Дубли категорий производителей - SEO

SEFLink('index.php?option=com_jshopping&controller=manufacturer&task=view&manufacturer_id='.$manufacturer_id, 1);

<?php $document = JFactory::getDocument(); $docstart = JRequest::getInt('start',0); $docroute = rtrim(JURI::root(), '/').JRoute::_('index.php?option=com_jshopping&controller=manufacturer&task=view&manufacturer_id=' . $this->manufacturer->manufacturer_id . '');

 if($docstart > 0) { $document->addHeadLink($docroute, 'canonical', 'rel', ''); }?>

<?php $document = JFactory::getDocument(); $docstart = JRequest::getInt('start',0); $docroute = rtrim(JURI::root(), '/').JRoute::_('index.php?option=com_jshopping&controller=manufacturer&task=view&manufacturer_id=' . $this->manufacturer->manufacturer_id . '');
$url=$_SERVER['REQUEST_URI'];
if (strstr($url, 'brendy')) {
} else {
    header(“HTTP/1.1 301 Moved Permanently”);
    header('Location:'.$docroute);
    exit();
};
 if($docstart > 0) { $document->addHeadLink($docroute, 'canonical', 'rel', ''); }?>

“HTTP/1.1 301 Moved Permanently”

JFactory::getApplication()->redirect($docroute, 301);