$error_message = $generic_error; echo '<div class="alert alert-danger"><strong>Error:</strong>' . $error_message . '</div>'; } } else { $error_message = $generic_error; echo '<div class="alert alert-danger"><strong>Error:</strong>' . $error_message . '</div>'; } } else { $error_message = 'Please enter your username or password'; echo '<div class="alert alert-danger"><strong>Error:</strong>' . $error_message . '</div>'; } } } session_start(); $error_message = ''; $generic_error = 'Invalid username or password'; if (isset($_POST['submit'])) { if (empty($_POST['username']) || empty($_POST['password'])) { $error_message = $generic_error; } else { $username = $_POST['username']; $password = $_POST['password']; // Attempt to implement some security by removing backslashes $username = stripslashes($username); $password = stripslashes($password); $login = new UserLogin(); $login->verifyUser($username, $password); } } else { $error_message = $generic_error; }