Description:
------------
I'm trying to use an old way of sending arrays between pages in PHP with the new filter extension. With normal superglobals if you append '[]' after a parameter's name, you get an array with one element for each aparence.

Eg,
http://localhost/foo.php?a[]=1&a[]=2
results in an array with two positions in $_GET['a'].

I'm not being able to emulate this behavior with the filter extension.


Reproduce code:
---------------
<pre>
<?
var_dump($_GET['a']);
var_dump(filter_input(INPUT_GET, 'a', FILTER_DEFAULT))
?>
</pre>

Expected result:
----------------
array(2) {
  [0]=>
  string(1) "1"
  [1]=>
  string(1) "2"
}
array(2) {
  [0]=>
  string(1) "1"
  [1]=>
  string(1) "2"
}

Actual result:
--------------
array(2) {
  [0]=>
  string(1) "1"
  [1]=>
  string(1) "2"
}
bool(false)