diff --git a/htdocs/commande/card.php b/htdocs/commande/card.php
index 0a69e485adf..8521e5be6fc 100644
--- a/htdocs/commande/card.php
+++ b/htdocs/commande/card.php
@@ -5,7 +5,7 @@
  * Copyright (C) 2005-2015	Regis Houssin			<regis.houssin@inodbox.com>
  * Copyright (C) 2006		Andre Cianfarani		<acianfa@free.fr>
  * Copyright (C) 2010-2013	Juanjo Menent			<jmenent@2byte.es>
- * Copyright (C) 2011-2022	Philippe Grand			<philippe.grand@atoo-net.com>
+ * Copyright (C) 2011-2023	Philippe Grand			<philippe.grand@atoo-net.com>
  * Copyright (C) 2012-2013	Christophe Battarel		<christophe.battarel@altairis.fr>
  * Copyright (C) 2012-2016	Marcos García			<marcosgdf@gmail.com>
  * Copyright (C) 2012       Cedric Salvador      	<csalvador@gpcsolutions.fr>
@@ -660,6 +660,10 @@ if (empty($reshook)) {
 		$price_ht_devise = '';
 		$price_ttc = '';
 		$price_ttc_devise = '';
+		$pu_ht = '';
+		$pu_ttc = '';
+		$pu_ht_devise = '';
+		$pu_ttc_devise  = '';
 
 		if (GETPOST('price_ht') !== '') {
 			$price_ht = price2num(GETPOST('price_ht'), 'MU', 2);
diff --git a/htdocs/core/lib/sendings.lib.php b/htdocs/core/lib/sendings.lib.php
index 6d9598a04ae..a2fbaeef92e 100644
--- a/htdocs/core/lib/sendings.lib.php
+++ b/htdocs/core/lib/sendings.lib.php
@@ -50,7 +50,7 @@ function shipping_prepare_head($object)
 	if ($conf->delivery_note->enabled && $user->rights->expedition->delivery->lire) {
 		// delivery link
 		$object->fetchObjectLinked($object->id, $object->element);
-		if (is_array($object->linkedObjectsIds['delivery']) && count($object->linkedObjectsIds['delivery']) > 0) {        // If there is a delivery
+		if (isset($object->linkedObjectsIds['delivery']) && is_array($object->linkedObjectsIds['delivery']) && count($object->linkedObjectsIds['delivery']) > 0) {        // If there is a delivery
 			// Take first one element of array
 			$tmp = reset($object->linkedObjectsIds['delivery']);
 
diff --git a/htdocs/expedition/card.php b/htdocs/expedition/card.php
index 8c62cdc3914..a9fcea34440 100644
--- a/htdocs/expedition/card.php
+++ b/htdocs/expedition/card.php
@@ -337,7 +337,7 @@ if (empty($reshook)) {
 			// Extrafields
 			$array_options[$i] = $extrafields->getOptionalsFromPost($object->table_element_line, $i);
 			// Unset extrafield
-			if (is_array($extrafields->attributes[$object->table_element_line]['label'])) {
+			if (isset($extrafields->attributes[$object->table_element_line]['label']) && is_array($extrafields->attributes[$object->table_element_line]['label'])) {
 				// Get extra fields
 				foreach ($extrafields->attributes[$object->table_element_line]['label'] as $key => $value) {
 					unset($_POST["options_".$key]);
diff --git a/htdocs/includes/tcpdi/tcpdi_parser.php b/htdocs/includes/tcpdi/tcpdi_parser.php
index 13e9839f2b4..174c496d4f4 100644
--- a/htdocs/includes/tcpdi/tcpdi_parser.php
+++ b/htdocs/includes/tcpdi/tcpdi_parser.php
@@ -1365,7 +1365,7 @@ class tcpdi_parser {
     	$obj = $this->getObjectVal($obj);
     	if (isset ($obj[1][1]['/Rotate'])) {
     		$res = $this->getObjectVal($obj[1][1]['/Rotate']);
-    		if ($res[0] == PDF_TYPE_OBJECT)
+    		if (isset($res[0]) && $res[0] == PDF_TYPE_OBJECT)
                 return $res[1];
             return $res;
     	} else {
@@ -1373,7 +1373,7 @@ class tcpdi_parser {
     			return false;
     		} else {
                 $res = $this->_getPageRotation($obj[1][1]['/Parent']);
-                if ($res[0] == PDF_TYPE_OBJECT)
+                if (isset($res[0]) && $res[0] == PDF_TYPE_OBJECT)
                     return $res[1];
                 return $res;
     		}