</p>

</section>

<section id="services">

<h2>Our Services</h2>

<p>Details about services offered.</p>

</section>

<section id="contact">

<h2>Contact Us</h2>

<p>Get in touch with us!</p>

</section>

</main>

<footer>

<p>&copy; 2024 My Website. All rights reserved.</p>

</footer>

</body>

</html>

2.Validation using PHP code?


1. Basic Form Validation

Here's a simple example of how to validate a form with PHP:

<?php

// Initialize variables to store error messages

$nameErr = $emailErr = "";


$name = $email = "";

// Process the form when it's submitted

if ($_SERVER["REQUEST_METHOD"] == "POST") {

// Validate Name

if (empty($_POST["name"])) {

$nameErr = "Name is required";

} else {

$name = sanitize_input($_POST["name"]);

if (!preg_match("/^[a-zA-Z-' ]*$/", $name)) {

$nameErr = "Only letters and white space allowed";

// Validate Email

if (empty($_POST["email"])) {

$emailErr = "Email is required";

} else {

$email = sanitize_input($_POST["email"]);

if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {

$emailErr = "Invalid email format";

// Function to sanitize user input

function sanitize_input($data) {
return htmlspecialchars(stripslashes(trim($data)));

?>

<!DOCTYPE html>

<html>

<head>

<title>Form Validation Example</title>

</head>

<body>

<h2>PHP Form Validation Example</h2>

<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">

Name: <input type="text" name="name">

<span style="color: red;"><?php echo $nameErr;?></span>

<br><br>

Email: <input type="text" name="email">

<span style="color: red;"><?php echo $emailErr;?></span>

<br><br>

<input type="submit" name="submit" value="Submit">

</form>

</body>

</html>

2. Validating a Password

You can also implement password validation to ensure that users create strong passwords:
<?php

$passwordErr = "";

$password = "";

if ($_SERVER["REQUEST_METHOD"] == "POST") {

if (empty($_POST["password"])) {

$passwordErr = "Password is required";

} else {

$password = sanitize_input($_POST["password"]);

if (strlen($password) < 8 || !preg_match("/[A-Za-z]/", $password) || !preg_match("/[0-9]/",


$password)) {

$passwordErr = "Password must be at least 8 characters long and include letters and
numbers";

function sanitize_input($data) {

return htmlspecialchars(stripslashes(trim($data)));

?>

<!-- Add to your form -->

Password: <input type="password" name="password">

<span style="color: red;"><?php echo $passwordErr;?></span>

<br><br>

3.implement catalog design code?


<?php

// Sample data for the catalog

$products = [

'id' => 1,

'name' => 'Product 1',

'description' => 'This is a great product.',

'price' => 19.99,

'image' => 'https://via.placeholder.com/150'

],

'id' => 2,

'name' => 'Product 2',

'description' => 'This is another great product.',

'price' => 29.99,

'image' => 'https://via.placeholder.com/150'

],

'id' => 3,

'name' => 'Product 3',

'description' => 'This is yet another great product.',

'price' => 39.99,

'image' => 'https://via.placeholder.com/150'

];

?>
<!DOCTYPE html>

<html lang="en">

<head>

<meta charset="UTF-8">

<meta name="viewport" content="width=device-width, initial-scale=1.0">

<link rel="stylesheet" href="style.css">

<title>Product Catalog</title>

</head>

<body>

<div class="container">

<h1>Product Catalog</h1>

<div class="catalog">

<?php foreach ($products as $product): ?>

<div class="product">

<img src="<?php echo $product['image']; ?>" alt="<?php echo $product['name']; ?>">

<h2><?php echo $product['name']; ?></h2>

<p><?php echo $product['description']; ?></p>

<p class="price">$<?php echo number_format($product['price'], 2); ?></p>

<button>Add to Cart</button>

</div>

<?php endforeach; ?>

</div>

</div>
</body>

</html>

4. Implement access control mechanism(eg:user name and password)?


Here’s a complete implementation of a simple access control mechanism in PHP using username
and password authentication. This setup includes a login form, authentication logic, a protected
dashboard, and a logout option.

Directory Structure

1. login.php - The login form.

2. authenticate.php - The script to process login attempts.

3. dashboard.php - A protected page for logged-in users.

4. logout.php - Script to log out users

Step 1: Create login.php

<?php

session_start();

?>

<!DOCTYPE html>

<html lang="en">

<head>

<meta charset="UTF-8">

<meta name="viewport" content="width=device-width, initial-scale=1.0">

<link rel="stylesheet" href="style.css">

<title>Login</title>

</head>

<body>
<div class="container">

<h2>Login</h2>

<form action="authenticate.php" method="post">

<label for="username">Username:</label>

<input type="text" id="username" name="username" required>

<br><br>

<label for="password">Password:</label>

<input type="password" id="password" name="password" required>

<br><br>

<button type="submit">Login</button>

</form>

<?php

if (isset($_SESSION['error'])) {

echo "<p style='color: red;'>".$_SESSION['error']."</p>";

unset($_SESSION['error']);

?>

</div>

</body>

</html>

Step 2: Create authenticate.php

<?php

session_start();
// Sample user credentials (for demonstration only; use hashed passwords in production)

$valid_username = "admin";

$valid_password = "password123"; // Store hashed passwords in production

if ($_SERVER["REQUEST_METHOD"] == "POST") {

$username = $_POST['username'];

$password = $_POST['password'];

