Is comparing computer names a reliable method for preventing session key theft in PHP applications?

Comparing computer names is not a reliable method for preventing session key theft in PHP applications as computer names can be easily spoofed or manipulated. A more secure approach would be to use secure session handling techniques such as using HTTPS, setting secure session cookies, and implementing proper input validation and data sanitization. 

// Implementing secure session handling
session_start();

// Set session cookie parameters
session_set_cookie_params([
    'lifetime' => 0,
    'path' => '/',
    'domain' => 'example.com',
    'secure' => true,
    'httponly' => true,
    'samesite' => 'Strict'
]);

// Regenerate session ID to prevent session fixation attacks
session_regenerate_id(true);

// Validate and sanitize input data
$username = filter_input(INPUT_POST, 'username', FILTER_SANITIZE_STRING);
$password = filter_input(INPUT_POST, 'password', FILTER_SANITIZE_STRING);

// Perform authentication and set session variables
if ($username === 'admin' && $password === 'password') {
    $_SESSION['authenticated'] = true;
    $_SESSION['username'] = $username;
} else {
    $_SESSION['authenticated'] = false;
}

// Redirect to appropriate page
if ($_SESSION['authenticated']) {
    header('Location: dashboard.php');
} else {
    header('Location: login.php');
}

Keywords

PHP session key theft computer names security comparison.

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