From 970f65b7057bb0f747f0f026e49064144bdbfbf1 Mon Sep 17 00:00:00 2001
From: Nick Liu <deltik@gmx.com>
Date: Sat, 18 Jan 2020 19:20:48 +0100
Subject: [PATCH] Null check for optional query string in e107::url()

---
 e107_handlers/e107_class.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/e107_handlers/e107_class.php b/e107_handlers/e107_class.php
index 30d0b7486..9f2faec83 100644
--- a/e107_handlers/e107_class.php
+++ b/e107_handlers/e107_class.php
@@ -3559,7 +3559,7 @@ class e107
 
 			// Avoid duplicate query keys. eg. URL has ?id=x and $options['query']['id'] exists.
 			// @see forum/e_url.php - topic/redirect and forum/view_shortcodes.php sc_post_url()
-			list($legacyUrl, $tmp) = explode("?", $legacyUrl);
+			list($legacyUrl, $tmp) = array_pad(explode("?", $legacyUrl), 2, null);
 
 			if (!empty($tmp))
 			{