From 7b69053b1f3e1459088585c8e24b6491d21cdfe1 Mon Sep 17 00:00:00 2001
From: Marc-Alexandre Ghaly <marc-alexandreghaly@catalyst-ca.net>
Date: Mon, 18 Dec 2023 22:53:47 -0500
Subject: [PATCH] Issue #65: fix: DB error - Linkid variable string numeric
 value checked

---
 classes/persistent/linkhistory.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/classes/persistent/linkhistory.php b/classes/persistent/linkhistory.php
index 8cf69fd..b758987 100644
--- a/classes/persistent/linkhistory.php
+++ b/classes/persistent/linkhistory.php
@@ -73,7 +73,7 @@ public static function delete_link_history($linkids) {
     public static function count_clicked_links($userid, $noticeid, $linkid = 0) {
         global $DB;
         $params = [];
-        if ($linkid > 0) {
+        if ($linkid > 0 && is_numeric($linkid)) {
             $wheresql = "WHERE h.userid = :userid AND l.noticeid = :noticeid AND h.hlinkid = :hlinkid";
             $params = ['hlinkid' => $linkid];
         } else {