diff --git a/htdocs/accountancy/class/accountancysystem.class.php b/htdocs/accountancy/class/accountancysystem.class.php
index f14a3e7f761..53717968320 100644
--- a/htdocs/accountancy/class/accountancysystem.class.php
+++ b/htdocs/accountancy/class/accountancysystem.class.php
@@ -29,7 +29,11 @@
 class AccountancySystem
 {
 	var $db;
-	var $error;
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
+	
 	var $rowid;
 	var $fk_pcg_version;
 	var $pcg_type;
diff --git a/htdocs/accountancy/class/accountingaccount.class.php b/htdocs/accountancy/class/accountingaccount.class.php
index 257c2af0111..d8ad61dc7f1 100644
--- a/htdocs/accountancy/class/accountingaccount.class.php
+++ b/htdocs/accountancy/class/accountingaccount.class.php
@@ -46,8 +46,18 @@ class AccountingAccount extends CommonObject
 	public $restrictiononfksoc = 1;
 
 	var $db;
-	var $error;
-	var $errors;
+	
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
+	
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
+	
 	var $id;
 	var $rowid;
 	var $datec; // Creation date
diff --git a/htdocs/adherents/canvas/actions_adherentcard_common.class.php b/htdocs/adherents/canvas/actions_adherentcard_common.class.php
index f49d1cecb99..d23334ecef5 100644
--- a/htdocs/adherents/canvas/actions_adherentcard_common.class.php
+++ b/htdocs/adherents/canvas/actions_adherentcard_common.class.php
@@ -41,10 +41,16 @@ abstract class ActionsAdherentCardCommon
 	var $tpl = array();
 	//! Object container
 	var $object;
-	//! Error string
-	var $error;
-	//! Error array
-	var $errors=array();
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
+	
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
 
 
 	/**
diff --git a/htdocs/comm/action/class/cactioncomm.class.php b/htdocs/comm/action/class/cactioncomm.class.php
index d8496a9a4ff..22b7b6fa26c 100644
--- a/htdocs/comm/action/class/cactioncomm.class.php
+++ b/htdocs/comm/action/class/cactioncomm.class.php
@@ -28,7 +28,11 @@
  */
 class CActionComm
 {
-    var $error;
+    /**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
+	
     var $db;
 
     var $id;
diff --git a/htdocs/comm/mailing/class/advtargetemailing.class.php b/htdocs/comm/mailing/class/advtargetemailing.class.php
index 50d9faf0637..2b0e31930c2 100644
--- a/htdocs/comm/mailing/class/advtargetemailing.class.php
+++ b/htdocs/comm/mailing/class/advtargetemailing.class.php
@@ -30,8 +30,17 @@ class AdvanceTargetingMailing extends CommonObject
 {
 
 	var $db; //!< To store db handler
-	var $error; //!< To return error code (or message)
-	var $errors = array(); //!< To return several error codes (or messages)
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
+	
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
+	
 	var $element='advtargetemailing';			//!< Id that identify managed objects
 	var $table_element='advtargetemailing';	//!< Name of table without prefix where object is stored
 
diff --git a/htdocs/comm/mailing/class/html.formadvtargetemailing.class.php b/htdocs/comm/mailing/class/html.formadvtargetemailing.class.php
index 7408bb27d37..9fb00e8dc73 100644
--- a/htdocs/comm/mailing/class/html.formadvtargetemailing.class.php
+++ b/htdocs/comm/mailing/class/html.formadvtargetemailing.class.php
@@ -27,7 +27,10 @@
 class FormAdvTargetEmailing extends Form
 {
 	var $db;
-	var $error;
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 * Constructor
diff --git a/htdocs/compta/facture/class/paymentterm.class.php b/htdocs/compta/facture/class/paymentterm.class.php
index 3697a61672b..7e9524ad9af 100644
--- a/htdocs/compta/facture/class/paymentterm.class.php
+++ b/htdocs/compta/facture/class/paymentterm.class.php
@@ -30,7 +30,12 @@ class PaymentTerm // extends CommonObject
 {
 	var $db;							//!< To store db handler
 	var $error;							//!< To return error code (or message)
-	var $errors=array();				//!< To return several error codes (or messages)
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
+	
 	//public  $element='c_payment_term';			//!< Id that identify managed objects
 	//public  $table_element='c_payment_term';	//!< Name of table without prefix where object is stored
 	var $context =array();
diff --git a/htdocs/contact/canvas/actions_contactcard_common.class.php b/htdocs/contact/canvas/actions_contactcard_common.class.php
index ba96c865d1a..c8ef79bc72e 100644
--- a/htdocs/contact/canvas/actions_contactcard_common.class.php
+++ b/htdocs/contact/canvas/actions_contactcard_common.class.php
@@ -39,8 +39,12 @@ abstract class ActionsContactCardCommon
 	var $object;
 	//! Error string
 	var $error;
-	//! Error array
-	var $errors=array();
+	
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
 
 
 	/**
diff --git a/htdocs/core/class/antivir.class.php b/htdocs/core/class/antivir.class.php
index b5f4f0e5539..ad31c60e664 100644
--- a/htdocs/core/class/antivir.class.php
+++ b/htdocs/core/class/antivir.class.php
@@ -32,7 +32,12 @@
 class AntiVir
 {
 	var $error;
-	var $errors;
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();;
+	
 	var $output;
 	var $db;
 
diff --git a/htdocs/core/class/canvas.class.php b/htdocs/core/class/canvas.class.php
index d9c496add4f..e5b984a255d 100644
--- a/htdocs/core/class/canvas.class.php
+++ b/htdocs/core/class/canvas.class.php
@@ -30,7 +30,11 @@ class Canvas
 {
 	var $db;
 	var $error;
-	var $errors=array();
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
 
 	var $actiontype;
 
