Can sessions be easily manipulated by users in PHP?

Sessions in PHP can be manipulated by users if proper security measures are not in place. To prevent this, always validate and sanitize user input before storing it in session variables. Additionally, use session_regenerate_id() to generate a new session ID periodically to prevent session fixation attacks. 

// Validate and sanitize user input before storing in session
$_SESSION['user_id'] = filter_var($_POST['user_id'], FILTER_SANITIZE_NUMBER_INT);

// Regenerate session ID periodically
if (rand(1, 100) == 1) {
    session_regenerate_id();
}

Keywords

sessions manipulation security PHP user privacy

Related Questions