diff --git a/include/lib/http_input.class.php b/include/lib/http_input.class.php
index f286d8d6e..d486cd6e3 100644
--- a/include/lib/http_input.class.php
+++ b/include/lib/http_input.class.php
@@ -48,14 +48,14 @@ class HttpInput
             if ($p_type=="string")
                 return;
             // Check if number
-            if ($p_type=="number"&&isNumber($this->array[$p_name])==0            )
+            else if ($p_type=="number"&&isNumber($this->array[$p_name])==0 )
             {
                 $this->array[$p_name]=h($this->array[$p_name]);
                 throw new Exception(_("Type invalide")."[ $p_name ] = {$this->array[$p_name]}"
                 , EXC_PARAM_TYPE);
             }
             // Check if date dd.mm.yyyy
-            if ($p_type=="date")
+            else if ($p_type=="date")
             {
                 if (isDate($this->array[$p_name]) <> $this->array[$p_name])
                 {
@@ -64,11 +64,13 @@ class HttpInput
                     , EXC_PARAM_TYPE);
                 }
             }
-            if ($p_type=="array"&&!is_array($this->array[$p_name]))
+            else if ($p_type=="array"&&!is_array($this->array[$p_name]))
             {
                 $this->array[$p_name]=h($this->array[$p_name]);
                 throw new Exception(_("Type invalide")."[ $p_name ] = {$this->array[$p_name]}"
                 , EXC_PARAM_TYPE);
+            }else {
+                throw new Exception(_("Unknown type"));
             }
         }
         catch (Exception $ex)