diff --git a/src/etc/inc/openvpn.inc b/src/etc/inc/openvpn.inc
index 302dd99ad..3f7e62ff5 100644
--- a/src/etc/inc/openvpn.inc
+++ b/src/etc/inc/openvpn.inc
@@ -71,11 +71,12 @@ $openvpn_compression_modes = array(
 	'adaptive' =>	gettext("Enabled with Adaptive Compression"),
 	'yes' =>	gettext("Enabled without Adaptive Compression"));
 
-function openvpn_create_key() {
-
+function openvpn_create_key()
+{
 	$fp = popen("/usr/local/sbin/openvpn --genkey --secret /dev/stdout 2>/dev/null", "r");
-	if (!$fp)
+	if (!$fp) {
 		return false;
+	}
 
 	$rslt = stream_get_contents($fp);
 	pclose($fp);
@@ -83,18 +84,25 @@ function openvpn_create_key() {
 	return $rslt;
 }
 
-function openvpn_vpnid_used($vpnid) {
+function openvpn_vpnid_used($vpnid)
+{
 	global $config;
 
-	if (is_array($config['openvpn']['openvpn-server']))
-		foreach ($config['openvpn']['openvpn-server'] as & $settings)
-			if ($vpnid == $settings['vpnid'])
+	if (isset($config['openvpn']['openvpn-server'])) {
+		foreach ($config['openvpn']['openvpn-server'] as &$settings) {
+			if ($vpnid == $settings['vpnid']) {
 				return true;
+			}
+		}
+	}
 
-	if (is_array($config['openvpn']['openvpn-client']))
-		foreach ($config['openvpn']['openvpn-client'] as & $settings)
-			if ($vpnid == $settings['vpnid'])
+	if (isset($config['openvpn']['openvpn-client'])) {
+		foreach ($config['openvpn']['openvpn-client'] as &$settings) {
+			if ($vpnid == $settings['vpnid']) {
 				return true;
+			}
+		}
+	}
 
 	return false;
 }
diff --git a/src/etc/inc/xmlrpc/legacy.inc b/src/etc/inc/xmlrpc/legacy.inc
index 2305e7d33..94d0611e0 100644
--- a/src/etc/inc/xmlrpc/legacy.inc
+++ b/src/etc/inc/xmlrpc/legacy.inc
@@ -260,15 +260,14 @@ function restore_config_section_xmlrpc($new_config)
 
     $vipbackup = array();
     $oldvips = array();
-    if (isset($new_config['virtualip'])) {
-        if (isset($config['virtualip']['vip'])) {
-            foreach ($config['virtualip']['vip'] as $vipindex => $vip) {
-                if ($vip['mode'] == "carp")
-                    $oldvips["{$vip['interface']}_vip{$vip['vhid']}"] = "{$vip['password']}{$vip['advskew']}{$vip['subnet']}{$vip['subnet_bits']}{$vip['advbase']}";
-                else if ($vip['mode'] == "ipalias" && (strstr($vip['interface'], "_vip") || strstr($vip['interface'], "lo0")))
-                    $oldvips[$vip['subnet']] = "{$vip['interface']}{$vip['subnet']}{$vip['subnet_bits']}";
-                else if (($vip['mode'] == "ipalias" || $vip['mode'] == 'proxyarp') && !(strstr($vip['interface'], "_vip") || strstr($vip['interface'], "lo0")))
-                    $vipbackup[] = $vip;
+    if (isset($config['virtualip']['vip'])) {
+        foreach ($config['virtualip']['vip'] as $vipindex => $vip) {
+            if ($vip['mode'] == "carp") {
+                $oldvips["{$vip['interface']}_vip{$vip['vhid']}"] = "{$vip['password']}{$vip['advskew']}{$vip['subnet']}{$vip['subnet_bits']}{$vip['advbase']}";
+            } elseif ($vip['mode'] == "ipalias" && (strstr($vip['interface'], "_vip") || strstr($vip['interface'], "lo0"))) {
+                $oldvips[$vip['subnet']] = "{$vip['interface']}{$vip['subnet']}{$vip['subnet_bits']}";
+            } elseif (($vip['mode'] == "ipalias" || $vip['mode'] == 'proxyarp') && !(strstr($vip['interface'], "_vip") || strstr($vip['interface'], "lo0"))) {
+                $vipbackup[] = $vip;
             }
         }
     }
@@ -278,10 +277,10 @@ function restore_config_section_xmlrpc($new_config)
 
