diff --git a/htdocs/commande/class/commande.class.php b/htdocs/commande/class/commande.class.php
index 37d551e2dc4..70bce59f557 100644
--- a/htdocs/commande/class/commande.class.php
+++ b/htdocs/commande/class/commande.class.php
@@ -3243,7 +3243,7 @@ class Commande extends CommonOrder
 
 					if ($product_stock < $qty) {
 						$langs->load("errors");
-						$this->error = $langs->trans('ErrorStockIsNotEnoughToAddProductOnOrder', $product->ref);
+						$this->error = $langs->trans('ErrorStockIsNotEnoughToAddProductOnOrder', (string) $product->ref);
 						$this->errors[] = $this->error;
 
 						dol_syslog(get_class($this)."::addline error=Product ".$product->ref.": ".$this->error, LOG_ERR);
diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index b6f466a72d5..f1ac01ac182 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -4647,7 +4647,7 @@ class Facture extends CommonInvoice
 
 					if ($product_stock < $qty) {
 						$langs->load("errors");
-						$this->error = $langs->trans('ErrorStockIsNotEnoughToAddProductOnInvoice', $product->ref);
+						$this->error = $langs->trans('ErrorStockIsNotEnoughToAddProductOnInvoice', (string) $product->ref);
 						$this->db->rollback();
 						return -3;
 					}
diff --git a/htdocs/core/lib/files.lib.php b/htdocs/core/lib/files.lib.php
index 37dc1df4f6a..568188d0c13 100644
--- a/htdocs/core/lib/files.lib.php
+++ b/htdocs/core/lib/files.lib.php
@@ -1913,7 +1913,7 @@ function dol_meta_create($object)
 	if ($dir) {
 		$object->fetch_thirdparty();
 
-		$objectref = dol_sanitizeFileName($object->ref);
+		$objectref = dol_sanitizeFileName((string) $object->ref);
 		$dir = $dir."/".$objectref;
 		$file = $dir."/".$objectref.".meta";
 
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index c01ef4ad3e9..aad567193dc 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -3429,7 +3429,7 @@ function dol_banner_tab($object, $paramid, $morehtml = '', $shownav = 1, $fieldi
 		}
 		$tmptxt = $object->getLibStatut(6, $object->alreadypaid);
 		if (empty($tmptxt) || $tmptxt == $object->getLibStatut(3)) {
-			$tmptxt = $object->getLibStatut(5, $object->alreadypaid);
+			$tmptxt = $object->getLibStatut(5, (float) $object->alreadypaid);
 		}
 		$morehtmlstatus .= $tmptxt;
 	} elseif (in_array($object->element, array('chargesociales', 'loan', 'tva'))) {	// TODO Move this to use ->alreadypaid like for invoices
@@ -8831,7 +8831,7 @@ function get_exdir($num, $level, $alpha, $withoutslash, $object, $modulepart = '
 		// We will enhance here a common way of forging path for document storage.
 		// In a future, we may distribute directories on several levels depending on setup and object.
 		// Here, $object->id, $object->ref and $modulepart are required.
-		if (in_array($modulepart, array('societe', 'thirdparty')) && $object instanceOf Societe) {
+		if (in_array($modulepart, array('societe', 'thirdparty')) && $object instanceof Societe) {
 			// Special case for thirdparty, where the ref is a company name that is not unique so path on disk is using the ID instead of the ref
 			$path = dol_sanitizeFileName((string) $object->id);
 		} else {
@@ -11650,14 +11650,14 @@ function dol_eval_new($s)
 {
 	// Only this global variables can be read by eval function and returned to caller
 	global $conf,	// Read of const is done with getDolGlobalString() but we need $conf->currency for example
-		$db, $langs, $user, $website, $websitepage,
-		$action, $mainmenu, $leftmenu,
-		$mysoc,
-		$objectoffield,	// To allow the use of $objectoffield in computed fields
+	$db, $langs, $user, $website, $websitepage,
+	$action, $mainmenu, $leftmenu,
+	$mysoc,
+	$objectoffield,	// To allow the use of $objectoffield in computed fields
 
