diff --git a/lam/lib/modules.inc b/lam/lib/modules.inc
index e833892d..73fa32d4 100644
--- a/lam/lib/modules.inc
+++ b/lam/lib/modules.inc
@@ -1543,7 +1543,7 @@ class accountContainer {
 		foreach ($attr_names as $i => $name) {
 			// find deleted attributes
 			if (isset($orig[$name]) && is_array($orig[$name])) {
-				foreach ($orig[$name] as $j => $value) {
+				foreach ($orig[$name] as $value) {
 					if (is_array($attributes[$name])) {
 						if (!in_array($value, $attributes[$name], true)
 								&& ($value !== null)
@@ -1558,7 +1558,7 @@ class accountContainer {
 			}
 			// find new attributes
 			if (isset($attributes[$name]) && is_array($attributes[$name])) {
-				foreach ($attributes[$name] as $j => $value) {
+				foreach ($attributes[$name] as $value) {
 					if (isset($orig[$name]) && is_array($orig[$name])) {
 						if (!in_array($value, $orig[$name], true)
 								&& ($value !== null)
@@ -1572,7 +1572,7 @@ class accountContainer {
 			}
 			// find unchanged attributes
 			if (isset($orig[$name]) && is_array($orig[$name]) && is_array($attributes[$name])) {
-				foreach ($attributes[$name] as $j => $value) {
+				foreach ($attributes[$name] as $value) {
 					if (($value !== null) && ($value !== '') && in_array($value, $orig[$name], true)) {
 						$notchanged[$name][] = $value;
 					}
diff --git a/lam/lib/modules/dhcp_settings.inc b/lam/lib/modules/dhcp_settings.inc
index 3ed28827..67a1c420 100644
--- a/lam/lib/modules/dhcp_settings.inc
+++ b/lam/lib/modules/dhcp_settings.inc
@@ -432,17 +432,12 @@ By default, the nodes are configured as H-Nodes which fits for small networks. I
 		if (!empty($_POST['dns'])) {
 			$_POST['dns'] = trim($_POST['dns']);
 			$ex = explode(",", $_POST['dns']);
-			$dns = "";
 			$is_first=true;
 			$invalid = false;
 			foreach($ex AS $string) {
 				if ($is_first) {
-					$dns .= $string;
 					$is_first=false;
 			    }
-				else {
-			    	$dns .= ",$string";
-				}
 
 	            if (!check_ip($string)) {
 			        $invalid = true;
diff --git a/lam/lib/modules/inetOrgPerson.inc b/lam/lib/modules/inetOrgPerson.inc
index cb5aaf09..968c3ea2 100644
--- a/lam/lib/modules/inetOrgPerson.inc
+++ b/lam/lib/modules/inetOrgPerson.inc
@@ -1657,7 +1657,6 @@ class inetOrgPerson extends baseModule implements passwordService {
 	private function uploadPhoto() {
 		$messages = array();
 		if ($_FILES['photoFile'] && ($_FILES['photoFile']['size'] > 0)) {
-			$name = $_FILES['photoFile']['name'];
 			$handle = fopen($_FILES['photoFile']['tmp_name'], "r");
 			$data = fread($handle, 100000000);
 			if (!empty($this->moduleSettings['inetOrgPerson_jpegPhoto_maxSize'][0]) && (strlen($data) > (1024 * $this->moduleSettings['inetOrgPerson_jpegPhoto_maxSize'][0]))) {
diff --git a/lam/lib/modules/kolabUser.inc b/lam/lib/modules/kolabUser.inc
index e3b8d31d..5ba714ce 100644
--- a/lam/lib/modules/kolabUser.inc
+++ b/lam/lib/modules/kolabUser.inc
@@ -5,7 +5,7 @@ use \LAM\PDF\PDFTableRow;
 /*
 
   This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
-  Copyright (C) 2004 - 2018  Roland Gruber
+  Copyright (C) 2004 - 2020  Roland Gruber
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -668,7 +668,6 @@ class kolabUser extends baseModule {
 			}
 			uksort($delegates, 'compareDN');
 			$_SESSION['kolabUser_kolabDelegate'] = $kolabDelegate;
-			$delegateFields = array();
 			$delegateContainer = new htmlTable();
 			for ($i = 0; $i < sizeof($kolabDelegate); $i++) {
 				$delegateContainer->addElement(new htmlOutputText($kolabDelegate[$i]));
diff --git a/lam/lib/modules/pykotaBillingCode.inc b/lam/lib/modules/pykotaBillingCode.inc
index 16d6d1c7..83da7bb1 100644
--- a/lam/lib/modules/pykotaBillingCode.inc
+++ b/lam/lib/modules/pykotaBillingCode.inc
@@ -2,7 +2,7 @@
 /*
 
