What are the potential security risks of using htaccess for user authentication in PHP?

One potential security risk of using htaccess for user authentication in PHP is that the credentials are stored in a plain text file on the server, making them vulnerable to unauthorized access. To mitigate this risk, it is recommended to use a more secure method of user authentication, such as storing hashed passwords in a database.

// Example of storing hashed passwords in a database for user authentication

// Connect to the database
$pdo = new PDO('mysql:host=localhost;dbname=mydatabase', 'username', 'password');

// Retrieve user credentials from the database
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');
$stmt->execute(['username' => $_SERVER['PHP_AUTH_USER']]);
$user = $stmt->fetch();

// Verify the password
if ($user && password_verify($_SERVER['PHP_AUTH_PW'], $user['password'])) {
    // User authentication successful
    echo 'Welcome, ' . $_SERVER['PHP_AUTH_USER'] . '!';
} else {
    // User authentication failed
    header('HTTP/1.1 401 Unauthorized');
    echo 'Access denied.';
}