Does PHP free local variables immediately after the function ends?

Question

The code illustrates better what I\'m asking:

function foo(){

  $var = get_huge_amount_of_data();

  return $var[0];
}


$s = foo();

// is memory freed her         


        

Answer 1

Yes it is because $var is declare on stack and get clear as soon it goes out of scope

You can refer this https://stackoverflow.com/a/5971224/307157