Description:
------------
Other example:

This should show that there is an error in file xx.php

Put the files in the same directory and run test.php
Then change to E_ALL and see the correct error alert.

Reproduce code:
---------------
File test.php
-----------------------
error_reporting(E_STRICT);

function autoload($class_name) {
    require_once Dirname(__FILE__).'/'.$class_name . '.php';
}
spl_autoload_register('autoload');

$obj  = new xx();

File xx.php
--------------------------
class xx {
	abstract function yy();
}

class zz extends zz {

}

Expected result:
----------------
Change to error_reporting to E_ALL and see the correct error alert.

Actual result:
--------------
Empty page.