Variable Variables Pointing to Arrays or Nested Objects

Question

Is it possible to create a variable variable pointing to an array or to nested objects? The php docs specifically say you cannot point to SuperGlobals but its unclear (to me

Answer 1

In echo $arrayTest[1]; the vars name is $arrayTest with an array index of 1, and not $arrayTest[1]. The brackets are PHP "keywords". Same with the method notation and the -> operator. So you'll need to split up.

// bla[1]
$arr = 'bla';
$idx = 1;
echo $arr[$idx];

// foo->bar
$obj = 'foo';
$method = 'bar';
echo $obj->$method;

What you want to do sounds more like evaluating PHP code (eval()). But remember: eval is evil. ;-)