diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 5f0741b26d4..e7d2c61bd4c 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -6090,13 +6090,15 @@ abstract class CommonObject
 
 				// If field is a computed field, value must become result of compute (regardless of whether a row exists
 				// in the element's extrafields table)
-				foreach ($extrafields->attributes[$this->table_element]['label'] as $key => $val) {
-					if (!empty($extrafields->attributes[$this->table_element]) && !empty($extrafields->attributes[$this->table_element]['computed'][$key])) {
-						//var_dump($conf->disable_compute);
-						if (empty($conf->disable_compute)) {
-							global $objectoffield;		// We set a global variable to $objectoffield so
-							$objectoffield = $this;		// we can use it inside computed formula
-							$this->array_options["options_".$key] = dol_eval($extrafields->attributes[$this->table_element]['computed'][$key], 1, 0, '');
+				if (is_array($extrafields->attributes[$this->table_element]['label'])) {
+					foreach ($extrafields->attributes[$this->table_element]['label'] as $key => $val) {
+						if (!empty($extrafields->attributes[$this->table_element]) && !empty($extrafields->attributes[$this->table_element]['computed'][$key])) {
+							//var_dump($conf->disable_compute);
+							if (empty($conf->disable_compute)) {
+								global $objectoffield;        // We set a global variable to $objectoffield so
+								$objectoffield = $this;        // we can use it inside computed formula
+								$this->array_options['options_' . $key] = dol_eval($extrafields->attributes[$this->table_element]['computed'][$key], 1, 0, '');
+							}
 						}
 					}
 				}
diff --git a/htdocs/core/lib/security.lib.php b/htdocs/core/lib/security.lib.php
index d1d0d7ed7d0..5a610090be2 100644
--- a/htdocs/core/lib/security.lib.php
+++ b/htdocs/core/lib/security.lib.php
@@ -257,7 +257,7 @@ function dol_verifyHash($chain, $hash, $type = '0')
 	global $conf;
 
 	if ($type == '0' && !empty($conf->global->MAIN_SECURITY_HASH_ALGO) && $conf->global->MAIN_SECURITY_HASH_ALGO == 'password_hash' && function_exists('password_verify')) {
-		if ($hash[0] == '$') {
+		if (! empty($hash[0]) && $hash[0] == '$') {
 			return password_verify($chain, $hash);
 		} elseif (strlen($hash) == 32) {
 			return dol_verifyHash($chain, $hash, '3'); // md5
diff --git a/htdocs/holiday/define_holiday.php b/htdocs/holiday/define_holiday.php
index 2d47467319d..c19defa8ba3 100644
--- a/htdocs/holiday/define_holiday.php
+++ b/htdocs/holiday/define_holiday.php
@@ -363,6 +363,7 @@ if (count($typeleaves) == 0) {
 	print_liste_field_titre((empty($user->rights->holiday->define_holiday) ? '' : 'Note'), $_SERVER["PHP_SELF"]);
 	print_liste_field_titre('');
 
+	$selectedfields = '';
 	if ($massactionbutton) {
 		$selectedfields = $form->showCheckAddButtons('checkforselect', 1);
 	}
diff --git a/htdocs/projet/list.php b/htdocs/projet/list.php
index 15fc35f9e84..f5c25f6a516 100644
--- a/htdocs/projet/list.php
+++ b/htdocs/projet/list.php
@@ -839,7 +839,7 @@ if ($search_project_user > 0) {
 	$param .= '&search_project_user='.urlencode($search_project_user);
 }
 if ($search_project_contact != '') {
-	$param .= '&search_project_user='.urlencode($search_project_contact);
+	$param .= '&search_project_contact='.urlencode($search_project_contact);
 }
 if ($search_sale > 0) {
 	$param .= '&search_sale='.urlencode($search_sale);