diff --git a/htdocs/core/class/ccountry.class.php b/htdocs/core/class/ccountry.class.php
index 7964510c91c..96d8ab69826 100644
--- a/htdocs/core/class/ccountry.class.php
+++ b/htdocs/core/class/ccountry.class.php
@@ -34,7 +34,12 @@ class Ccountry // extends CommonObject
 {
 	var $db;							//!< To store db handler
 	var $error;							//!< To return error code (or message)
-	var $errors=array();				//!< To return several error codes (or messages)
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
+	
 	//var $element='ccountry';			//!< Id that identify managed objects
 	//var $table_element='ccountry';	//!< Name of table without prefix where object is stored
 
diff --git a/htdocs/core/class/cstate.class.php b/htdocs/core/class/cstate.class.php
index ae2adde87d4..592962edf65 100644
--- a/htdocs/core/class/cstate.class.php
+++ b/htdocs/core/class/cstate.class.php
@@ -34,7 +34,12 @@ class Cstate // extends CommonObject
 {
 	var $db;							//!< To store db handler
 	var $error;							//!< To return error code (or message)
-	var $errors=array();				//!< To return several error codes (or messages)
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
+	
 	//var $element='cstate';			//!< Id that identify managed objects
 	//var $table_element='cstate';	    //!< Name of table without prefix where object is stored
 
diff --git a/htdocs/core/class/ctypent.class.php b/htdocs/core/class/ctypent.class.php
index b3bb750bd80..9b36ec470b4 100644
--- a/htdocs/core/class/ctypent.class.php
+++ b/htdocs/core/class/ctypent.class.php
@@ -29,7 +29,12 @@ class Ctypent // extends CommonObject
 {
 	var $db;							//!< To store db handler
 	var $error;							//!< To return error code (or message)
-	var $errors=array();				//!< To return several error codes (or messages)
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
+	
 	//var $element='ctypent';			//!< Id that identify managed objects
 	//var $table_element='ctypent';	//!< Name of table without prefix where object is stored
 
diff --git a/htdocs/core/class/dolreceiptprinter.class.php b/htdocs/core/class/dolreceiptprinter.class.php
index 2499176b58b..fbf05c99358 100644
--- a/htdocs/core/class/dolreceiptprinter.class.php
+++ b/htdocs/core/class/dolreceiptprinter.class.php
@@ -110,7 +110,11 @@ class dolReceiptPrinter extends Escpos
     var $printer;
     var $template;
     var $error;
-    var $errors;
+    /**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
 
 
 
diff --git a/htdocs/core/class/hookmanager.class.php b/htdocs/core/class/hookmanager.class.php
index 439e31caae1..11d29b7a7ad 100644
--- a/htdocs/core/class/hookmanager.class.php
+++ b/htdocs/core/class/hookmanager.class.php
@@ -31,7 +31,11 @@ class HookManager
 {
 	var $db;
 	var $error;
-	var $errors=array();
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
 
     // Context hookmanager was created for ('thirdpartycard', 'thirdpartydao', ...)
     var $contextarray=array();
diff --git a/htdocs/core/class/interfaces.class.php b/htdocs/core/class/interfaces.class.php
index 655969d73f6..e6325df8836 100644
--- a/htdocs/core/class/interfaces.class.php
+++ b/htdocs/core/class/interfaces.class.php
@@ -33,7 +33,11 @@ class Interfaces
 {
     var $db;
 	var $dir;				// Directory with all core and external triggers files
-    var $errors	= array();	// Array for errors
+    /**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
 
     /**
      *	Constructor
diff --git a/htdocs/core/class/notify.class.php b/htdocs/core/class/notify.class.php
index 1cd676fe70b..c9d04b93dde 100644
--- a/htdocs/core/class/notify.class.php
+++ b/htdocs/core/class/notify.class.php
@@ -33,7 +33,11 @@ class Notify
 	var $id;
 	var $db;
 	var $error;
-	var $errors=array();
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
 
 	var $author;
 	var $ref;
diff --git a/htdocs/core/modules/action/modules_action.php b/htdocs/core/modules/action/modules_action.php
index 2971b6f59ee..d4c55ce6bdc 100644
--- a/htdocs/core/modules/action/modules_action.php
+++ b/htdocs/core/modules/action/modules_action.php
@@ -28,7 +28,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/commondocgenerator.class.php';
  */
 abstract class ModeleAction extends CommonDocGenerator
 {
-    var $error='';
+    /**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
     /**
      *  Return list of active generation modules
diff --git a/htdocs/core/modules/bank/modules_bank.php b/htdocs/core/modules/bank/modules_bank.php
index b0a121d7dc5..703f61cda10 100644
--- a/htdocs/core/modules/bank/modules_bank.php
+++ b/htdocs/core/modules/bank/modules_bank.php
@@ -31,7 +31,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/commondocgenerator.class.php';
  */
 abstract class ModeleBankAccountDoc extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
diff --git a/htdocs/core/modules/barcode/doc/phpbarcode.modules.php b/htdocs/core/modules/barcode/doc/phpbarcode.modules.php
index d04c6a70c04..86c292ee80d 100644
--- a/htdocs/core/modules/barcode/doc/phpbarcode.modules.php
+++ b/htdocs/core/modules/barcode/doc/phpbarcode.modules.php
@@ -33,7 +33,11 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/barcode.lib.php';    // This is to inc
 class modPhpbarcode extends ModeleBarCode
 {
 	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
-	var $error='';
+	
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
diff --git a/htdocs/core/modules/barcode/doc/tcpdfbarcode.modules.php b/htdocs/core/modules/barcode/doc/tcpdfbarcode.modules.php
index 5b9422b15e7..741c247579d 100644
--- a/htdocs/core/modules/barcode/doc/tcpdfbarcode.modules.php
+++ b/htdocs/core/modules/barcode/doc/tcpdfbarcode.modules.php
@@ -32,7 +32,12 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/barcode.lib.php';	   // This is to inc
 class modTcpdfbarcode extends ModeleBarCode
 {
 	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
-	var $error='';
+	
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
+	
 	var $is2d = false;
 	
