Description:
------------
When trying to use call_user_func_array() to call a parent method php calls the current class method and therefore goes into a loop.

Reproduce code:
---------------
<?php
class a {
    public function xyz () {
        $args = func_get_args();
        print("\n\na:\n");
        var_export($args);
    }
}
class b extends a {
    public function xyz () {
        $args = func_get_args();
        print("\n\nb:\n");
        var_export($args);
        call_user_func_array(array('parent', 'xyz'), $args);   
    }   
}
$b = new b();
$b->xyz('zero', 'one', 'two', 'three', 'four');
?>

Expected result:
----------------
b:
array (
  0 => 'zero',
  1 => 'one',
  2 => 'two',
  3 => 'three',
  4 => 'four',
)

a:
array (
  0 => 'zero',
  1 => 'one',
  2 => 'two',
  3 => 'three',
  4 => 'four',
)

Actual result:
--------------
b:
array (
  0 => 'zero',
  1 => 'one',
  2 => 'two',
  3 => 'three',
  4 => 'four',
)

b:
array (
  0 => 'zero',
  1 => 'one',
  2 => 'two',
  3 => 'three',
  4 => 'four',
)

b:
array (
  0 => 'zero',
  1 => 'one',
  2 => 'two',
  3 => 'three',
  4 => 'four',
)

... [Inf loop]