[php] Add runmes for more director testcases

Examples/test-suite/php/director_wombat_runme.php

@@ -0,0 +1,52 @@
+<?php
+
+require "tests.php";
+
+// No new functions
+check::functions(array());
+check::classes(array('Bar', 'Foo_integers'));
+// No new vars
+check::globals(array());
+
+// Test base class functionality
+$barObj = new Bar();
+
+// Bar::meth should return a Foo_integers instance
+$fooIntsObj = $barObj->meth();
+check::equal(get_class($fooIntsObj), "Foo_integers", "wrong class");
+
+check::equal($fooIntsObj->meth(42) , 42, "Foo_integers::meth(n) should return n");
+
+//
+// Now subclass Foo_integers, but override its virtual method
+// meth(n) so that it returns the number plus one.
+//
+class MyFooInts extends Foo_integers {
+  function meth($n) {
+    return $n + 1;
+  }
+}
+
+//
+// Subclass Bar and override its virtual method meth()
+// so that it returns a new MyFooInts instance instead of
+// a Foo_integers instance.
+//
+class MyBar extends Bar {
+  function meth() {
+    return new MyFooInts();
+  }
+}
+
+//
+// Now repeat previous tests:
+//
+// Create a MyBar instance...
+//
+$barObj = new MyBar();
+
+// MyBar::meth should return a MyFooInts instance
+$fooIntsObj = $barObj->meth();
+check::equal(get_class($fooIntsObj), "MyFooInts", "wrong class");
+
+check::equal($fooIntsObj->meth(42) , 43, "MyFooInts::meth(n) should return n + 1");