diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 51b7442defe..01e8acf4896 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -40,6 +40,30 @@
 include_once DOL_DOCUMENT_ROOT.'/core/lib/json.lib.php';
 
 
+/**
+ * Return dolibarr global constant string value
+ * @param string $key key to return value, return '' if not set
+ * @return string
+ */
+function getDolGlobalString($key)
+{
+	global $conf;
+	// return $conf->global->$key ?? '';
+	return (string) (empty($conf->global->$key) ? '' : $conf->global->$key);
+}
+
+/**
+ * Return dolibarr global constant int value
+ * @param string $key key to return value, return 0 if not set
+ * @return int
+ */
+function getDolGlobalInt($key)
+{
+	global $conf;
+	// return $conf->global->$key ?? 0;
+	return (int) (empty($conf->global->$key) ? 0 : $conf->global->$key);
+}
+
 /**
  * Return a DoliDB instance (database handler).
  *