Remove warning

htdocs/api/class/api.class.php

@@ -81,7 +81,9 @@ class DolibarrApi
 
         // If object has lines, remove $db property
         if(isset($object->lines) && count($object->lines) > 0)  {
-            for($i=0; $i < count($object->lines); $i++) {
+            $nboflines = count($object->lines);
+        	for ($i=0; $i < $nbofline; $i++)
+            {
                 $this->_cleanObjectDatas($object->lines[$i]);
             }
         }