Variable Scope

Hi,

Can someone confirm that variables passed to a top view are available to a lower-down view?

e.g.

PHP Code:

$this->load->view('view1', $view1array);
$this->load->view('view2', $view2array); 


If I have a variable $test1 in $view1array, it will be available in view2?

If this is the case, is there a way/method to isolate the variables in $view1array from view2?