What is the concept of normalization in database design and how does it apply to PHP programming?

Normalization in database design is the process of organizing data in a database to reduce redundancy and improve data integrity. In PHP programming, normalization helps in structuring the database tables efficiently, which in turn simplifies querying and updating data. 

// Example PHP code snippet demonstrating normalization in database design

// Create a connection to the database
$connection = new mysqli('localhost', 'username', 'password', 'database');

// Define a function to insert data into a normalized table
function insertData($connection, $name, $email) {
    $stmt = $connection->prepare("INSERT INTO users (name, email) VALUES (?, ?)");
    $stmt->bind_param("ss", $name, $email);
    $stmt->execute();
}

// Define a function to retrieve data from a normalized table
function getUsers($connection) {
    $result = $connection->query("SELECT * FROM users");
    $users = array();
    while ($row = $result->fetch_assoc()) {
        $users[] = $row;
    }
    return $users;
}

// Call the insertData function to insert data into the users table
insertData($connection, 'John Doe', 'john.doe@example.com');

// Call the getUsers function to retrieve all users from the users table
$users = getUsers($connection);

// Close the database connection
$connection->close();

Keywords

Normalization database design PHP programming relational databases data integrity

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