diff --git a/htdocs/api/class/api_setup.class.php b/htdocs/api/class/api_setup.class.php
index 1f59762c865..f5f301e9c16 100644
--- a/htdocs/api/class/api_setup.class.php
+++ b/htdocs/api/class/api_setup.class.php
@@ -1013,7 +1013,7 @@ class Setup extends DolibarrApi
 					$list[$tab->elementtype][$tab->name]['computed'] = $tab->fieldcomputed;
 					$list[$tab->elementtype][$tab->name]['unique'] = $tab->fieldunique;
 					$list[$tab->elementtype][$tab->name]['required'] = $tab->fieldrequired;
-					$list[$tab->elementtype][$tab->name]['param'] = ($tab->param ? unserialize($tab->param) : '');
+					$list[$tab->elementtype][$tab->name]['param'] = ($tab->param ? jsonOrUnserialize($tab->param) : '');	// This may be a string encoded with serialise() or json_encode()
 					$list[$tab->elementtype][$tab->name]['pos'] = $tab->pos;
 					$list[$tab->elementtype][$tab->name]['alwayseditable'] = $tab->alwayseditable;
 					$list[$tab->elementtype][$tab->name]['perms'] = $tab->perms;
diff --git a/htdocs/blockedlog/class/blockedlog.class.php b/htdocs/blockedlog/class/blockedlog.class.php
index 366d7042d77..112456480e1 100644
--- a/htdocs/blockedlog/class/blockedlog.class.php
+++ b/htdocs/blockedlog/class/blockedlog.class.php
@@ -777,10 +777,8 @@ class BlockedLog
 	public function dolDecodeBlockedData($data, $mode = 0)
 	{
 		try {
-			//include_once DOL_DOCUMENT_ROOT.'/compta/facture/class/facture.class.php';
 			//include_once DOL_DOCUMENT_ROOT.'/compta/facture/class/facture.class.php';
 			$aaa = unserialize($data);
-			//$aaa = unserialize($data);
 		} catch (Exception $e) {
 			//print $e->getErrs);
 		}
diff --git a/htdocs/compta/bank/treso.php b/htdocs/compta/bank/treso.php
index 6ccd953a68b..d9b54ad1c3d 100644
--- a/htdocs/compta/bank/treso.php
+++ b/htdocs/compta/bank/treso.php
@@ -163,8 +163,8 @@ if (GETPOST("account") || GETPOST("ref")) {
 	$sqls[] = $sql;
 
 	// Social contributions
-	$sql = " SELECT 'social_contribution' as family, cs.rowid as objid, cs.libelle as ref, (-1*cs.amount) as total_ttc, ccs.libelle as type, cs.date_ech as dlr";
-	$sql .= ", cs.fk_account";
+	$sql = " SELECT 'social_contribution' as family, cs.rowid as objid, cs.libelle as ref, (-1*cs.amount) as total_ttc, ccs.libelle as type, cs.date_ech as dlr,";
+	$sql .= " 0 as socid, 'noname' as name, 0 as fournisseur";
 	$sql .= " FROM ".MAIN_DB_PREFIX."chargesociales as cs";
 	$sql .= " LEFT JOIN ".MAIN_DB_PREFIX."c_chargesociales as ccs ON cs.fk_type = ccs.id";
 	$sql .= " WHERE cs.entity = ".$conf->entity;
@@ -188,7 +188,18 @@ if (GETPOST("account") || GETPOST("ref")) {
 		$resql = $db->query($sql);
 		if ($resql) {
 			while ($sqlobj = $db->fetch_object($resql)) {
-				$tab_sqlobj[] = $sqlobj;
+				$tmpobj = new stdClass();
+				$tmpobj->family = $sqlobj->family;
+				$tmpobj->objid = $sqlobj->objid;
+				$tmpobj->ref = $sqlobj->ref;
+				$tmpobj->total_ttc = $sqlobj->total_ttc;
+				$tmpobj->type = $sqlobj->type;
+				$tmpobj->dlt = $sqlobj->dlr;
+				$tmpobj->socid = $sqlobj->socid;
+				$tmpobj->name = $sqlobj->name;
+				$tmpobj->fournisseur = $sqlobj->fournisseur;
+
+				$tab_sqlobj[] = $tmpobj;
 				$tab_sqlobjOrder[] = $db->jdate($sqlobj->dlr);
 			}
 			$db->free($resql);
@@ -201,15 +212,6 @@ if (GETPOST("account") || GETPOST("ref")) {