-		// Old variables used
-		$object,
-		$obj; // To get $obj used into list when dol_eval() is used for computed fields and $obj is not yet $object
+	// Old variables used
+	$object,
+	$obj; // To get $obj used into list when dol_eval() is used for computed fields and $obj is not yet $object
 
 	// PHP < 7.4.0
 	defined('T_COALESCE_EQUAL') || define('T_COALESCE_EQUAL', PHP_INT_MAX);
diff --git a/htdocs/core/modules/expedition/doc/pdf_espadon.modules.php b/htdocs/core/modules/expedition/doc/pdf_espadon.modules.php
index b8f713dbd62..b6b4c56356f 100644
--- a/htdocs/core/modules/expedition/doc/pdf_espadon.modules.php
+++ b/htdocs/core/modules/expedition/doc/pdf_espadon.modules.php
@@ -1179,7 +1179,7 @@ class pdf_espadon extends ModelePdfExpedition
 				}
 				$Yoff += 8;
 				$pdf->SetXY($this->page_largeur - $this->marge_droite - $w, $Yoff);
-				$pdf->MultiCell($w, 2, $outputlangs->transnoentities("RefOrder")." : ".$outputlangs->transnoentities($text), 0, 'R');
+				$pdf->MultiCell($w, 2, $outputlangs->transnoentities("RefOrder")." : ".$outputlangs->transnoentities((string) $text), 0, 'R');
 				$Yoff += 3;
 				$pdf->SetXY($this->page_largeur - $this->marge_droite - $w, $Yoff);
 				$pdf->MultiCell($w, 2, $outputlangs->transnoentities("OrderDate")." : ".dol_print_date($linkedobject->date, "day", false, $outputlangs, true), 0, 'R');
diff --git a/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php b/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php
index e051869f3c8..7cc6234a744 100644
--- a/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php
+++ b/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php
@@ -1035,7 +1035,7 @@ class pdf_rouget extends ModelePdfExpedition
 				}
 				$Yoff += 8;
 				$pdf->SetXY($this->page_largeur - $this->marge_droite - $w, $Yoff);
-				$pdf->MultiCell($w, 2, $outputlangs->transnoentities("RefOrder")." : ".$outputlangs->transnoentities($text), 0, 'R');
+				$pdf->MultiCell($w, 2, $outputlangs->transnoentities("RefOrder")." : ".$outputlangs->transnoentities((string) $text), 0, 'R');
 				$Yoff += 3;
 				$pdf->SetXY($this->page_largeur - $this->marge_droite - $w, $Yoff);
 				$pdf->MultiCell($w, 2, $outputlangs->transnoentities("OrderDate")." : ".dol_print_date($linkedobject->date, "day", false, $outputlangs, true), 0, 'R');
diff --git a/htdocs/core/modules/propale/doc/pdf_azur.modules.php b/htdocs/core/modules/propale/doc/pdf_azur.modules.php
index 2434f07a908..3ec4f84b215 100644
--- a/htdocs/core/modules/propale/doc/pdf_azur.modules.php
+++ b/htdocs/core/modules/propale/doc/pdf_azur.modules.php
@@ -1082,7 +1082,7 @@ class pdf_azur extends ModelePDFPropales
 						$bankid = $object->fk_bank; // For backward compatibility when object->fk_account is forced with object->fk_bank
 					}
 					$account = new Account($this->db);
-					$account->fetch($bankid);
+					$account->fetch((int) $bankid);
 
 					$curx = $this->marge_gauche;
 					$cury = $posy;
diff --git a/htdocs/core/modules/propale/doc/pdf_cyan.modules.php b/htdocs/core/modules/propale/doc/pdf_cyan.modules.php
index dd9e78421ab..21c3dcf9bcc 100644
--- a/htdocs/core/modules/propale/doc/pdf_cyan.modules.php
+++ b/htdocs/core/modules/propale/doc/pdf_cyan.modules.php
@@ -1250,7 +1250,7 @@ class pdf_cyan extends ModelePDFPropales
 						$bankid = $object->fk_bank; // For backward compatibility when object->fk_account is forced with object->fk_bank
 					}
 					$account = new Account($this->db);
-					$account->fetch($bankid);
+					$account->fetch((int) $bankid);
 
