Passing javascript variables to php?

Question

ok so im trying to get a javascript variable into a php script, this would be an example,

Answer 1

So there are 2 pages page1.php and page2.php

page2.php needs to pass JS variables to page1.php

We can do this by passing it as url variables from page2.php and get it in page1.php using $_GET[].

page2.php (send JS variable)

page1.php (receive JS variable)