NDF ACCESS

Username is empty.
'; } else { $servername = "db"; $username = "ctf"; $password_db = "39gknzLD"; $dbname = "app"; $conn = new mysqli($servername, $username, $password_db, $dbname); $sql = "SELECT username, pass FROM users WHERE username='$name' AND pass='$password'"; $result = $conn->query($sql); if ($result->num_rows > 0) { session_regenerate_id(true); $_SESSION['username'] = $name; header('Location: /admin/securenotes.php'); exit(); } else { echo '
Wrong username or password!
'; } } } ?>