diff --git a/htdocs/accountancy/class/accountancycategory.class.php b/htdocs/accountancy/class/accountancycategory.class.php
index 127e220d3d1..4cb11b78d44 100644
--- a/htdocs/accountancy/class/accountancycategory.class.php
+++ b/htdocs/accountancy/class/accountancycategory.class.php
@@ -30,7 +30,11 @@ require_once DOL_DOCUMENT_ROOT . '/core/lib/accounting.lib.php';
  */
 class AccountancyCategory 	// extends CommonObject
 {
-	public $db;							//!< To store db handler
+	/**
+     * @var DoliDB Database handler.
+     */
+    public $db;
+    
 	public $error;							//!< To return error code (or message)
 	public $errors=array();				//!< To return several error codes (or messages)
 	public $element='c_accounting_category';			//!< Id that identify managed objects
diff --git a/htdocs/core/boxes/box_last_modified_ticket.php b/htdocs/core/boxes/box_last_modified_ticket.php
index a0613d58f3e..9ce7dd91605 100644
--- a/htdocs/core/boxes/box_last_modified_ticket.php
+++ b/htdocs/core/boxes/box_last_modified_ticket.php
@@ -34,7 +34,12 @@ class box_last_modified_ticket extends ModeleBoxes
     public $boximg = "ticket";
     public $boxlabel;
     public $depends = array("ticket");
+    
+    /**
+     * @var DoliDB Database handler.
+     */
     public $db;
+    
     public $param;
     public $info_box_head = array();
     public $info_box_contents = array();
diff --git a/htdocs/core/boxes/box_last_ticket.php b/htdocs/core/boxes/box_last_ticket.php
index 2dfa71af904..a824a707168 100644
--- a/htdocs/core/boxes/box_last_ticket.php
+++ b/htdocs/core/boxes/box_last_ticket.php
@@ -34,7 +34,12 @@ class box_last_ticket extends ModeleBoxes
     public $boximg = "ticket";
     public $boxlabel;
     public $depends = array("ticket");
+    
+    /**
+     * @var DoliDB Database handler.
+     */
     public $db;
+    
     public $param;
     public $info_box_head = array();
     public $info_box_contents = array();
diff --git a/htdocs/core/class/discount.class.php b/htdocs/core/class/discount.class.php
index 9fc1921aa60..aa6c6eb9b5c 100644
--- a/htdocs/core/class/discount.class.php
+++ b/htdocs/core/class/discount.class.php
@@ -28,7 +28,11 @@
  */
 class DiscountAbsolute
 {
+    /**
+     * @var DoliDB Database handler.
+     */
     public $db;
+    
     public $error;
 
     public $id;					// Id discount
diff --git a/htdocs/core/class/html.formticket.class.php b/htdocs/core/class/html.formticket.class.php
index 9c3daefd62a..5da6f4fe439 100644
--- a/htdocs/core/class/html.formticket.class.php
+++ b/htdocs/core/class/html.formticket.class.php
@@ -39,6 +39,9 @@ if (!class_exists('FormCompany')) {
  */
 class FormTicket
 {
+    /**
+     * @var DoliDB Database handler.
+     */
     public $db;
 
     public $track_id;
diff --git a/htdocs/core/class/menubase.class.php b/htdocs/core/class/menubase.class.php
index 48880633563..e0ea1d57378 100644
--- a/htdocs/core/class/menubase.class.php
+++ b/htdocs/core/class/menubase.class.php
@@ -28,7 +28,11 @@
  */
 class Menubase
 {
-    public $db;							// To store db handler
+    /**
+     * @var DoliDB Database handler.
+     */
+    public $db;	
+    
     public $error;							// To return error code (or message)
     public $errors=array();				// To return several error codes (or messages)
 
