PHP MySQL - Stilson.net

www.it-ebooks.infoCHAPTER 18 • SESSION HANDLERS// Has a session been initiated previously?if (! isset($_SESSION['username'])) {// If no previous session, has the user submitted the form?if (isset($_POST['username'])){$db = new mysqli("localhost", "webuser", "secret", "corporate");?");$stmt = $db->prepare("SELECT first_name FROM users WHERE username = ? and password =?>$stmt->bind_param('ss', $_POST['username'], $_POST['password]);$stmt->execute();$stmt->store_result();if ($stmt->num_rows == 1){}$stmt->bind_result($firstName);$stmt->fetch();$_SESSION['first_name'] = $firstName;header("Location: http://www.example.com/");} else {require_once('login.html');}} else {echo "You are already logged into the site.";}At a time when users are inundated with the need to remember usernames and passwords for everyimaginable type of online service from checking e-mail to library book renewal to reviewing a bankaccount, providing an automatic login feature when the circumstances permit will surely be welcomedby your users.Generating a Recently Viewed Document IndexHow many times have you returned to a web site, wondering where exactly to find that great PHPtutorial that you forgot to bookmark? Wouldn’t it be nice if the Web site were able to remember which379