Deep in my program I have such fragment:

list($newkey) = $db -> getrow();
$newkey++;
$data[$key] = $newkey;

And $newkey++ doesn't work!
If i change 

$newkey++;

to 

$newkey = $newkey + 1;

everything is fine - newkey gets incremented. But It doesn't with ++ operator.

Don't have time now to shrink the code to the smallest one that produce this behaviour and to upgarde to 4.0.1 - I will do it in one or two weeks.

regards
?ukasz Michalski.