 	if (!$error) {
 		array_multisort($tab_sqlobjOrder, $tab_sqlobj);
 
-		// Apply distinct filter
-		foreach ($tab_sqlobj as $key => $value) {
-			$tab_sqlobj[$key] = "'".serialize($value)."'";
-		}
-		$tab_sqlobj = array_unique($tab_sqlobj);
-		foreach ($tab_sqlobj as $key => $value) {
-			$tab_sqlobj[$key] = unserialize(trim($value, "'"));
-		}
-
 		$num = count($tab_sqlobj);
 
 		$i = 0;
diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index ec9449eba8f..5467490ea0e 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -8167,15 +8167,6 @@ abstract class CommonObject
 				} else {
 					$queryarray[$field] = $this->db->idate($this->{$field});
 				}
-			} elseif ($this->isArray($info)) {
-				if (!empty($this->{$field})) {
-					if (!is_array($this->{$field})) {
-						$this->{$field} = array($this->{$field});
-					}
-					$queryarray[$field] = serialize($this->{$field});
-				} else {
-					$queryarray[$field] = null;
-				}
 			} elseif ($this->isDuration($info)) {
 				// $this->{$field} may be null, '', 0, '0', 123, '123'
 				if ((isset($this->{$field}) && $this->{$field} != '') || !empty($info['notnull'])) {
@@ -8236,16 +8227,6 @@ abstract class CommonObject
 				} else {
 					$this->{$field} = $db->jdate($obj->{$field});
 				}
-			} elseif ($this->isArray($info)) {
-				if (!empty($obj->{$field})) {
-					$this->{$field} = @unserialize($obj->{$field});
-					// Hack for data not in UTF8
-					if ($this->{$field } === false) {
-						@unserialize(utf8_decode($obj->{$field}));
-					}
-				} else {
-					$this->{$field} = array();
-				}
 			} elseif ($this->isInt($info)) {
 				if ($field == 'rowid') {
 					$this->id = (int) $obj->{$field};
diff --git a/htdocs/core/class/extrafields.class.php b/htdocs/core/class/extrafields.class.php
index b4d7f1a74df..54d812aeafb 100644
--- a/htdocs/core/class/extrafields.class.php
+++ b/htdocs/core/class/extrafields.class.php
@@ -936,7 +936,7 @@ class ExtraFields
 					$this->attribute_computed[$tab->name] = $tab->fieldcomputed;
 					$this->attribute_unique[$tab->name] = $tab->fieldunique;
 					$this->attribute_required[$tab->name] = $tab->fieldrequired;
-					$this->attribute_param[$tab->name] = ($tab->param ? unserialize($tab->param) : '');
+					$this->attribute_param[$tab->name] = ($tab->param ? jsonOrUnserialize($tab->param) : '');
 					$this->attribute_pos[$tab->name] = $tab->pos;
 					$this->attribute_alwayseditable[$tab->name] = $tab->alwayseditable;
 					$this->attribute_perms[$tab->name] = (strlen($tab->perms) == 0 ? 1 : $tab->perms);
@@ -954,7 +954,7 @@ class ExtraFields
 					$this->attributes[$tab->elementtype]['computed'][$tab->name] = $tab->fieldcomputed;
 					$this->attributes[$tab->elementtype]['unique'][$tab->name] = $tab->fieldunique;
 					$this->attributes[$tab->elementtype]['required'][$tab->name] = $tab->fieldrequired;
-					$this->attributes[$tab->elementtype]['param'][$tab->name] = ($tab->param ? unserialize($tab->param) : '');
+					$this->attributes[$tab->elementtype]['param'][$tab->name] = ($tab->param ? jsonOrUnserialize($tab->param) : '');
 					$this->attributes[$tab->elementtype]['pos'][$tab->name] = $tab->pos;
 					$this->attributes[$tab->elementtype]['alwayseditable'][$tab->name] = $tab->alwayseditable;
