if(isset($_POST['login'])){ $user = $_POST['username']; $pass = $_POST['password']; $data = mysqli_query($conn, "SELECT * FROM admin WHERE username='$user' AND password='$pass'"); $cek = mysqli_num_rows($data); if($cek > 0){ $_SESSION['login'] = true; header("location:admin.php"); } else { echo "Login gagal"; } } ?>