// Fixed warning and prepared next commit

controllers/front/SearchController.php

@@ -93,6 +93,8 @@ class SearchControllerCore extends FrontController
 			$this->p = abs((int)(Tools::getValue('p', 1)));
 			$query = Tools::replaceAccentedChars(urldecode($query));			
 			$search = Search::find($this->context->language->id, $query, $this->p, $this->n, $this->orderBy, $this->orderWay);
+			foreach ($search['result'] as &$product)
+				$product['link'] .= '&search_query='.urlencode($query).'&results='.(int)$search['total'];
 			Hook::exec('actionSearch', array('expr' => $query, 'total' => $search['total']));
 			$nbProducts = $search['total'];
 			$this->pagination($nbProducts);

modules/blockcategories/blockcategories.php

@@ -235,7 +235,7 @@ class BlockCategories extends Module
 				$resultIds[$row['id_category']] = &$row;
 			}
 
-			$blockCategTree = $this->getTree($resultParents, $resultIds, $maxdepth, (isset($category) ? $category->id : null));
+			$blockCategTree = $this->getTree($resultParents, $resultIds, $maxdepth, ($category ? $category->id : null));
 			$this->smarty->assign('blockCategTree', $blockCategTree);
 
 			if ($category)