$now = new DateTime; it's strange.

$now = new DateTime; wrong, Strange.
When using namespaces, the following statement shows that it was not found:
$now = new DateTime; error

---
Class ' user\action\datetime ' not found
------Solution--------------------
DateTime is a PHP built-in class that is not affiliated to any namespace
If you need to use a \ declaration in a namespace

 
 namespace User\action;
$now   = new \datetime;
Print_r ($now);

DateTime Object
(
[Date] = 2014-05-11 15:43:30
[Timezone_type] = 3
[TimeZone] = Asia/shanghai
)

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