PHP spl_autoload_register() doesn't find function

Question

This code:

<?php
namespace designblob;

function autoloader($class){
        include "wrappers/databaseWrapper.php";
}

spl_autoload_register('autoloader');    
?>

throws this error:

Fatal error: Uncaught exception 'LogicException' with message 'Function 'autoloader' not found (function 'autoloader' not found or invalid function name)' in /var/www/xxx/library/autoloader.php:8 Stack trace: #0 /var/www/xxx/library/autoloader.php(8): spl_autoload_register('autoloader') #1 /var/www/xxx/library/debug.php(19): require_once('/var/www/xxx...') #2 {main} thrown in /var/www/xxxm/library/autoloader.php on line 8

Why doesn't it work?

Answer 1

spl_autoload_register('designblob\autoloader');