diff --git a/dblayer.php b/dblayer.php
index d830d1f..d30bc91 100644
--- a/dblayer.php
+++ b/dblayer.php
@@ -64,6 +64,8 @@ class dblayer extends PDO
   {
     if ($this->db === null)
       throw new Exception ("Database not connected");
+    if (!is_array ($datas))
+      throw new Exception ("The datas provided to create are not array");
     $datasOK = array ();
     // Check for missing parameters
     foreach ($this->fields as $key=>$params)