What measures can be taken in PHP to prevent unauthorized users from accessing website content through viewing page source?

To prevent unauthorized users from accessing website content through viewing page source, you can implement server-side validation and authentication checks in your PHP code. This can include verifying user credentials, session management, and permission checks before serving sensitive content. 

session_start();

// Check if user is logged in
if(!isset($_SESSION['user_id'])) {
    // Redirect to login page or show unauthorized message
    header("Location: login.php");
    exit();
}

// Additional permission check if needed
if($_SESSION['role'] !== 'admin') {
    // Redirect to unauthorized page
    header("Location: unauthorized.php");
    exit();
}

// Proceed to serve sensitive content
echo "Welcome, authorized user!";

Keywords

PHP session management access control authentication encryption

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