 					$this->attributes[$tab->elementtype]['perms'][$tab->name] = (strlen($tab->perms) == 0 ? 1 : $tab->perms);
diff --git a/htdocs/core/commonfieldsinexport.inc.php b/htdocs/core/commonfieldsinexport.inc.php
index a02a21afdd6..3b201e4f10a 100644
--- a/htdocs/core/commonfieldsinexport.inc.php
+++ b/htdocs/core/commonfieldsinexport.inc.php
@@ -37,7 +37,7 @@ if (class_exists($keyforclass)) {
 			/*
 			 * case 'sellist':
 			 * $tmp='';
-			 * $tmpparam=unserialize($obj->param); // $tmp ay be array 'options' => array 'c_currencies:code_iso:code_iso' => null
+			 * $tmpparam=jsonOrUnserialize($obj->param); // $tmp ay be array 'options' => array 'c_currencies:code_iso:code_iso' => null
 			 * if ($tmpparam['options'] && is_array($tmpparam['options'])) {
 			 * $tmpkeys=array_keys($tmpparam['options']);
 			 * $tmp=array_shift($tmpkeys);
diff --git a/htdocs/core/extrafieldsinexport.inc.php b/htdocs/core/extrafieldsinexport.inc.php
index 861ef142c25..70dd0077e57 100644
--- a/htdocs/core/extrafieldsinexport.inc.php
+++ b/htdocs/core/extrafieldsinexport.inc.php
@@ -39,7 +39,7 @@ if ($resql) {    // This can fail when class is used on old database (during mig
 			case 'checkbox':
 			case 'select':
 				if (!empty($conf->global->EXPORT_LABEL_FOR_SELECT)) {
-					$tmpparam = unserialize($obj->param); // $tmpparam may be array with 'options' = array(key1=>val1, key2=>val2 ...)
+					$tmpparam = jsonOrUnserialize($obj->param); // $tmpparam may be array with 'options' = array(key1=>val1, key2=>val2 ...)
 					if ($tmpparam['options'] && is_array($tmpparam['options'])) {
 						$typeFilter = "Select:".$obj->param;
 					}
@@ -47,7 +47,7 @@ if ($resql) {    // This can fail when class is used on old database (during mig
 				break;
 			case 'sellist':
 				$tmp = '';
-				$tmpparam = unserialize($obj->param); // $tmp ay be array 'options' => array 'c_currencies:code_iso:code_iso' => null
+				$tmpparam = jsonOrUnserialize($obj->param); // $tmp may be array 'options' => array 'c_currencies:code_iso:code_iso' => null
 				if ($tmpparam['options'] && is_array($tmpparam['options'])) {
 					$tmpkeys = array_keys($tmpparam['options']);
 					$tmp = array_shift($tmpkeys);
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 87a4b966056..33a073920ff 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -993,7 +993,7 @@ function dol_buildpath($path, $type = 0, $returnemptyifnotfound = 0)
 function dol_clone($object, $native = 0)
 {
 	if (empty($native)) {
-		$myclone = unserialize(serialize($object));
+		$myclone = unserialize(serialize($object));	// serialize then unserialize is hack to be sure to have a new object for all fields
 	} else {
 		$myclone = clone $object; // PHP clone is a shallow copy only, not a real clone, so properties of references will keep the reference (refering to the same target/variable)
 	}
@@ -10301,9 +10301,10 @@ function readfileLowMemory($fullpath_original_file_osencoded, $method = -1)
  */
 function showValueWithClipboardCPButton($valuetocopy, $showonlyonhover = 1, $texttoshow = '')
 {
+	/*
 	global $conf;
 
-	/*if (!empty($conf->dol_no_mouse_hover)) {
+	if (!empty($conf->dol_no_mouse_hover)) {
 		$showonlyonhover = 0;
 	}*/
 
