What security considerations should be taken into account when implementing a login system in PHP to prevent unauthorized access to member pages?

To prevent unauthorized access to member pages in a PHP login system, it is important to implement proper security measures such as using secure password hashing, validating user input, and implementing session management to control access. 

// Start a session
session_start();

// Check if user is logged in
if (!isset($_SESSION['user_id'])) {
    header('Location: login.php');
    exit();
}

// Your member page content here

Keywords

SQL injection password hashing session management CSRF protection secure cookie handling

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