 	/**
diff --git a/htdocs/core/modules/barcode/modules_barcode.class.php b/htdocs/core/modules/barcode/modules_barcode.class.php
index 4720ffb1341..279a5f0abf8 100644
--- a/htdocs/core/modules/barcode/modules_barcode.class.php
+++ b/htdocs/core/modules/barcode/modules_barcode.class.php
@@ -29,7 +29,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/functions.lib.php';
  */
 abstract class ModeleBarCode
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -50,7 +53,10 @@ abstract class ModeleBarCode
  */
 abstract class ModeleNumRefBarCode
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
     /**     Return default description of numbering model
      *
diff --git a/htdocs/core/modules/cheque/mod_chequereceipt_mint.php b/htdocs/core/modules/cheque/mod_chequereceipt_mint.php
index 680357ce9bb..8906bdcc14f 100644
--- a/htdocs/core/modules/cheque/mod_chequereceipt_mint.php
+++ b/htdocs/core/modules/cheque/mod_chequereceipt_mint.php
@@ -31,7 +31,10 @@ class mod_chequereceipt_mint extends ModeleNumRefChequeReceipts
 {
 	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
 	var $prefix='CHK';
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 	var $name='Mint';
 
 
diff --git a/htdocs/core/modules/cheque/modules_chequereceipts.php b/htdocs/core/modules/cheque/modules_chequereceipts.php
index bbf20761f5f..6d9e359c859 100644
--- a/htdocs/core/modules/cheque/modules_chequereceipts.php
+++ b/htdocs/core/modules/cheque/modules_chequereceipts.php
@@ -36,7 +36,10 @@ require_once DOL_DOCUMENT_ROOT.'/compta/bank/class/account.class.php';   // Requ
  */
 abstract class ModeleNumRefChequeReceipts
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 *	Return if a module can be used or not
@@ -119,7 +122,10 @@ abstract class ModeleNumRefChequeReceipts
  */
 abstract class ModeleChequeReceipts extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 *  Return list of active generation modules
diff --git a/htdocs/core/modules/commande/mod_commande_marbre.php b/htdocs/core/modules/commande/mod_commande_marbre.php
index 9941811006b..69c25f73d68 100644
--- a/htdocs/core/modules/commande/mod_commande_marbre.php
+++ b/htdocs/core/modules/commande/mod_commande_marbre.php
@@ -31,7 +31,10 @@ class mod_commande_marbre extends ModeleNumRefCommandes
 {
 	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
 	var $prefix='CO';
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 	var $nom='Marbre';
 
 
diff --git a/htdocs/core/modules/commande/modules_commande.php b/htdocs/core/modules/commande/modules_commande.php
index aa6da728f56..1e58104c9ca 100644
--- a/htdocs/core/modules/commande/modules_commande.php
+++ b/htdocs/core/modules/commande/modules_commande.php
@@ -39,7 +39,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/discount.class.php';
  */
 abstract class ModelePDFCommandes extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 *  Return list of active generation modules
@@ -71,7 +74,10 @@ abstract class ModelePDFCommandes extends CommonDocGenerator
 
 abstract class ModeleNumRefCommandes
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 *	Return if a module can be used or not
diff --git a/htdocs/core/modules/contract/mod_contract_serpis.php b/htdocs/core/modules/contract/mod_contract_serpis.php
index 5dcb8a72baa..1f85e4d57fc 100644
--- a/htdocs/core/modules/contract/mod_contract_serpis.php
+++ b/htdocs/core/modules/contract/mod_contract_serpis.php
@@ -30,7 +30,10 @@ class mod_contract_serpis extends ModelNumRefContracts
 {
 	var $version='dolibarr';
 	var $prefix='CT';
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 	var $nom='Serpis';
 	var $code_auto=1;
 
diff --git a/htdocs/core/modules/contract/modules_contract.php b/htdocs/core/modules/contract/modules_contract.php
index 47a882b7b56..f0af2e7f78a 100644
--- a/htdocs/core/modules/contract/modules_contract.php
+++ b/htdocs/core/modules/contract/modules_contract.php
@@ -37,7 +37,10 @@
  */
 abstract class ModelePDFContract extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -67,7 +70,10 @@ abstract class ModelePDFContract extends CommonDocGenerator
  */
 class ModelNumRefContracts
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 *	Return if a module can be used or not
diff --git a/htdocs/core/modules/dons/modules_don.php b/htdocs/core/modules/dons/modules_don.php
index 4949cce94e1..f2cba175a60 100644
--- a/htdocs/core/modules/dons/modules_don.php
+++ b/htdocs/core/modules/dons/modules_don.php
@@ -34,7 +34,10 @@ require_once DOL_DOCUMENT_ROOT.'/don/class/don.class.php';
  */
 abstract class ModeleDon extends CommonDocGenerator
 {
-    var $error='';
+    /**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
     /**
      *  Return list of active generation modules
@@ -63,7 +66,10 @@ abstract class ModeleDon extends CommonDocGenerator
  */
 abstract class ModeleNumRefDons
 {
-    var $error='';
+    /**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
     /**
      * 	Return if a module can be used or not
diff --git a/htdocs/core/modules/expedition/mod_expedition_safor.php b/htdocs/core/modules/expedition/mod_expedition_safor.php
index 826ba6665c4..e9e0adc7e39 100644
--- a/htdocs/core/modules/expedition/mod_expedition_safor.php
+++ b/htdocs/core/modules/expedition/mod_expedition_safor.php
@@ -30,7 +30,10 @@ class mod_expedition_safor extends ModelNumRefExpedition
 {
 	var $version='dolibarr';
 	var $prefix='SH';
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 	var $nom='Safor';
 
