/**
  * Disable Kohana PHP error handling.
  *
  * @return  void
  */
 public static function disable()
 {
     if (Kohana_PHP_Exception::$enabled) {
         restore_error_handler();
         Event::clear('system.shutdown', array('Kohana_PHP_Exception', 'shutdown_handler'));
         Kohana_PHP_Exception::$enabled = FALSE;
     }
 }