How can tutorials and resources on PHP Sessions help in improving the security and functionality of a custom CMS or website?

PHP Sessions can help improve the security and functionality of a custom CMS or website by providing a way to securely store and manage user data across multiple pages. By using PHP Sessions, you can prevent unauthorized access to sensitive information and ensure that user data is kept safe during a user's session on the website.

// Start a PHP session
session_start();

// Store user data in the session
$_SESSION['username'] = 'john_doe';

// Retrieve user data from the session
$username = $_SESSION['username'];

// Destroy the session when the user logs out
session_destroy();