 
diff --git a/htdocs/core/modules/expedition/modules_expedition.php b/htdocs/core/modules/expedition/modules_expedition.php
index f46fa33c5f1..0fc12428d62 100644
--- a/htdocs/core/modules/expedition/modules_expedition.php
+++ b/htdocs/core/modules/expedition/modules_expedition.php
@@ -36,7 +36,10 @@
  */
 abstract class ModelePdfExpedition extends CommonDocGenerator
 {
-    var $error='';
+    /**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -66,7 +69,10 @@ abstract class ModelePdfExpedition extends CommonDocGenerator
  */
 abstract class ModelNumRefExpedition
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/** Return if a model can be used or not
 	 *
diff --git a/htdocs/core/modules/expensereport/mod_expensereport_jade.php b/htdocs/core/modules/expensereport/mod_expensereport_jade.php
index c6153d422eb..b1e01d40bb9 100644
--- a/htdocs/core/modules/expensereport/mod_expensereport_jade.php
+++ b/htdocs/core/modules/expensereport/mod_expensereport_jade.php
@@ -30,7 +30,10 @@ class mod_expensereport_jade extends ModeleNumRefExpenseReport
 {
 	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
 	var $prefix='ER';
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 	var $nom='Jade';
 
 
diff --git a/htdocs/core/modules/expensereport/modules_expensereport.php b/htdocs/core/modules/expensereport/modules_expensereport.php
index e97766b38f6..f60899eee0a 100644
--- a/htdocs/core/modules/expensereport/modules_expensereport.php
+++ b/htdocs/core/modules/expensereport/modules_expensereport.php
@@ -23,7 +23,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/commondocgenerator.class.php';
  */
 abstract class ModeleExpenseReport extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -73,7 +76,10 @@ function expensereport_pdf_create(DoliDB $db, ExpenseReport $object, $message, $
 
 abstract class ModeleNumRefExpenseReport
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 *	Return if a module can be used or not
diff --git a/htdocs/core/modules/export/modules_export.php b/htdocs/core/modules/export/modules_export.php
index 5d7e0ecac84..c154420f554 100644
--- a/htdocs/core/modules/export/modules_export.php
+++ b/htdocs/core/modules/export/modules_export.php
@@ -30,7 +30,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/commondocgenerator.class.php';
  */
 class ModeleExports extends CommonDocGenerator    // This class can't be abstract as there is instance propreties loaded by liste_modeles
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	var $driverlabel=array();
 	var $driverversion=array();
diff --git a/htdocs/core/modules/facture/mod_facture_mars.php b/htdocs/core/modules/facture/mod_facture_mars.php
index 831dce5d3e4..c6bba0a6232 100644
--- a/htdocs/core/modules/facture/mod_facture_mars.php
+++ b/htdocs/core/modules/facture/mod_facture_mars.php
@@ -35,7 +35,10 @@ class mod_facture_mars extends ModeleNumRefFactures
 	var $prefixreplacement='FR';
 	var $prefixdeposit='AC';
 	var $prefixcreditnote='AV';
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
diff --git a/htdocs/core/modules/facture/mod_facture_terre.php b/htdocs/core/modules/facture/mod_facture_terre.php
index 174d8314784..53ae127b734 100644
--- a/htdocs/core/modules/facture/mod_facture_terre.php
+++ b/htdocs/core/modules/facture/mod_facture_terre.php
@@ -33,7 +33,10 @@ class mod_facture_terre extends ModeleNumRefFactures
 	var $prefixinvoice='FA';
 	var $prefixcreditnote='AV';
 	var $prefixdeposit='AC';
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
diff --git a/htdocs/core/modules/facture/modules_facture.php b/htdocs/core/modules/facture/modules_facture.php
index b5d9a2397cc..47b4506bdb4 100644
--- a/htdocs/core/modules/facture/modules_facture.php
+++ b/htdocs/core/modules/facture/modules_facture.php
@@ -37,7 +37,10 @@ require_once DOL_DOCUMENT_ROOT.'/compta/bank/class/account.class.php';   // Requ
  */
 abstract class ModelePDFFactures extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 *  Return list of active generation modules
@@ -65,7 +68,10 @@ abstract class ModelePDFFactures extends CommonDocGenerator
  */
 abstract class ModeleNumRefFactures
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 * Return if a module can be used or not
diff --git a/htdocs/core/modules/fichinter/mod_pacific.php b/htdocs/core/modules/fichinter/mod_pacific.php
index 7e60a6aed4b..2461d8a074d 100644
--- a/htdocs/core/modules/fichinter/mod_pacific.php
+++ b/htdocs/core/modules/fichinter/mod_pacific.php
@@ -32,7 +32,10 @@ class mod_pacific extends ModeleNumRefFicheinter
 {
     var $version='dolibarr';        // 'development', 'experimental', 'dolibarr'
 	var $prefix='FI';
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 	var $nom = 'pacific';
 
 
diff --git a/htdocs/core/modules/fichinter/modules_fichinter.php b/htdocs/core/modules/fichinter/modules_fichinter.php
index 8bcb2990bdb..619f2b888bc 100644
--- a/htdocs/core/modules/fichinter/modules_fichinter.php
+++ b/htdocs/core/modules/fichinter/modules_fichinter.php
@@ -34,7 +34,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/commondocgenerator.class.php';
  */
 abstract class ModelePDFFicheinter extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -64,7 +67,10 @@ abstract class ModelePDFFicheinter extends CommonDocGenerator
  */
 abstract class ModeleNumRefFicheinter
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 * 	Return if a module can be used or not
diff --git a/htdocs/core/modules/holiday/mod_holiday_madonna.php b/htdocs/core/modules/holiday/mod_holiday_madonna.php
index 3b77230f77f..9031c31036d 100644
--- a/htdocs/core/modules/holiday/mod_holiday_madonna.php
+++ b/htdocs/core/modules/holiday/mod_holiday_madonna.php
@@ -31,7 +31,10 @@ class mod_holiday_madonna extends ModelNumRefHolidays
 {
 	var $version='dolibarr';
 	var $prefix='HL';
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 	var $nom='Madonna';
 	var $code_auto=1;
 
diff --git a/htdocs/core/modules/holiday/modules_holiday.php b/htdocs/core/modules/holiday/modules_holiday.php
index 901a7531cbe..6449f48d96f 100644
--- a/htdocs/core/modules/holiday/modules_holiday.php
+++ b/htdocs/core/modules/holiday/modules_holiday.php
@@ -38,7 +38,10 @@
  */
 abstract class ModelePDFHoliday extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -68,7 +71,10 @@ abstract class ModelePDFHoliday extends CommonDocGenerator
  */
 class ModelNumRefHolidays
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 *	Return if a module can be used or not
diff --git a/htdocs/core/modules/import/import_csv.modules.php b/htdocs/core/modules/import/import_csv.modules.php
index a6473eaeb8e..aeaa6e58db2 100644
--- a/htdocs/core/modules/import/import_csv.modules.php
+++ b/htdocs/core/modules/import/import_csv.modules.php
@@ -36,8 +36,16 @@ class ImportCsv extends ModeleImports
     var $db;
     var $datatoimport;
 
