Description:
------------
Documentation states that the __call() method will be passed two arguments, the first being the name of the called method, the second being *an array* of the arguments. Thus, when daisy-chaining the __call() method via parent::__call() or equivalent, the second __call() should have an array with a single element which is an array of the arguments passed to the first __call().

The actual behavior is more desirable than the documented behavior, and this is probably "not a bug". That said, I don't want to rewrite my code if a future version of PHP changes the behavior without warning.


Reproduce code:
---------------
class a {
        function __call($m, $a) {
                echo "--- a::$m\n";
                echo "call($m) ";
                var_dump($a);
        }
}

class b extends a {
        function __call($m, $a) {
                echo "--- b::$m\n";
                if($m == "special") {
                        echo "special override ";
                        var_dump($a);
                } else parent::__call($m, $a);
        }
}

$ca = new a();
$cb = new b();
$ca->test();
$ca->test("one", "two");
$cb->special();
$cb->test();
$cb->test("one", "two");


Expected result:
----------------
A literal interpretation of the documentation says the var_dump ultimately executed by the last call to $cb->test() "should" display something like:

array(1) {
  [0]=> array(2) {
      [0]=>
      string(3) "one"
      [1]=>
      string(3) "two"
  }
}


Actual result:
--------------
array(2) {
  [0]=>
  string(3) "one"
  [1]=>
  string(3) "two"
}