1 files changed, 7 insertions, 0 deletions
diff --git a/src/iteratorimpl.h b/src/iteratorimpl.h
index 97c59e4..4d15c73 100644
--- a/src/iteratorimpl.h
+++ b/src/iteratorimpl.h
@@ -19,6 +19,13 @@ namespace Php {
  */
 class IteratorImpl
 {
+public:
+    /**
+     *  Clone the object
+     *  @return IteratorImpl*
+     */
+    virtual IteratorImpl *clone() = 0;
+
     /**
      *  Increment position (pre-increment)
      *  @return bool