Description:
------------
This bug has already been reported and marked bogus here: http://bugs.php.net/bug.php?id=33279
but it is still reproducible in 5.1RC1 and recent snapshots

Reproduce code:
---------------
<?php
var_dump(array_count_values(array("012345")));
?>

Expected result:
----------------
array(1) {
  ["012345"]=>
  int(1)
}

Actual result:
--------------
array(1) {
  [12345]=>
  int(1)
}