From 8e8ec6ec172b30adc38adf326ac01f7399e5d7ab Mon Sep 17 00:00:00 2001
From: Nick Fenwick <neek@nickfenwick.com>
Date: Mon, 6 Nov 2023 09:06:10 +0700
Subject: [PATCH] Make sort headings rel=nofollow, for SEO.

Avoids unnecessary crawling of results pages by not following links that
only change the sort order of results, not the actual content.
---
 includes/functions/functions_general.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/includes/functions/functions_general.php b/includes/functions/functions_general.php
index 94f21e5cd3..b6cd9afa2f 100644
--- a/includes/functions/functions_general.php
+++ b/includes/functions/functions_general.php
@@ -21,7 +21,7 @@ function zen_create_sort_heading($sortby, $colnum, $heading)
     $sort_suffix = '';
 
     if ($sortby) {
-        $sort_prefix = '<a href="' . zen_href_link($_GET['main_page'], zen_get_all_get_params(array('page', 'info', 'sort')) . 'page=1&sort=' . $colnum . ($sortby == $colnum . 'a' ? 'd' : 'a')) . '" title="' . zen_output_string(TEXT_SORT_PRODUCTS . ($sortby == $colnum . 'd' || substr($sortby, 0, 1) != $colnum ? TEXT_ASCENDINGLY : TEXT_DESCENDINGLY) . TEXT_BY . $heading) . '" class="productListing-heading">';
+        $sort_prefix = '<a href="' . zen_href_link($_GET['main_page'], zen_get_all_get_params(array('page', 'info', 'sort')) . 'page=1&sort=' . $colnum . ($sortby == $colnum . 'a' ? 'd' : 'a')) . '" title="' . zen_output_string(TEXT_SORT_PRODUCTS . ($sortby == $colnum . 'd' || substr($sortby, 0, 1) != $colnum ? TEXT_ASCENDINGLY : TEXT_DESCENDINGLY) . TEXT_BY . $heading) . '" class="productListing-heading" rel="nofollow">';
         $sort_suffix = (substr($sortby, 0, 1) == $colnum ? (substr($sortby, 1, 1) == 'a' ? PRODUCT_LIST_SORT_ORDER_ASCENDING : PRODUCT_LIST_SORT_ORDER_DESCENDING) : '') . '</a>';
     }