Description:
------------
I've tried to create an __autoload() function which would throw an exception if it can't load the class name from a file depending on the classname i request with the php code.

I couldnt catch the exception with a try/catch clause, because it always failed (see expected/actual result below).

My workaround was to add this after the first include_once statement inside the __autoload:

if (!class_exists($classname)) {
  eval("class ".$classname." { }");
}

Afterwards instead of a try/catch clause i used a method_exist call to see if a general function was defined (one that i require to have).

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

function __autoload($classname) {
        if (substr($classname,0,7)=="object_") {
                @include_once("include/object.".substr($classname,7).".php");
                return;
        }
        @include_once("class.".$classname.".php");
}

try {
  $object = new object_wtf("hello");
} catch (Exception $e) { echo "__autoload failed "; var_dump($object); }


Expected result:
----------------
Output: __autoload failed NULL

Actual result:
--------------
Fatal error: Class 'object_wtf' not found in /root/monotek/mono/commands/test.php on line 15