@@ -10315,3 +10316,19 @@ function showValueWithClipboardCPButton($valuetocopy, $showonlyonhover = 1, $tex
 
 	return $result;
 }
+
+
+/**
+ * Decode an encode string. The string can be encoded in json format (recommended) or with serialize (avoid this)
+ *
+ * @param string	$stringtodecode		String to decode (json or serialize coded)
+ */
+function jsonOrUnserialize($stringtodecode)
+{
+	$result = json_decode($stringtodecode);
+	if ($result === null) {
+		$result = unserialize($stringtodecode);
+	}
+
+	return $result;
+}
diff --git a/htdocs/core/modules/export/export_csv.modules.php b/htdocs/core/modules/export/export_csv.modules.php
index 2d15f3999d0..88ae937bb6d 100644
--- a/htdocs/core/modules/export/export_csv.modules.php
+++ b/htdocs/core/modules/export/export_csv.modules.php
@@ -277,8 +277,8 @@ class ExportCsv extends ModeleExports
 
 			$newvalue = $this->csvClean($newvalue, $outputlangs->charset_output);
 
-			if (preg_match('/^Select:/i', $typefield, $reg) && $typefield = substr($typefield, 7)) {
-				$array = unserialize($typefield);
+			if (preg_match('/^Select:/i', $typefield) && $typefield = substr($typefield, 7)) {
+				$array = json_decode($typefield, true);
 				$array = $array['options'];
 				$newvalue = $array[$newvalue];
 			}
diff --git a/htdocs/core/modules/export/export_excel2007.modules.php b/htdocs/core/modules/export/export_excel2007.modules.php
index 370fc49df7e..54842ff8278 100644
--- a/htdocs/core/modules/export/export_excel2007.modules.php
+++ b/htdocs/core/modules/export/export_excel2007.modules.php
@@ -315,8 +315,8 @@ class ExportExcel2007 extends ModeleExports
 			$newvalue = $this->excel_clean($newvalue);
 			$typefield = isset($array_types[$code]) ? $array_types[$code] : '';
 
-			if (preg_match('/^Select:/i', $typefield, $reg) && $typefield = substr($typefield, 7)) {
-				$array = unserialize($typefield);
+			if (preg_match('/^Select:/i', $typefield) && $typefield = substr($typefield, 7)) {
+				$array = json_decode($typefield, true);
 				$array = $array['options'];
 				$newvalue = $array[$newvalue];
 			}
diff --git a/htdocs/core/modules/export/export_tsv.modules.php b/htdocs/core/modules/export/export_tsv.modules.php
index c93787a762c..7718dd3e350 100644
--- a/htdocs/core/modules/export/export_tsv.modules.php
+++ b/htdocs/core/modules/export/export_tsv.modules.php
@@ -252,8 +252,8 @@ class ExportTsv extends ModeleExports
 
 			$newvalue = $this->tsv_clean($newvalue, $outputlangs->charset_output);
 
-			if (preg_match('/^Select:/i', $typefield, $reg) && $typefield = substr($typefield, 7)) {
-				$array = unserialize($typefield);
+			if (preg_match('/^Select:/i', $typefield) && $typefield = substr($typefield, 7)) {
+				$array = json_decode($typefield, true);
 				$array = $array['options'];
 				$newvalue = $array[$newvalue];
 			}
diff --git a/htdocs/core/modules/modFournisseur.class.php b/htdocs/core/modules/modFournisseur.class.php
index 41107d5c34a..5d71a5abdc8 100644
--- a/htdocs/core/modules/modFournisseur.class.php
+++ b/htdocs/core/modules/modFournisseur.class.php
@@ -285,7 +285,7 @@ class modFournisseur extends DolibarrModules
 		$r++;
 		$this->export_code[$r] = $this->rights_class.'_'.$r;
 		$this->export_label[$r] = 'Vendor invoices and lines of invoices';
