From 031f5fe6f44fcf6fc81632d67106ababa20db22e Mon Sep 17 00:00:00 2001
From: Isaac Connor <isaac@zoneminder.com>
Date: Wed, 25 Jan 2023 11:44:12 -0500
Subject: [PATCH] Don't output preg_match errors

---
 web/skins/classic/views/_monitor_filters.php | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/web/skins/classic/views/_monitor_filters.php b/web/skins/classic/views/_monitor_filters.php
index 2b4828699..4ccfccac1 100644
--- a/web/skins/classic/views/_monitor_filters.php
+++ b/web/skins/classic/views/_monitor_filters.php
@@ -218,7 +218,7 @@ $html .= '</span>
         $regexp = '/'.preg_quote($regexp,'/').'/i';
       }
 
-      if ( !preg_match($regexp, $Monitor->Name()) ) {
+      if ( !@preg_match($regexp, $Monitor->Name()) ) {
         continue;
       }
     }
@@ -247,7 +247,6 @@ $html .= '</span>
     }
     $displayMonitors[] = $monitors[$i];
   } # end foreach monitor
-
   $html .= '<span class="MonitorFilter"><label>'.translate('Monitor').'</label>';
   $html .= htmlSelect('MonitorId[]', $monitors_dropdown, $selected_monitor_ids,
     array(