diff --git a/htdocs/product/admin/price_rules.php b/htdocs/product/admin/price_rules.php
index cd499559fd7..87a33052cbb 100644
--- a/htdocs/product/admin/price_rules.php
+++ b/htdocs/product/admin/price_rules.php
@@ -168,7 +168,7 @@ for ($i = 1; $i <= $produit_multiprices_limit; $i++) {
 					echo $langs->trans('SellingPrice').' '.$i;
 					// Label of price
 					$keyforlabel = 'PRODUIT_MULTIPRICES_LABEL'.$i;
-				if (!empty(getDolGlobalString('$keyforlabel'))) {
+				if (getDolGlobalString($keyforlabel)) {
 					print ' - '.$langs->trans(getDolGlobalString($keyforlabel));
 				}
 				?>
diff --git a/htdocs/product/card.php b/htdocs/product/card.php
index c7235dcd684..f362e851eb4 100644
--- a/htdocs/product/card.php
+++ b/htdocs/product/card.php
@@ -1673,8 +1673,6 @@ if (is_object($objcanvas) && $objcanvas->displayCanvasExists($canvasdisplayactio
 			}
 
 			// Note (private, no output on invoices, propales...)
-			//if (!empty(getDolGlobalString('MAIN_DISABLE_NOTES_TAB')))       available in create mode
-			//{
 			print '<tr><td class="tdtop">'.$langs->trans("NoteNotVisibleOnBill").'</td><td>';
 
 			// We use dolibarr_details as type of DolEditor here, because we must not accept images as description is included into PDF and not accepted by TCPDF.
diff --git a/htdocs/product/list.php b/htdocs/product/list.php
index d7c09a7b180..fceb1781b51 100644
--- a/htdocs/product/list.php
+++ b/htdocs/product/list.php
@@ -296,8 +296,8 @@ if (getDolGlobalString('PRODUIT_MULTIPRICES')) {
 	$produit_multiprices_limit = getDolGlobalInt('PRODUIT_MULTIPRICES_LIMIT');
 	for ($i = 1; $i <= $produit_multiprices_limit; $i++) {
 		$keyforlabel = 'PRODUIT_MULTIPRICES_LABEL'.$i;
-		if (!empty(getDolGlobalString('$keyforlabel'))) {
-			$labelp = $i.' - '.$langs->transnoentitiesnoconv(getDolGlobalString('$keyforlabel'));
+		if (getDolGlobalString($keyforlabel)) {
+			$labelp = $i.' - '.$langs->transnoentitiesnoconv(getDolGlobalString($keyforlabel));
 		} else {
 			$labelp = $langs->transnoentitiesnoconv("SellingPrice")." ".$i;
 		}
diff --git a/htdocs/product/price.php b/htdocs/product/price.php
index c71a853e535..c8cc90fb249 100644
--- a/htdocs/product/price.php
+++ b/htdocs/product/price.php
@@ -1089,7 +1089,7 @@ if (getDolGlobalString('PRODUIT_MULTIPRICES') || getDolGlobalString('PRODUIT_CUS
 				print '</form>';
 			} else {
 				print $langs->trans("SellingPrice").' '.$i;
-				if (!empty(getDolGlobalString('$keyforlabel'))) {
+				if (getDolGlobalString($keyforlabel)) {
 					print ' - '.$langs->trans(getDolGlobalString($keyforlabel));
 				}
 			}
@@ -1122,7 +1122,7 @@ if (getDolGlobalString('PRODUIT_MULTIPRICES') || getDolGlobalString('PRODUIT_CUS
 			// Price by quantity
 			if (getDolGlobalString('PRODUIT_CUSTOMER_PRICES_BY_QTY') || getDolGlobalString('PRODUIT_CUSTOMER_PRICES_BY_QTY_MULTIPRICES')) {      // TODO Fix the form included into a tr instead of a td
 				print '<tr><td>'.$langs->trans("PriceByQuantity").' '.$i;
-				if (!empty(getDolGlobalString('$keyforlabel'))) {
+				if (getDolGlobalString($keyforlabel)) {
 					print ' - '.$langs->trans(getDolGlobalString($keyforlabel));
 				}
 				print '</td><td colspan="2">';