-		$this->export_icon[$r] = 'bill';
+		$this->export_icon[$r] = 'invoice';
 		$this->export_permission[$r] = array(array("fournisseur", "facture", "export"));
 		$this->export_fields_array[$r] = array(
 			's.rowid'=>"IdCompany", 's.nom'=>'CompanyName', 'ps.nom'=>'ParentCompany', 's.address'=>'Address', 's.zip'=>'Zip', 's.town'=>'Town', 'c.code'=>'CountryCode', 's.phone'=>'Phone',
@@ -328,81 +328,14 @@ class modFournisseur extends DolibarrModules
 		);
 		$this->export_dependencies_array[$r] = array('invoice_line'=>'fd.rowid', 'product'=>'fd.rowid'); // To add unique key if we ask a field of a child to avoid the DISTINCT to discard them
 		// Add extra fields object
-		$sql = "SELECT name, label, type, param FROM ".MAIN_DB_PREFIX."extrafields WHERE elementtype = 'facture_fourn' AND entity IN (0, ".$conf->entity.")";
-		$resql = $this->db->query($sql);
-		if ($resql) {    // This can fail when class is used on old database (during migration for example)
-			while ($obj = $this->db->fetch_object($resql)) {
-				$fieldname = 'extra.'.$obj->name;
-				$fieldlabel = ucfirst($obj->label);
-				$typeFilter = "Text";
-				switch ($obj->type) {
-					case 'int':
-					case 'double':
-					case 'price':
-						$typeFilter = "Numeric";
-						break;
-					case 'date':
-					case 'datetime':
-						$typeFilter = "Date";
-						break;
-					case 'boolean':
-						$typeFilter = "Boolean";
-						break;
-					case 'sellist':
-						$tmp = '';
-						$tmpparam = unserialize($obj->param); // $tmp ay be array 'options' => array 'c_currencies:code_iso:code_iso' => null
-						if ($tmpparam['options'] && is_array($tmpparam['options'])) {
-							$var = array_keys($tmpparam['options']);
-							$tmp = array_shift($var);
-						}
-						if (preg_match('/[a-z0-9_]+:[a-z0-9_]+:[a-z0-9_]+/', $tmp)) {
-							$typeFilter = "List:".$tmp;
-						}
-						break;
-				}
-				$this->export_fields_array[$r][$fieldname] = $fieldlabel;
-				$this->export_TypeFields_array[$r][$fieldname] = $typeFilter;
-				$this->export_entities_array[$r][$fieldname] = 'invoice';
-			}
-		}
-		// End add extra fields
-		// Add extra fields line
-		$sql = "SELECT name, label, type, param FROM ".MAIN_DB_PREFIX."extrafields WHERE elementtype = 'facture_fourn_det' AND entity IN (0, ".$conf->entity.")";
-		$resql = $this->db->query($sql);
-		if ($resql) {    // This can fail when class is used on old database (during migration for example)
-			while ($obj = $this->db->fetch_object($resql)) {
-				$fieldname = 'extraline.'.$obj->name;
-				$fieldlabel = ucfirst($obj->label);
-				$typeFilter = "Text";
-				switch ($obj->type) {
-					case 'int':
-					case 'double':
-					case 'price':
-						$typeFilter = "Numeric";
-						break;
-					case 'date':
-					case 'datetime':
-						$typeFilter = "Date";
-						break;
-					case 'boolean':
-						$typeFilter = "Boolean";
-						break;
-					case 'sellist':
-						$tmp = '';
-						$tmpparam = unserialize($obj->param); // $tmp ay be array 'options' => array 'c_currencies:code_iso:code_iso' => null
-						if ($tmpparam['options'] && is_array($tmpparam['options'])) {
-							$tmp = array_shift(array_keys($tmpparam['options']));
-						}
-						if (preg_match('/[a-z0-9_]+:[a-z0-9_]+:[a-z0-9_]+/', $tmp)) {