-	var $error='';
-	var $errors=array();
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
+	
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
 
     var $id;           // Id of driver
 	var $label;        // Label of driver
diff --git a/htdocs/core/modules/import/import_xlsx.modules.php b/htdocs/core/modules/import/import_xlsx.modules.php
index 7f222f523ca..0c610f469b0 100644
--- a/htdocs/core/modules/import/import_xlsx.modules.php
+++ b/htdocs/core/modules/import/import_xlsx.modules.php
@@ -36,8 +36,16 @@ class ImportXlsx extends ModeleImports
     var $db;
     var $datatoimport;
 
-	var $error='';
-	var $errors=array();
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
+	
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
 
     var $id;           // Id of driver
 	var $label;        // Label of driver
diff --git a/htdocs/core/modules/livraison/modules_livraison.php b/htdocs/core/modules/livraison/modules_livraison.php
index a433f42930d..13d83939afb 100644
--- a/htdocs/core/modules/livraison/modules_livraison.php
+++ b/htdocs/core/modules/livraison/modules_livraison.php
@@ -36,7 +36,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/commondocgenerator.class.php';
  */
 abstract class ModelePDFDeliveryOrder extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 *  Return list of active generation modules
@@ -67,7 +70,10 @@ abstract class ModelePDFDeliveryOrder extends CommonDocGenerator
  */
 abstract class ModeleNumRefDeliveryOrder
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 * Return if a module can be used or not
diff --git a/htdocs/core/modules/member/modules_cards.php b/htdocs/core/modules/member/modules_cards.php
index f7ef8b94590..4e3e1a2dac4 100644
--- a/htdocs/core/modules/member/modules_cards.php
+++ b/htdocs/core/modules/member/modules_cards.php
@@ -34,7 +34,10 @@ require_once DOL_DOCUMENT_ROOT.'/product/class/product.class.php';
  */
 class ModelePDFCards
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
diff --git a/htdocs/core/modules/payment/mod_payment_cicada.php b/htdocs/core/modules/payment/mod_payment_cicada.php
index 8fc05b6cdd8..5111d0fc9be 100644
--- a/htdocs/core/modules/payment/mod_payment_cicada.php
+++ b/htdocs/core/modules/payment/mod_payment_cicada.php
@@ -31,7 +31,10 @@ class mod_payment_cicada extends ModeleNumRefPayments
 {
 	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
 	var $prefix='PAY';
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 	var $nom='Cicada';
 
 
diff --git a/htdocs/core/modules/payment/modules_payment.php b/htdocs/core/modules/payment/modules_payment.php
index c9023a9fc65..d9cf9b1260f 100644
--- a/htdocs/core/modules/payment/modules_payment.php
+++ b/htdocs/core/modules/payment/modules_payment.php
@@ -23,7 +23,10 @@
 
 abstract class ModeleNumRefPayments
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 *	Return if a module can be used or not
diff --git a/htdocs/core/modules/printing/printgcp.modules.php b/htdocs/core/modules/printing/printgcp.modules.php
index 7cda95174c2..8e4eafeb7b8 100644
--- a/htdocs/core/modules/printing/printgcp.modules.php
+++ b/htdocs/core/modules/printing/printgcp.modules.php
@@ -43,7 +43,12 @@ class printing_printgcp extends PrintingDriver
     var $google_id = '';
     var $google_secret = '';
     var $error;
-    var $errors = array();
+    /**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
+	
     var $db;
 
     private $OAUTH_SERVICENAME_GOOGLE = 'Google';
diff --git a/htdocs/core/modules/printing/printipp.modules.php b/htdocs/core/modules/printing/printipp.modules.php
index 94d14426b55..168c411ec29 100644
--- a/htdocs/core/modules/printing/printipp.modules.php
+++ b/htdocs/core/modules/printing/printipp.modules.php
@@ -41,7 +41,12 @@ class printing_printipp extends PrintingDriver
     var $user;
     var $password;
     var $error;
-    var $errors = array();
+    /**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
+	
     var $db;
 
 
diff --git a/htdocs/core/modules/printsheet/modules_labels.php b/htdocs/core/modules/printsheet/modules_labels.php
index bac32ec45d2..047d7aeed76 100644
--- a/htdocs/core/modules/printsheet/modules_labels.php
+++ b/htdocs/core/modules/printsheet/modules_labels.php
@@ -34,7 +34,10 @@ require_once DOL_DOCUMENT_ROOT.'/product/class/product.class.php';
  */
 class ModelePDFLabels
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
diff --git a/htdocs/core/modules/product/modules_product.class.php b/htdocs/core/modules/product/modules_product.class.php
index 83fc444f258..3b0324a8460 100644
--- a/htdocs/core/modules/product/modules_product.class.php
+++ b/htdocs/core/modules/product/modules_product.class.php
@@ -33,7 +33,10 @@
  */
 abstract class ModelePDFProduct extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -58,7 +61,10 @@ abstract class ModelePDFProduct extends CommonDocGenerator
 
