prepare("SELECT * FROM users WHERE username = ?"); $stmt->execute([$_POST['username']]); $user = $stmt->fetch(); if ($user && password_verify($_POST['password'], $user['password'])) { $_SESSION['user_id'] = $user['id']; error_log('User-ID nach Login: ' . $_SESSION['user_id']); header('Location: dashboard.php'); exit; } else { $error = "Benutzername oder Passwort falsch!"; } } ?> FSCash - Login