-							$typeFilter = "List:".$tmp;
-						}
-						break;
-				}
-				$this->export_fields_array[$r][$fieldname] = $fieldlabel;
-				$this->export_TypeFields_array[$r][$fieldname] = $typeFilter;
-				$this->export_entities_array[$r][$fieldname] = 'invoice_line';
-			}
-		}
+		$keyforselect = 'facture_fourn';
+		$keyforelement = 'invoice';
+		$keyforaliasextra = 'extra';
+		include DOL_DOCUMENT_ROOT.'/core/extrafieldsinexport.inc.php';
+		$keyforselect = 'facture_fourn_det';
+		$keyforelement = 'invoice_line';
+		$keyforaliasextra = 'extraline';
+		include DOL_DOCUMENT_ROOT.'/core/extrafieldsinexport.inc.php';
 		// End add extra fields line
 		$this->export_sql_start[$r] = 'SELECT DISTINCT ';
 		$this->export_sql_end[$r]  = ' FROM '.MAIN_DB_PREFIX.'societe as s';
@@ -426,7 +359,7 @@ class modFournisseur extends DolibarrModules
 		$r++;
 		$this->export_code[$r] = $this->rights_class.'_'.$r;
 		$this->export_label[$r] = 'Factures fournisseurs et reglements';
-		$this->export_icon[$r] = 'bill';
+		$this->export_icon[$r] = 'invoice';
 		$this->export_permission[$r] = array(array("fournisseur", "facture", "export"));
 		$this->export_fields_array[$r] = array(
 			's.rowid'=>"IdCompany", 's.nom'=>'CompanyName', 's.address'=>'Address', 's.zip'=>'Zip', 's.town'=>'Town', 'c.code'=>'CountryCode', 's.phone'=>'Phone',
@@ -465,43 +398,10 @@ class modFournisseur extends DolibarrModules
 			'p.datep'=>'payment', 'p.num_paiement'=>'payment', 'p.fk_bank'=>'account', 'project.rowid'=>'project', 'project.ref'=>'project', 'project.title'=>'project');
 		$this->export_dependencies_array[$r] = array('payment'=>'p.rowid'); // To add unique key if we ask a field of a child to avoid the DISTINCT to discard them
 		// Add extra fields object
-		$sql = "SELECT name, label, type, param FROM ".MAIN_DB_PREFIX."extrafields WHERE elementtype = 'facture_fourn' AND entity IN (0, ".$conf->entity.")";
-		$resql = $this->db->query($sql);
-		if ($resql) {    // This can fail when class is used on old database (during migration for example)
-			while ($obj = $this->db->fetch_object($resql)) {
-				$fieldname = 'extra.'.$obj->name;
-				$fieldlabel = ucfirst($obj->label);
-				$typeFilter = "Text";
-				switch ($obj->type) {
-					case 'int':
-					case 'double':
-					case 'price':
-						$typeFilter = "Numeric";
-						break;
-					case 'date':
-					case 'datetime':
-						$typeFilter = "Date";
-						break;
-					case 'boolean':
-						$typeFilter = "Boolean";
-						break;
-					case 'sellist':
-						$tmp = '';
-						$tmpparam = unserialize($obj->param); // $tmp ay be array 'options' => array 'c_currencies:code_iso:code_iso' => null
-						if ($tmpparam['options'] && is_array($tmpparam['options'])) {
-							$array_keys = array_keys($tmpparam['options']);
-							$tmp = array_shift($array_keys);
-						}
-						if (preg_match('/[a-z0-9_]+:[a-z0-9_]+:[a-z0-9_]+/', $tmp)) {
-							$typeFilter = "List:".$tmp;
-						}
-						break;
-				}
-				$this->export_fields_array[$r][$fieldname] = $fieldlabel;
-				$this->export_TypeFields_array[$r][$fieldname] = $typeFilter;
-				$this->export_entities_array[$r][$fieldname] = 'invoice';
-			}
-		}
+		$keyforselect = 'facture_fourn';