 abstract class ModeleProductCode
 {
-    var $error='';
+    /**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
     /**     Renvoi la description par defaut du modele de numerotation
      *
diff --git a/htdocs/core/modules/product_batch/modules_product_batch.class.php b/htdocs/core/modules/product_batch/modules_product_batch.class.php
index 94818d17531..df94c98871f 100644
--- a/htdocs/core/modules/product_batch/modules_product_batch.class.php
+++ b/htdocs/core/modules/product_batch/modules_product_batch.class.php
@@ -38,7 +38,10 @@
  */
 abstract class ModelePDFProductBatch extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
diff --git a/htdocs/core/modules/project/mod_project_simple.php b/htdocs/core/modules/project/mod_project_simple.php
index 05256a3e61f..ccf4de57d5a 100644
--- a/htdocs/core/modules/project/mod_project_simple.php
+++ b/htdocs/core/modules/project/mod_project_simple.php
@@ -33,7 +33,10 @@ class mod_project_simple extends ModeleNumRefProjects
 {
 	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
 	var $prefix='PJ';
-    var $error='';
+    /**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 	var $nom = "Simple";
 	var $name = "Simple";
 
diff --git a/htdocs/core/modules/project/modules_project.php b/htdocs/core/modules/project/modules_project.php
index 5f7ef3d5756..898cb202744 100644
--- a/htdocs/core/modules/project/modules_project.php
+++ b/htdocs/core/modules/project/modules_project.php
@@ -31,7 +31,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/commondocgenerator.class.php';
  */
 abstract class ModelePDFProjects extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -62,7 +65,10 @@ abstract class ModelePDFProjects extends CommonDocGenerator
  */
 abstract class ModeleNumRefProjects
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 *  Return if a module can be used or not
diff --git a/htdocs/core/modules/project/task/mod_task_simple.php b/htdocs/core/modules/project/task/mod_task_simple.php
index 1a0aa3e3445..55ecf2db518 100644
--- a/htdocs/core/modules/project/task/mod_task_simple.php
+++ b/htdocs/core/modules/project/task/mod_task_simple.php
@@ -33,7 +33,10 @@ class mod_task_simple extends ModeleNumRefTask
 {
 	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
 	var $prefix='TK';
-    var $error='';
+    /**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 	var $nom = "Simple";
 	var $name = "Simple";
 
diff --git a/htdocs/core/modules/project/task/modules_task.php b/htdocs/core/modules/project/task/modules_task.php
index 7d14ae12a3e..11fa9b38326 100644
--- a/htdocs/core/modules/project/task/modules_task.php
+++ b/htdocs/core/modules/project/task/modules_task.php
@@ -32,7 +32,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/commondocgenerator.class.php';
  */
 abstract class ModelePDFTask extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -63,7 +66,10 @@ abstract class ModelePDFTask extends CommonDocGenerator
  */
 abstract class ModeleNumRefTask
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 *  Return if a module can be used or not
diff --git a/htdocs/core/modules/propale/mod_propale_marbre.php b/htdocs/core/modules/propale/mod_propale_marbre.php
index 0e1700da500..cac76d47b5a 100644
--- a/htdocs/core/modules/propale/mod_propale_marbre.php
+++ b/htdocs/core/modules/propale/mod_propale_marbre.php
@@ -33,7 +33,10 @@ class mod_propale_marbre extends ModeleNumRefPropales
 {
 	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
 	var $prefix='PR';
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 	var $nom = "Marbre";
 
 
diff --git a/htdocs/core/modules/propale/modules_propale.php b/htdocs/core/modules/propale/modules_propale.php
index c2d52923e4f..55f7a028e23 100644
--- a/htdocs/core/modules/propale/modules_propale.php
+++ b/htdocs/core/modules/propale/modules_propale.php
@@ -36,7 +36,10 @@ require_once DOL_DOCUMENT_ROOT.'/compta/bank/class/account.class.php';   // Requ
  */
 abstract class ModelePDFPropales extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -66,7 +69,10 @@ abstract class ModelePDFPropales extends CommonDocGenerator
  */
 abstract class ModeleNumRefPropales
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 * Return if a module can be used or not
diff --git a/htdocs/core/modules/security/generate/modules_genpassword.php b/htdocs/core/modules/security/generate/modules_genpassword.php
index 3129a341926..60378cf03a4 100644
--- a/htdocs/core/modules/security/generate/modules_genpassword.php
+++ b/htdocs/core/modules/security/generate/modules_genpassword.php
@@ -30,7 +30,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/functions.lib.php';
  */
 abstract class ModeleGenPassword
 {
-    var $error='';
+    /**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
     /**
      * 		Return if a module can be used or not
diff --git a/htdocs/core/modules/societe/modules_societe.class.php b/htdocs/core/modules/societe/modules_societe.class.php
index 0ed5eace2e2..c5a1901635b 100644
--- a/htdocs/core/modules/societe/modules_societe.class.php
+++ b/htdocs/core/modules/societe/modules_societe.class.php
@@ -33,7 +33,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/commondocgenerator.class.php';
  */
 abstract class ModeleThirdPartyDoc extends CommonDocGenerator
 {
-    var $error='';
+    /**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
     /**
      *  Return list of active generation modules
@@ -63,7 +66,10 @@ abstract class ModeleThirdPartyDoc extends CommonDocGenerator
  */
 abstract class ModeleThirdPartyCode
 {
-    var $error='';
+    /**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
     /**     Renvoi la description par defaut du modele de numerotation
      *
@@ -255,7 +261,10 @@ abstract class ModeleThirdPartyCode
  */
 abstract class ModeleAccountancyCode
 {
-    var $error='';
+    /**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
     /**		Return description of module
diff --git a/htdocs/core/modules/stock/modules_movement.php b/htdocs/core/modules/stock/modules_movement.php
index 806f500dab7..4009d235b59 100644
--- a/htdocs/core/modules/stock/modules_movement.php
+++ b/htdocs/core/modules/stock/modules_movement.php
@@ -30,7 +30,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/commondocgenerator.class.php';
  */
 abstract class ModelePDFMovement extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
diff --git a/htdocs/core/modules/stock/modules_stock.php b/htdocs/core/modules/stock/modules_stock.php
index a0740b50f54..a5e0c2e5d7f 100644
--- a/htdocs/core/modules/stock/modules_stock.php
+++ b/htdocs/core/modules/stock/modules_stock.php
@@ -23,7 +23,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/commondocgenerator.class.php';
  */
 abstract class ModelePDFStock extends CommonDocGenerator
 {
-    var $error='';
+    /**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
     /**
diff --git a/htdocs/core/modules/supplier_invoice/modules_facturefournisseur.php b/htdocs/core/modules/supplier_invoice/modules_facturefournisseur.php
index 7762d8ce6a5..edc3f3c7428 100644
--- a/htdocs/core/modules/supplier_invoice/modules_facturefournisseur.php
+++ b/htdocs/core/modules/supplier_invoice/modules_facturefournisseur.php
@@ -34,7 +34,10 @@ require_once DOL_DOCUMENT_ROOT.'/compta/bank/class/account.class.php';	// requir
  */
 abstract class ModelePDFSuppliersInvoices extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -64,7 +67,10 @@ abstract class ModelePDFSuppliersInvoices extends CommonDocGenerator
  */
 abstract class ModeleNumRefSuppliersInvoices
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**  Return if a model can be used or not
 	 *
diff --git a/htdocs/core/modules/supplier_order/modules_commandefournisseur.php b/htdocs/core/modules/supplier_order/modules_commandefournisseur.php
index 4bd262d67fb..d20229fd650 100644
--- a/htdocs/core/modules/supplier_order/modules_commandefournisseur.php
+++ b/htdocs/core/modules/supplier_order/modules_commandefournisseur.php
@@ -37,7 +37,10 @@ require_once DOL_DOCUMENT_ROOT.'/compta/bank/class/account.class.php';	// requir
  */
 abstract class ModelePDFSuppliersOrders extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -69,7 +72,10 @@ abstract class ModelePDFSuppliersOrders extends CommonDocGenerator
  */
 abstract class ModeleNumRefSuppliersOrders
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**  Return if a model can be used or not
 	 *
diff --git a/htdocs/core/modules/supplier_payment/mod_supplier_payment_bronan.php b/htdocs/core/modules/supplier_payment/mod_supplier_payment_bronan.php
index 9b0012ec089..94521f99c5e 100644
--- a/htdocs/core/modules/supplier_payment/mod_supplier_payment_bronan.php
+++ b/htdocs/core/modules/supplier_payment/mod_supplier_payment_bronan.php
@@ -31,7 +31,10 @@ class mod_supplier_payment_bronan extends ModeleNumRefSupplierPayments
 {
 	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
 	var $prefix='SPAY';
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 	var $nom='Bronan';
 
