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diff --git a/Examples/php/reference/example.i b/Examples/php/reference/example.i
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+/* File : example.i */
+
+/* This example has nothing to do with references but the name is used by all
+ * the other languages so it's hard to rename to something more meaningful.
+ *
+ * Mostly it shows how to use %extend.
+ */
+
+%module example
+
+%{
+#include "example.h"
+%}
+
+class Vector {
+public:
+    Vector(double x, double y, double z);
+   ~Vector();
+    char *as_string();
+};
+
+/* This helper function calls an overloaded operator */
+%inline %{
+Vector addv(Vector &a, Vector &b) {
+  return a+b;
+}
+%}
+
+/* Wrapper around an array of vectors class */
+
+class VectorArray {
+public:
+  VectorArray(int maxsize);
+  ~VectorArray();
+  int size();
+  
+ /*  This wrapper provides an alternative to the [] operator */
+  %extend {
+    Vector &get(int index) {
+      printf("VectorArray extended get: %p %d\n",$self,index);
+      return (*$self)[index];
+    }
+    void set(int index, Vector &a) {
+      (*$self)[index] = a;
+    }
+  }
+};