     /* Then add ipalias and proxyarp types already defined on the backup */
     if (is_array($vipbackup) && !empty($vipbackup)) {
-        if (!is_array($config['virtualip'])) {
+        if (!isset($config['virtualip'])) {
             $config['virtualip'] = array();
         }
-        if (!is_array($config['virtualip']['vip'])) {
+        if (!isset($config['virtualip']['vip'])) {
             $config['virtualip']['vip'] = array();
         }
         foreach ($vipbackup as $vip) {
@@ -298,7 +297,7 @@ function restore_config_section_xmlrpc($new_config)
      * The real work on handling the vips specially
      * This is a copy of intefaces_vips_configure with addition of not reloading existing/not changed carps
      */
-    if (isset($new_config['virtualip']) && is_array($config['virtualip']) && is_array($config['virtualip']['vip'])) {
+    if (isset($new_config['virtualip']['vip'])) {
         $carp_setuped = false;
         $anyproxyarp = false;
         foreach ($config['virtualip']['vip'] as $vip) {
diff --git a/src/www/firewall_nat_edit.php b/src/www/firewall_nat_edit.php
index a090f3497..e4e99a528 100644
--- a/src/www/firewall_nat_edit.php
+++ b/src/www/firewall_nat_edit.php
@@ -763,7 +763,7 @@ include("head.inc");
 													<?php endif; ?>
 					<?php							endforeach; ?>
 
-					<?php							if (is_array($config['virtualip']['vip'])):
+					<?php							if (isset($config['virtualip']['vip'])):
 														foreach ($config['virtualip']['vip'] as $sn):
 															if (isset($sn['noexpand']))
 																continue;
diff --git a/src/www/firewall_rules_edit.php b/src/www/firewall_rules_edit.php
index a7aca47e4..75373e95b 100644
--- a/src/www/firewall_rules_edit.php
+++ b/src/www/firewall_rules_edit.php
@@ -282,7 +282,7 @@ if ($_POST) {
 	}
 
 	if (($_POST['ipprotocol'] <> "") && ($_POST['gateway'] <> "")) {
-		if(is_array($config['gateways']['gateway_group'])) {
+		if (isset($config['gateways']['gateway_group'])) {
 			foreach($config['gateways']['gateway_group'] as $gw_group) {
 				if($gw_group['name'] == $_POST['gateway']) {
 					$family = $a_gatewaygroups[$_POST['gateway']]['ipprotocol'];
diff --git a/src/www/firewall_virtual_ip.php b/src/www/firewall_virtual_ip.php
index c3dc3d2ed..d148992c5 100644
--- a/src/www/firewall_virtual_ip.php
+++ b/src/www/firewall_virtual_ip.php
@@ -33,9 +33,10 @@ require_once("guiconfig.inc");
 require_once("interfaces.inc");
 require_once("filter.inc");
 
-if (!is_array($config['virtualip']['vip'])) {
+if (!isset($config['virtualip']['vip'])) {
 	$config['virtualip']['vip'] = array();
 }
+
 $a_vip = &$config['virtualip']['vip'];
 
 if ($_POST) {
diff --git a/src/www/interfaces_groups.php b/src/www/interfaces_groups.php
index d841a170a..63695cac8 100644
--- a/src/www/interfaces_groups.php
+++ b/src/www/interfaces_groups.php
@@ -30,8 +30,9 @@
 require_once("guiconfig.inc");
 require_once("interfaces.inc");
 
-if (!is_array($config['ifgroups']['ifgroupentry']))
+if (!isset($config['ifgroups']['ifgroupentry'])) {
 	$config['ifgroups']['ifgroupentry'] = array();
+}
 
 $a_ifgroups = &$config['ifgroups']['ifgroupentry'];
 
diff --git a/src/www/wizards/openvpn_wizard.inc b/src/www/wizards/openvpn_wizard.inc
index 6a2011f70..eb4809731 100644
--- a/src/www/wizards/openvpn_wizard.inc
+++ b/src/www/wizards/openvpn_wizard.inc
@@ -660,8 +660,9 @@ function step12_submitphpaction() {
 		$config['filter']['rule'][] = $rule;
 	}
 
-	if (!is_array($config['openvpn']['openvpn-server']))
+	if (!isset($config['openvpn']['openvpn-server'])) {
 		$config['openvpn']['openvpn-server'] = array();
+	}
 
 	$config['openvpn']['openvpn-server'][] = $server;
 
@@ -670,5 +671,3 @@ function step12_submitphpaction() {
 	header("Location: vpn_openvpn_server.php");
 	exit;
 }
-
-?>