 					$curx = $this->marge_gauche;
 					$cury = $posy;
diff --git a/htdocs/product/class/product.class.php b/htdocs/product/class/product.class.php
index ada2a2015e2..7a58f5f7a87 100644
--- a/htdocs/product/class/product.class.php
+++ b/htdocs/product/class/product.class.php
@@ -891,7 +891,7 @@ class Product extends CommonObject
 		//'tosell'       =>array('type'=>'integer',      'label'=>'Status',           'enabled'=>1, 'visible'=>1,  'notnull'=>1, 'default'=>'0', 'index'=>1,  'position'=>1000, 'arrayofkeyval'=>array(0=>'Draft', 1=>'Active', -1=>'Cancel')),
 		//'tobuy'        =>array('type'=>'integer',      'label'=>'Status',           'enabled'=>1, 'visible'=>1,  'notnull'=>1, 'default'=>'0', 'index'=>1,  'position'=>1000, 'arrayofkeyval'=>array(0=>'Draft', 1=>'Active', -1=>'Cancel')),
 		'mandatory_period' => array('type' => 'integer', 'label' => 'mandatoryperiod', 'enabled' => 1, 'visible' => -1,  'notnull' => 1, 'default' => '0', 'index' => 1,  'position' => 1000),
-		'stockable_product'	=>array('type' => 'integer', 'label' => 'stockable_product', 'enabled' => 1, 'visible' => 1, 'default' => '1', 'notnull' => 1, 'index' => 1, 'position' => 502),
+		'stockable_product'	=> array('type' => 'integer', 'label' => 'stockable_product', 'enabled' => 1, 'visible' => 1, 'default' => '1', 'notnull' => 1, 'index' => 1, 'position' => 502),
 	);
 
 	/**
@@ -1148,7 +1148,9 @@ class Product extends CommonObject
 					$sql .= ", fk_unit";
 					$sql .= ", mandatory_period";
 					$sql .= ", stockable_product";
-					if (!empty($this->default_vat_code)) $sql.=", default_vat_code";
+					if (!empty($this->default_vat_code)) {
+						$sql .= ", default_vat_code";
+					}
 					$sql .= ") VALUES (";
 					$sql .= "'".$this->db->idate($this->date_creation)."'";
 					$sql .= ", ".(!empty($this->entity) ? (int) $this->entity : (int) $conf->entity);
@@ -1181,7 +1183,9 @@ class Product extends CommonObject
 					$sql .= ", ".($this->fk_unit > 0 ? ((int) $this->fk_unit) : 'NULL');
 					$sql .= ", '".$this->db->escape((string) $this->mandatory_period)."'";
 					$sql .= ", ".((int) $this->stockable_product);
-					if (!empty($this->default_vat_code)) $sql.=", '".$this->db->escape($this->default_vat_code)."'";
+					if (!empty($this->default_vat_code)) {
+						$sql .= ", '".$this->db->escape($this->default_vat_code)."'";
+					}
 					$sql .= ")";
 					dol_syslog(get_class($this)."::Create", LOG_DEBUG);
 
@@ -7233,7 +7237,7 @@ class Product extends CommonObject
 		$return .= '<div class="info-box info-box-sm">';
 		$return .= '<div class="info-box-img">';
 		$label = '';
-		if ($this->is_photo_available($conf->product->multidir_output[$this->entity])) {
+		if ($this->entity !== null && $this->is_photo_available($conf->product->multidir_output[$this->entity])) {
 			$label .= $this->show_photos('product', $conf->product->multidir_output[$this->entity], 1, 1, 0, 0, 0, 120, 160, 0, 0, 0, '', 'photoref photokanban');
 			$return .= $label;
 		} else {