Creating an e-commerce website that sells Samsung phones, speakers, and earphones would involve several steps, including designing the website, setting up a database to store information about products, and creating the functionality to allow users to browse and purchase products.

Here is an example of what the code for such a website could look like, using the PHP programming language and the MySQL database management system:

Samsung Products

';
echo '

';
while ($row = mysqli_fetch_assoc($result)) {
echo '
• ' . $row['name'] . ' - $' . $row['price'] . '

';
}
echo '

';

// Handle form submission for purchasing a product
if (isset($_POST['purchase'])) {
$product_id = $_POST['product_id'];
$quantity = $_POST['quantity'];

// Retrieve the product information from the database
$query = "SELECT * FROM products WHERE id = $product_id";
$result = mysqli_query($db, $query);
$product = mysqli_fetch_assoc($result);

// Calculate the total cost of the purchase
$total_cost = $product['price'] * $quantity;

// Insert the purchase into the database
$query = "INSERT INTO purchases (product_id, quantity, total_cost) VALUES ($product_id, $quantity, $total_cost)";
mysqli_query($db, $query);

// Redirect the user to a confirmation page
header('Location: purchase_confirmation.php');
exit;
}

// Display the purchase form
echo '

Make a Purchase

';
echo '

';

// Close the database connection
mysqli_close($db);

?>

This code is a simple example of how an e-commerce website could be implemented, it's not a full-featured website and it's missing many important components like authentication, security, payment processing, among others. It's only meant to illustrate the basic functionality of an e-commerce website.