1 files changed, 10 insertions, 0 deletions
diff --git a/src/mixedobject.h b/src/mixedobject.h
index 55a27ec..4db74da 100644
--- a/src/mixedobject.h
+++ b/src/mixedobject.h
@@ -17,7 +17,17 @@ namespace Php {
  */
 struct MixedObject
 {
+    /**
+     *  The actual object is the first member, so that casting
+     *  the MixedObject to a zend_object will also result in a valid pointer
+     *  @var    zend_object
+     */
     zend_object php;
+    
+    /**
+     *  Pointer to the C++ implementation
+     *  @var    Base
+     */
     Base *cpp;
 };