+		$keyforelement = 'invoice';
+		$keyforaliasextra = 'extra';
+		include DOL_DOCUMENT_ROOT.'/core/extrafieldsinexport.inc.php';
 		// End add extra fields object
 		$this->export_sql_start[$r] = 'SELECT DISTINCT ';
 		$this->export_sql_end[$r]  = ' FROM '.MAIN_DB_PREFIX.'societe as s';
@@ -564,83 +464,16 @@ class modFournisseur extends DolibarrModules
 		);
 		$this->export_dependencies_array[$r] = array('order_line'=>'fd.rowid', 'product'=>'fd.rowid'); // To add unique key if we ask a field of a child to avoid the DISTINCT to discard them
 		// Add extra fields object
-		$sql = "SELECT name, label, type, param FROM ".MAIN_DB_PREFIX."extrafields WHERE elementtype = 'commande_fournisseur' AND entity IN (0, ".$conf->entity.")";
-		$resql = $this->db->query($sql);
-		if ($resql) {    // This can fail when class is used on old database (during migration for example)
-			while ($obj = $this->db->fetch_object($resql)) {
-				$fieldname = 'extra.'.$obj->name;
-				$fieldlabel = ucfirst($obj->label);
-				$typeFilter = "Text";
-				switch ($obj->type) {
-					case 'int':
-					case 'double':
-					case 'price':
-						$typeFilter = "Numeric";
-						break;
-					case 'date':
-					case 'datetime':
-						$typeFilter = "Date";
-						break;
-					case 'boolean':
-						$typeFilter = "Boolean";
-						break;
-					case 'sellist':
-						$tmp = '';
-						$tmpparam = unserialize($obj->param); // $tmp ay be array 'options' => array 'c_currencies:code_iso:code_iso' => null
-						$tmpkey = array_keys($tmpparam['options']);
-						if ($tmpparam['options'] && is_array($tmpparam['options'])) {
-							$tmp = array_shift($tmpkey);
-						}
-						if (preg_match('/[a-z0-9_]+:[a-z0-9_]+:[a-z0-9_]+/', $tmp)) {
-							$typeFilter = "List:".$tmp;
-						}
-						break;
-				}
-				$this->export_fields_array[$r][$fieldname] = $fieldlabel;
-				$this->export_TypeFields_array[$r][$fieldname] = $typeFilter;
-				$this->export_entities_array[$r][$fieldname] = 'order';
-			}
-		}
+		$keyforselect = 'commande_fournisseur';
+		$keyforelement = 'order';
+		$keyforaliasextra = 'extra';
+		include DOL_DOCUMENT_ROOT.'/core/extrafieldsinexport.inc.php';
 		// End add extra fields object
 		// Add extra fields line
-		$sql = "SELECT name, label, type, param FROM ".MAIN_DB_PREFIX."extrafields WHERE elementtype = 'commande_fournisseurdet' AND entity IN (0, ".$conf->entity.")";
-		$resql = $this->db->query($sql);
-		if ($resql) {    // This can fail when class is used on old database (during migration for example)
-			while ($obj = $this->db->fetch_object($resql)) {
-				$fieldname = 'extraline.'.$obj->name;
-				$fieldlabel = ucfirst($obj->label);
-				$typeFilter = "Text";
-				switch ($obj->type) {
-					case 'int':
-					case 'double':
-					case 'price':
-						$typeFilter = "Numeric";
-						break;
-					case 'date':
-					case 'datetime':
-						$typeFilter = "Date";
-						break;
-					case 'boolean':
-						$typeFilter = "Boolean";
-						break;
-					case 'sellist':
-						$tmp = '';
-						$tmpparam = unserialize($obj->param); // $tmp ay be array 'options' => array 'c_currencies:code_iso:code_iso' => null
-
-						if ($tmpparam['options'] && is_array($tmpparam['options'])) {
-							$tmpparam_param_key = array_keys($tmpparam['options']);
