diff --git a/src/etc/inc/notices.inc b/src/etc/inc/notices.inc
index 46bf40eba..22d08058e 100644
--- a/src/etc/inc/notices.inc
+++ b/src/etc/inc/notices.inc
@@ -56,8 +56,6 @@ function get_notices()
 
 function close_notice($id)
 {
-    $ids = array();
-
     if (file_exists('/tmp/notices')) {
         if ($id == 'all') {
             @unlink('/tmp/notices');
diff --git a/src/etc/inc/rrd.inc b/src/etc/inc/rrd.inc
index 9d08eff18..de01eed91 100644
--- a/src/etc/inc/rrd.inc
+++ b/src/etc/inc/rrd.inc
@@ -30,7 +30,7 @@ function rrd_create($rrdcreatecmd)
 {
     $rrdcreateoutput = array();
     $rrdcreatereturn = 0;
-    $_gb = exec("$rrdcreatecmd 2>&1", $rrdcreateoutput, $rrdcreatereturn);
+    exec("$rrdcreatecmd 2>&1", $rrdcreateoutput, $rrdcreatereturn);
     if ($rrdcreatereturn != 0) {
         $rrdcreateoutput = implode(" ", $rrdcreateoutput);
         log_error(sprintf('RRD create failed exited with %s, the error is: %s', $rrdcreatereturn, $rrdcreateoutput));
@@ -119,7 +119,6 @@ function rrd_configure($verbose = false)
         $rrdupdatesh .= "do\n";
         $rrdupdatesh .= "";
 
-        $i = 0;
         $ifdescrs = get_configured_interface_with_descr();
         /* IPsec counters */
         $ifdescrs['ipsec'] = "IPsec";
@@ -296,7 +295,6 @@ function rrd_configure($verbose = false)
                 $rrdupdatesh .= "$rrdtool update $rrddbpath$ifname$cellular N:\"\$GSTATS\"";
             }
         }
-        $i++;
 
         /* System only statistics */
         $ifname = "system";
diff --git a/src/www/firewall_scrub_edit.php b/src/www/firewall_scrub_edit.php
index d0ed46d58..2147a5b17 100644
--- a/src/www/firewall_scrub_edit.php
+++ b/src/www/firewall_scrub_edit.php
@@ -39,7 +39,6 @@ function filter_tos_values()
         'lowdelay' => gettext('lowdelay'),
         'critical' => gettext('critical'),
         'inetcontrol' => gettext('inetcontrol'),
-        'lowdelay' => gettext('lowdelay'),
         'netcontrol' => gettext('netcontrol'),
         'throughput' => gettext('throughput'),
         'reliability' => gettext('reliability'),