What are the implications of relying on cookies for user authentication in PHP applications?

Relying solely on cookies for user authentication in PHP applications can pose security risks as cookies can be easily manipulated or stolen. To enhance security, it is recommended to use a combination of cookies and server-side sessions for user authentication. 

// Implementing user authentication using cookies and server-side sessions

// Start a session
session_start();

// Set a session variable for user authentication
$_SESSION['authenticated'] = true;

// Set a cookie with a secure token for user identification
$token = bin2hex(random_bytes(16));
setcookie('auth_token', $token, time() + 3600, '/', '', true, true);

Keywords

cookies user authentication PHP applications security risks session hijacking

Related Questions