Description:
------------
As "karsten" already mentioned (http://de.php.net/manual/en/function.date-create.php#77871) date_create() never returns FALSE like it is supposed to, even when it is handed complete garbage. It seems to be something like "if the string starts with a letter, treat it as a timezone -> this is not a timezone *dies*)

edit:
also, this bug might be related: http://bugs.php.net/bug.php?id=40340

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

$date = date_create('asdfasdf');

if ($date instanceof DateTime {
  echo "this is wrong, should be bool";
}

?>

Expected result:
----------------
nothing (i would expect date_create() to handle the error in the timezone function and return FALSE)

Actual result:
--------------
Warning: date_create(): Failed to parse time string (asdfasdf) at position 0 (a): The timezone could not be found in the database in /home/mcontento/datetimebug.php on line 3