   This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
-  Copyright (C) 2013 - 2019  Roland Gruber
+  Copyright (C) 2013 - 2020  Roland Gruber
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -273,7 +273,7 @@ class pykotaBillingCode extends baseModule {
 		if ($this->codeCache == null) {
 			$this->loadCodeCache();
 		}
-		foreach ($this->codeCache as $dn => $bCode) {
+		foreach ($this->codeCache as $bCode) {
 			if (!empty($bCode) && ($bCode == $code)) {
 				return true;
 			}
diff --git a/lam/lib/modules/pykotaPrinter.inc b/lam/lib/modules/pykotaPrinter.inc
index b37d026f..61c552d8 100644
--- a/lam/lib/modules/pykotaPrinter.inc
+++ b/lam/lib/modules/pykotaPrinter.inc
@@ -2,7 +2,7 @@
 /*
 
   This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
-  Copyright (C) 2013 - 2019  Roland Gruber
+  Copyright (C) 2013 - 2020  Roland Gruber
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -620,7 +620,7 @@ class pykotaPrinter extends baseModule {
 		if ($this->printerCache == null) {
 			$this->loadPrinterNameCache();
 		}
-		foreach ($this->printerCache as $dn => $attrs) {
+		foreach ($this->printerCache as $attrs) {
 			if (!empty($attrs['cn']) && ($attrs['cn'] == $cn)) {
 				return true;
 			}
diff --git a/lam/lib/types/dhcp.inc b/lam/lib/types/dhcp.inc
index 4b01ace2..25ab4fb3 100644
--- a/lam/lib/types/dhcp.inc
+++ b/lam/lib/types/dhcp.inc
@@ -3,7 +3,7 @@
 
   This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
   Copyright (C) 2008         Thomas Manninger
-                2009 - 2018  Roland Gruber
+                2009 - 2020  Roland Gruber
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -189,7 +189,7 @@ class lamDHCPList extends lamList {
 			$entries = searchLDAP($data['dn'], 'objectClass=dhcpHost', array('dhcpstatements', 'dhcphwaddress', 'cn'));
 			if (sizeof($entries) > 0) {
 				foreach ($entries as $entry) {
-					foreach ($entry as $attrName => $attrValues) {
+					foreach ($entry as $attrValues) {
 						if (!is_array($attrValues)) {
 							continue;
 						}
@@ -294,7 +294,7 @@ class lamDHCPList extends lamList {
             	$table = new htmlTable();
             	$table->setCSSClasses(array('nowrap'));
                 $ranges = array();
-				foreach($entry['dhcprange'] AS $id => $value) {
+				foreach($entry['dhcprange'] AS $value) {
 					if (!empty($value) && !is_numeric($value)) {
 						$ex = explode(" ", $value);
 						$row = new htmlTableRow(
@@ -327,7 +327,7 @@ class lamDHCPList extends lamList {
 					}
 				}
 				uksort($ranges, 'strnatcasecmp');
-				foreach ($ranges as $text => $row) {
+				foreach ($ranges as $row) {
 					$table->addElement($row);
 				}
 				return $table;
diff --git a/lam/lib/upload.inc b/lam/lib/upload.inc
index 585b529d..e743d9e8 100644
--- a/lam/lib/upload.inc
+++ b/lam/lib/upload.inc
@@ -3,7 +3,6 @@ namespace LAM\UPLOAD;
 use ZipArchive;
 use accountContainer;
 /*
- $Id$
 
  This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
  Copyright (C) 2016 - 2020  Roland Gruber
@@ -309,7 +308,6 @@ class Uploader {
 				}
 			}
 			// load account
-			$typeManager = new \LAM\TYPES\TypeManager();
 			$_SESSION['mass_pdfAccount'] = new accountContainer($this->type, 'mass_pdfAccount');
 			$pdfErrors = $_SESSION['mass_pdfAccount']->load_account($dn, $infoAttributes);
 			if (sizeof($pdfErrors) > 0) {