 
diff --git a/htdocs/core/modules/supplier_payment/modules_supplier_payment.php b/htdocs/core/modules/supplier_payment/modules_supplier_payment.php
index 56c5bd94ae0..7a6e26e770b 100644
--- a/htdocs/core/modules/supplier_payment/modules_supplier_payment.php
+++ b/htdocs/core/modules/supplier_payment/modules_supplier_payment.php
@@ -22,7 +22,10 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/commondocgenerator.class.php';
  */
 abstract class ModelePDFSuppliersPayments extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -54,7 +57,10 @@ abstract class ModelePDFSuppliersPayments extends CommonDocGenerator
 
 abstract class ModeleNumRefSupplierPayments
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 *	Return if a module can be used or not
diff --git a/htdocs/core/modules/supplier_proposal/mod_supplier_proposal_marbre.php b/htdocs/core/modules/supplier_proposal/mod_supplier_proposal_marbre.php
index fa8cf6c6460..372b3189292 100644
--- a/htdocs/core/modules/supplier_proposal/mod_supplier_proposal_marbre.php
+++ b/htdocs/core/modules/supplier_proposal/mod_supplier_proposal_marbre.php
@@ -33,7 +33,10 @@ class mod_supplier_proposal_marbre extends ModeleNumRefSupplierProposal
 {
 	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
 	var $prefix='RQ';               // RQ = Request for quotation
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 	var $nom = "Marbre";
 
 
diff --git a/htdocs/core/modules/supplier_proposal/modules_supplier_proposal.php b/htdocs/core/modules/supplier_proposal/modules_supplier_proposal.php
index b324a1b03a8..13ca149fde8 100644
--- a/htdocs/core/modules/supplier_proposal/modules_supplier_proposal.php
+++ b/htdocs/core/modules/supplier_proposal/modules_supplier_proposal.php
@@ -36,7 +36,10 @@ require_once DOL_DOCUMENT_ROOT.'/compta/bank/class/account.class.php';   // Requ
  */
 abstract class ModelePDFSupplierProposal extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
@@ -66,7 +69,10 @@ abstract class ModelePDFSupplierProposal extends CommonDocGenerator
  */
 abstract class ModeleNumRefSupplierProposal
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 	/**
 	 * Return if a module can be used or not
diff --git a/htdocs/core/modules/user/modules_user.class.php b/htdocs/core/modules/user/modules_user.class.php
index 3e94ece9372..33844eb938c 100644
--- a/htdocs/core/modules/user/modules_user.class.php
+++ b/htdocs/core/modules/user/modules_user.class.php
@@ -38,7 +38,10 @@
  */
 abstract class ModelePDFUser extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
diff --git a/htdocs/core/modules/usergroup/modules_usergroup.class.php b/htdocs/core/modules/usergroup/modules_usergroup.class.php
index 26edb08d57c..d6735de5cad 100644
--- a/htdocs/core/modules/usergroup/modules_usergroup.class.php
+++ b/htdocs/core/modules/usergroup/modules_usergroup.class.php
@@ -38,7 +38,10 @@
  */
 abstract class ModelePDFUserGroup extends CommonDocGenerator
 {
-	var $error='';
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
 