-							$tmp = array_shift($tmpparam_param_key);
-						}
-						if (preg_match('/[a-z0-9_]+:[a-z0-9_]+:[a-z0-9_]+/', $tmp)) {
-							$typeFilter = "List:".$tmp;
-						}
-						break;
-				}
-				$this->export_fields_array[$r][$fieldname] = $fieldlabel;
-				$this->export_TypeFields_array[$r][$fieldname] = $typeFilter;
-				$this->export_entities_array[$r][$fieldname] = 'order_line';
-			}
-		}
+		$keyforselect = 'commande_fournisseurdet';
+		$keyforelement = 'order_line';
+		$keyforaliasextra = 'extraline';
+		include DOL_DOCUMENT_ROOT.'/core/extrafieldsinexport.inc.php';
 		// End add extra fields line
 		$this->export_sql_start[$r] = 'SELECT DISTINCT ';
 		$this->export_sql_end[$r]  = ' FROM '.MAIN_DB_PREFIX.'societe as s';
diff --git a/htdocs/install/mysql/tables/llx_oauth_token.sql b/htdocs/install/mysql/tables/llx_oauth_token.sql
index 7674f7f3455..62542d13401 100644
--- a/htdocs/install/mysql/tables/llx_oauth_token.sql
+++ b/htdocs/install/mysql/tables/llx_oauth_token.sql
@@ -18,8 +18,8 @@
 CREATE TABLE llx_oauth_token (
     rowid 			integer AUTO_INCREMENT PRIMARY KEY,
     service 		varchar(36),         	-- What king of key or token: 'Google', 'Stripe', 'auth-public-key', ...
-    token 			text,				 	-- token in serialize() format, of an object StdOAuth2Token of library phpoauth2
-    tokenstring 	text,				 	-- token in text or json format. Value depends on 'service'. For example for an OAUTH service: '{"access_token": "sk_test_cccc", "refresh_token": "rt_aaa", "token_type": "bearer", ..., "scope": "read_write"}
+    token 			text,				 	-- token in serialize format, of an object StdOAuth2Token of library phpoauth2. Deprecated, use tokenstring instead.
+    tokenstring 	text,				 	-- token in json or text format. Value depends on 'service'. For example for an OAUTH service: '{"access_token": "sk_test_cccc", "refresh_token": "rt_aaa", "token_type": "bearer", ..., "scope": "read_write"}
     fk_soc 			integer,				-- Id of thirdparty in llx_societe
     fk_user 		integer,             	-- Id of user in llx_user
     fk_adherent 	integer,				-- Id of member in llx_adherent
diff --git a/test/phpunit/JsonLibTest.php b/test/phpunit/JsonLibTest.php
index ddb62a90204..a8619ae08c5 100644
--- a/test/phpunit/JsonLibTest.php
+++ b/test/phpunit/JsonLibTest.php
@@ -161,6 +161,15 @@ class JsonLibTest extends PHPUnit\Framework\TestCase
 		$this->savlangs=$langs;
 		$this->savdb=$db;
 
+		// Try to decode a string encoded with serialize
+		$encoded = 'a:1:{s:7:"options";a:3:{s:3:"app";s:11:"Application";s:6:"system";s:6:"System";s:6:"option";s:6:"Option";}}';
+		$decoded=json_decode($encoded, true);
+		$this->assertEquals(null, $decoded, 'test to json_decode() a string that was encoded with serialize()');
+
+		$encoded = 'rubishstring!aa{bcd';
+		$decoded=json_decode($encoded, true);
+		$this->assertEquals(null, $decoded, 'test to json_decode() a string that was encoded with serialize()');
+
 		// Do a test with an array starting with 0
 		$arraytotest=array(0=>array('key'=>1,'value'=>'PRODREF','label'=>'Product ref with é and special chars \\ \' "'));
 		$arrayencodedexpected='[{"key":1,"value":"PRODREF","label":"Product ref with \u00e9 and special chars \\\\ \' \""}]';