Autoloader pseudocode

autoloader.php

final class Loader{
  // spl_autoload_register([$this, 'loadClass'], true, $prepend);
  public function findFile($class){
  //...
          /* autoload core without namespace classes */  
          if (is_file($location = ROOTPATH . 'application/core/' . $class . EXT)) {  
              return $location;  
          }  
          /* autoload library classes */ 
          if (is_file($location = ROOTPATH . 'application/libraries/' . $class . EXT)) { 
              return $location;  
          }  
          if (is_file($location = ROOTPATH . 'application/libraries/' . strtolower($class) . EXT)) { 
              return $location;  
          }
  //... even more dragons..
}