exception throw from __autoload could not be catched on php 5.3.1

Hi php-dev pros, I got an issue about catching exception throw from __autoload on php 5.3.1. The manual state that exception throw from __autoload could be catched with try.. catch statement same as the normal flow. But I'can archive that even I have copied the same sample code from the manual. Here are the code segment. [[[ function __autoload($name) { echo "Want to load $name.\n"; throw new Exception("Unable to load $name."); } try { $obj = new NonLoadableClass(); } catch (Exception $e) { echo $e->getMessage(), "\n"; } ]]] Are there anyone experienced this or not ? Thanks in advance ! Regards, Eric,