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-rw-r--r--comments.php8
1 files changed, 7 insertions, 1 deletions
diff --git a/comments.php b/comments.php
index 0ffb05d97..78f3d011d 100644
--- a/comments.php
+++ b/comments.php
@@ -105,9 +105,15 @@ $page['where_clauses'] = array();
if (isset($_GET['cat']) and 0 != $_GET['cat'])
{
check_input_parameter('cat', $_GET, false, PATTERN_ID);
+
+ $category_ids = get_subcat_ids(array($_GET['cat']));
+ if (empty($category_id))
+ {
+ $category_ids = array(-1);
+ }
$page['where_clauses'][] =
- 'category_id IN ('.implode(',', get_subcat_ids(array($_GET['cat']))).')';
+ 'category_id IN ('.implode(',', $category_ids).')';
}
// search a particular author