// Simple authentication check

if ($username === $valid_username && $password === $valid_password) {

$_SESSION['loggedin'] = true;

$_SESSION['username'] = $username;

header("Location: dashboard.php");

exit();

} else {

$_SESSION['error'] = "Invalid username or password.";

header("Location: login.php");

exit();

Step 3: Create dashboard.php

<?php

session_start();

// Check if the user is logged in

if (!isset($_SESSION['loggedin']) || $_SESSION['loggedin'] !== true) {


header("Location: login.php");

exit();

?>

<!DOCTYPE html>

<html lang="en">

<head>

<meta charset="UTF-8">

<meta name="viewport" content="width=device-width, initial-scale=1.0">

<link rel="stylesheet" href="style.css">

<title>Dashboard</title>

</head>

<body>

<div class="container">

<h2>Welcome, <?php echo $_SESSION['username']; ?>!</h2>

<p>This is a protected area accessible only to logged-in users.</p>

<a href="logout.php">Logout</a>

</div>

</body>

</html>

Step 4: Create logout.php:

<?php

session_start();
session_unset();

session_destroy();

header("Location: login.php");

exit();

5.case study on business model of online e commerce store code?


Creating a case study for an online e-commerce store involves several components, such as
business model description, key functionalities, technology stack, and a basic implementation of
features. Below, I’ll outline a simple case study and provide example code snippets that represent
the essential parts of an e-commerce platform.

Case Study: E-Commerce Store

Business Model

Business Model

1. Overview:

o An online platform where customers can browse and purchase a variety of products, such as
electronics, clothing, and home goods.

o Revenue generated through product sales, possibly supplemented by advertisements and affiliate
marketing.

2. Target Market:

o Tech-savvy individuals aged 18-45 who prefer shopping online for convenience and variety.

3. Value Proposition:

 Wide selection of products, competitive pricing, convenient shopping experience, and home
delivery.

 Revenue Streams:

 Product sales

 Shipping fees

 Affiliate marketing

 Advertisements
5.cost Structure:

o Website development and maintenance

o Inventory management

o Marketing and advertising

o Payment processing fees

Key Functionalities

1. User Registration and Login: Users can create accounts to track orders and manage personal
information.

2. Product Catalog: A display of products categorized for easy navigation.

3. Shopping Cart: Users can add products to their cart and proceed to checkout.

4. Order Management: Users can view their order history and order status.

5. Payment Integration: Allow users to make payments via credit/debit cards or third-party payment
gateways.

6. Admin Panel: For managing products, orders, and users.

Technology Stack

 Frontend: HTML, CSS, JavaScript (with frameworks like React or Vue.js)

 Backend: PHP (with a framework like Laravel) or Node.js

 Database: MySQL or MongoDB

 Payment Gateway: Stripe or PayPal

Example Code Snippets

Here are some example code snippets for key functionalities in PHP.

1. User Registration (register.php)

<?php

session_start();

require 'database.php'; // Assume a database connection file

if ($_SERVER["REQUEST_METHOD"] == "POST") {

$username = $_POST['username'];
$password = password_hash($_POST['password'], PASSWORD_DEFAULT); // Hash
password for security

// Insert user into the database

$stmt = $pdo->prepare("INSERT INTO users (username, password) VALUES (?, ?)");

if ($stmt->execute([$username, $password])) {

$_SESSION['success'] = "Registration successful!";

header("Location: login.php");

exit();

} else {

$_SESSION['error'] = "Registration failed!";

?>

<!DOCTYPE html>

<html lang="en">

<head>

<title>Register</title>

</head>

<body>

<form method="post" action="">

<input type="text" name="username" required placeholder="Username">

<input type="password" name="password" required placeholder="Password">

<button type="submit">Register</button>

</form>

</body>

</html>
<?php

session_start();

require 'database.php'; // Database connection

$stmt = $pdo->query("SELECT * FROM products");

$products = $stmt->fetchAll();

?>

2. Product Catalog (catalog.php)

<!DOCTYPE html>

<html lang="en">

<head>

<title>Product Catalog</title>

</head>

<body>

<h1>Product Catalog</h1>

<div class="product-list">

<?php foreach ($products as $product): ?>

<div class="product">

<h2><?php echo htmlspecialchars($product['name']); ?></h2>

<p><?php echo htmlspecialchars($product['description']); ?></p>

<p>Price: $<?php echo htmlspecialchars($product['price']); ?></p>

<form method="post" action="add_to_cart.php">

<input type="hidden" name="product_id" value="<?php echo $product['id']; ?>">

<button type="submit">Add to Cart</button>

</form>

</div>

<?php endforeach; ?>


</div>

</body>

</html>

3. Shopping Cart (cart.php)

<?php

session_start();

if (!isset($_SESSION['cart'])) {

$_SESSION['cart'] = [];

if ($_SERVER["REQUEST_METHOD"] == "POST") {

$product_id = $_POST['product_id'];

$_SESSION['cart'][] = $product_id; // Add product to cart

?>

<!DOCTYPE html>

<html lang="en">

<head>

<title>Your Cart</title>

</head>

<body>

<h1>Your Cart</h1>

<ul>

<?php foreach ($_SESSION['cart'] as $item): ?>

<li>Product ID: <?php echo htmlspecialchars($item); ?></li>

<?php endforeach; ?>

</ul>
<a href="checkout.php">Proceed to Checkout</a>

</body>

</html>

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