diff --git a/htdocs/core/modules/import/modules_import.php b/htdocs/core/modules/import/modules_import.php
index 548bb128193..7c26fdb68d3 100644
--- a/htdocs/core/modules/import/modules_import.php
+++ b/htdocs/core/modules/import/modules_import.php
@@ -30,7 +30,11 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/functions.lib.php';
  */
 class ModeleImports
 {
+    /**
+     * @var DoliDB Database handler.
+     */
     public $db;
+    
     public $datatoimport;
 
     public $error='';
diff --git a/htdocs/core/triggers/interface_50_modTicket_TicketEmail.class.php b/htdocs/core/triggers/interface_50_modTicket_TicketEmail.class.php
index 3e28ea3e4ef..317cb6a22c6 100644
--- a/htdocs/core/triggers/interface_50_modTicket_TicketEmail.class.php
+++ b/htdocs/core/triggers/interface_50_modTicket_TicketEmail.class.php
@@ -30,6 +30,9 @@ require_once DOL_DOCUMENT_ROOT.'/core/triggers/dolibarrtriggers.class.php';
  */
 class InterfaceTicketEmail extends DolibarrTriggers
 {
+    /**
+     * @var DoliDB Database handler.
+     */
     public $db;
 
     /**
diff --git a/htdocs/core/triggers/interface_80_modStripe_Stripe.class.php b/htdocs/core/triggers/interface_80_modStripe_Stripe.class.php
index 79ef62675e9..ab0cd62eb82 100644
--- a/htdocs/core/triggers/interface_80_modStripe_Stripe.class.php
+++ b/htdocs/core/triggers/interface_80_modStripe_Stripe.class.php
@@ -35,6 +35,9 @@ require_once DOL_DOCUMENT_ROOT.'/core/triggers/dolibarrtriggers.class.php';
  */
 class InterfaceStripe
 {
+    /**
+     * @var DoliDB Database handler.
+     */
     public $db;
 
     /**
diff --git a/htdocs/fourn/class/fournisseur.commande.dispatch.class.php b/htdocs/fourn/class/fournisseur.commande.dispatch.class.php
index f84bc7e5f31..d957d0969cd 100644
--- a/htdocs/fourn/class/fournisseur.commande.dispatch.class.php
+++ b/htdocs/fourn/class/fournisseur.commande.dispatch.class.php
@@ -34,7 +34,11 @@ require_once DOL_DOCUMENT_ROOT."/core/class/commonobject.class.php";
  */
 class CommandeFournisseurDispatch extends CommonObject
 {
-	public $db;							//!< To store db handler
+	/**
+     * @var DoliDB Database handler.
+     */
+    public $db;	
+    
 	public $error;							//!< To return error code (or message)
 	public $errors=array();				//!< To return several error codes (or messages)
 	public $element='commandefournisseurdispatch';			//!< Id that identify managed objects
diff --git a/htdocs/ticket/class/actions_ticket.class.php b/htdocs/ticket/class/actions_ticket.class.php
index fdfe342f35d..27dbf9ff942 100644
--- a/htdocs/ticket/class/actions_ticket.class.php
+++ b/htdocs/ticket/class/actions_ticket.class.php
@@ -35,7 +35,11 @@ require_once DOL_DOCUMENT_ROOT . '/fichinter/class/fichinter.class.php';
  */
 class ActionsTicket
 {
+    /**
+     * @var DoliDB Database handler.
+     */
     public $db;
+    
     public $dao;
 
     public $mesg;
diff --git a/htdocs/ticket/class/ticketlogs.class.php b/htdocs/ticket/class/ticketlogs.class.php
index 792d5e55196..448d3cc7c41 100644
--- a/htdocs/ticket/class/ticketlogs.class.php
+++ b/htdocs/ticket/class/ticketlogs.class.php
@@ -32,7 +32,11 @@ require_once DOL_DOCUMENT_ROOT . "/core/class/commonobject.class.php";
  */
 class Ticketlogs// extends CommonObject
 {
-    public $db; //!< To store db handler
+    /**
+     * @var DoliDB Database handler.
+     */
+    public $db;
+    
     public $error; //!< To return error code (or message)
     public $errors = array(); //!< To return several error codes (or messages)