 
 	/**
diff --git a/htdocs/imports/class/import.class.php b/htdocs/imports/class/import.class.php
index f8754193515..bc4873770fd 100644
--- a/htdocs/imports/class/import.class.php
+++ b/htdocs/imports/class/import.class.php
@@ -44,7 +44,11 @@ class Import
 	var $array_import_run_sql_after;
 
 	var $error;
-	var $errors;
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
 
 
 	/**
diff --git a/htdocs/product/dynamic_price/class/price_expression.class.php b/htdocs/product/dynamic_price/class/price_expression.class.php
index 5ce3068c144..c5bf6808fac 100644
--- a/htdocs/product/dynamic_price/class/price_expression.class.php
+++ b/htdocs/product/dynamic_price/class/price_expression.class.php
@@ -31,7 +31,12 @@ class PriceExpression
 {
 	var $db;							//!< To store db handler
 	var $error;							//!< To return error code (or message)
-	var $errors=array();				//!< To return several error codes (or messages)
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
+	
     var $id;
     var $title;
 	var $expression;
diff --git a/htdocs/product/dynamic_price/class/price_global_variable.class.php b/htdocs/product/dynamic_price/class/price_global_variable.class.php
index 97a3ee1f4e6..1432afcfdeb 100644
--- a/htdocs/product/dynamic_price/class/price_global_variable.class.php
+++ b/htdocs/product/dynamic_price/class/price_global_variable.class.php
@@ -31,7 +31,12 @@ class PriceGlobalVariable
 {
     var $db;							//!< To store db handler
     var $error;							//!< To return error code (or message)
-    var $errors=array();				//!< To return several error codes (or messages)
+    /**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
+	
     var $id;
     var $code;
     var $description;
diff --git a/htdocs/product/dynamic_price/class/price_global_variable_updater.class.php b/htdocs/product/dynamic_price/class/price_global_variable_updater.class.php
index f4595062098..37a3e116683 100644
--- a/htdocs/product/dynamic_price/class/price_global_variable_updater.class.php
+++ b/htdocs/product/dynamic_price/class/price_global_variable_updater.class.php
@@ -31,7 +31,12 @@ class PriceGlobalVariableUpdater
 {
     var $db;							//!< To store db handler
     var $error;							//!< To return error code (or message)
-    var $errors=array();				//!< To return several error codes (or messages)
+    /**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
+	
     var $types=array(0, 1);				//!< Updater types
     var $update_min = 5;				//!< Minimal update rate
     var $id;
diff --git a/htdocs/projet/tasks/comment.php b/htdocs/projet/tasks/comment.php
index 6c4b7f56d3f..c1b6c1b2848 100644
--- a/htdocs/projet/tasks/comment.php
+++ b/htdocs/projet/tasks/comment.php
@@ -278,6 +278,6 @@ if ($id > 0 || ! empty($ref))
 	}
 }
 
-
+// End of page
 llxFooter();
 $db->close();
diff --git a/htdocs/public/test/test_forms.php b/htdocs/public/test/test_forms.php
index 0250bb2c39f..614b10c976a 100644
--- a/htdocs/public/test/test_forms.php
+++ b/htdocs/public/test/test_forms.php
@@ -94,6 +94,6 @@ $array=array(1=>'Value 1',2=>'Value 2',3=>'Value 3');
 $arrayselected=array(1,3);
 print $form->multiselectarray('testmulti', $array, $arrayselected, '', 0, '', 0, 250);
 
-
+// End of page
 llxFooter();
 $db->close();
diff --git a/htdocs/resource/card.php b/htdocs/resource/card.php
index e4a21ae9888..5ba98ae9f69 100644
--- a/htdocs/resource/card.php
+++ b/htdocs/resource/card.php
@@ -401,8 +401,6 @@ else {
 	dol_print_error();
 }
 
-
-
 // End of page
 llxFooter();
 $db->close();
diff --git a/htdocs/resource/element_resource.php b/htdocs/resource/element_resource.php
index b844fce0f6c..adbd8eec87f 100644
--- a/htdocs/resource/element_resource.php
+++ b/htdocs/resource/element_resource.php
@@ -473,6 +473,6 @@ else
 	}
 }
 
+// End of page
 llxFooter();
-
 $db->close();
diff --git a/htdocs/societe/canvas/actions_card_common.class.php b/htdocs/societe/canvas/actions_card_common.class.php
index 37082f4140b..15383883e97 100644
--- a/htdocs/societe/canvas/actions_card_common.class.php
+++ b/htdocs/societe/canvas/actions_card_common.class.php
@@ -37,10 +37,17 @@ abstract class ActionsCardCommon
 	var $tpl = array();
 	//! Object container
 	var $object;
-	//! Error string
-	var $error;
-	//! Error array
-	var $errors=array();
+	
+	/**
+	 * @var string Error code (or message)
+	 */
+	public $error='';
+	
+	/**
+	 *
+	 * @var string[] Error codes (or messages)
+	 */
+	public $errors = array ();
 
 
 	/**
diff --git a/htdocs/stripe/payment.php b/htdocs/stripe/payment.php
index 8ad547a47ee..f0c950d85ac 100644
--- a/htdocs/stripe/payment.php
+++ b/htdocs/stripe/payment.php
@@ -1113,6 +1113,6 @@ if (! GETPOST('action'))
     }
 }
 
+// End of page
 llxFooter();
-
 $db->close();
diff --git a/htdocs/variants/generator.php b/htdocs/variants/generator.php
index 35cd9fc2a24..b5498aa78ef 100644
--- a/htdocs/variants/generator.php
+++ b/htdocs/variants/generator.php
@@ -374,5 +374,7 @@ if (! empty($id) || ! empty($ref)) {
 
 	<?php
 
-	llxFooter();
+	// End of page
+    llxFooter();
+    $db->close();
 }
\ No newline at end of file
diff --git a/htdocs/website/websiteaccount_card.php b/htdocs/website/websiteaccount_card.php
index 0bc4428deb2..49009d8f4e7 100644
--- a/htdocs/website/websiteaccount_card.php
+++ b/htdocs/website/websiteaccount_card.php
@@ -382,7 +382,6 @@ if ($object->id > 0 && (empty($action) || ($action != 'edit' && $action != 'crea
 	include DOL_DOCUMENT_ROOT.'/core/tpl/card_presend.tpl.php';
 }
 
-
 // End of page
 llxFooter();
 $db->close();