Description:
------------
I sent a couple messages to the Internals mailing list over the last few weeks with a better fix for Bug #41283 (http://news.php.net/php.internals/29315), but they seem to have been ignored, so I'm opening this bug (and I discovered wrong changes in the 4.4 branch that should be fixed).

As seen with the "Reproduce code," all branches are mishandling those types of numeric keys. They worked fine up to 4.4.0, I believe, until Bug #34068 was "fixed" there (it actually never existed in 4.x as there wasn't a change of the internal functions there). (That bogus 4.x change then caused Bug #35410, #41283 (not fixed in 4.x), etc.)

Just trying to prevent more future problems like Bug #38464 I created for array_count_values() (caused by the same internal change), where individual bugs get reported/fixed, instead of fixing the root cause. :-)

Here are patches to fix these bugs in each branch:
http://realplain.com/php/wddx_num_key.diff
http://realplain.com/php/wddx_num_key_5_2.diff
http://realplain.com/php/wddx_num_key_4_4.diff

Reproduce code:
---------------
<?php

$data = array('01' => 'Zero', '+1' => 'Plus sign', ' 1' => 'Space');
var_dump(wddx_deserialize(wddx_serialize_vars('data')));

Expected result:
----------------
array(3) {
  ["01"]=>
  string(4) "Zero"
  ["+1"]=>
  string(9) "Plus sign"
  [" 1"]=>
  string(5) "Space"
}

Actual result:
--------------
array(1) {
  ["data"]=>
  array(1) {
    [1]=>
    string(5) "Space"
  }
}