$conn = mysqli_connect($host, $user, $pass);
$db = mysqli_select_db($conn, $db);

	$username = $_POST['username'];
	$password = $_POST['password'];

	$query = mysqli_query($conn, "SELECT * FROM users WHERE username='$username' AND password='$password'");

	$rows = mysqli_num_rows($query);
	if ($rows == 1){
		echo "Welcome";
		}
		else
		{
			echo "oke";
		}
		mysqli_close($conn);
	}