php: Wrap classes using only swig_object_wrapper

We no longer use PHP resources to wrap classes, and the proxy classes no
longer has a _cPtr property.

Examples/test-suite/import_nomodule.i

@@ -8,7 +8,7 @@
 
 %import "import_nomodule.h"
 
-#if !defined(SWIGJAVA) && !defined(SWIGRUBY) && !defined(SWIGCSHARP) && !defined(SWIGD) && !defined(SWIGPYTHON_BUILTIN)
+#if !defined(SWIGJAVA) && !defined(SWIGRUBY) && !defined(SWIGCSHARP) && !defined(SWIGD) && !defined(SWIGPYTHON_BUILTIN) && !defined(SWIGPHP)
 
 /**
  * The proxy class does not have Bar derived from Foo, yet an instance of Bar
@@ -16,8 +16,8 @@
  * language modules).
  * 
  * This violation of the type system is not possible in Java, C# and D due to
- * static type checking. It's also not (currently) possible in Ruby, but this may
- * be fixable (needs more investigation).
+ * static type checking. It's also not (currently) possible in PHP or Ruby, but
+ * this may be fixable (needs more investigation).
  */
 
 %newobject create_Foo;

Examples/test-suite/php/director_unroll_runme.php

@@ -21,9 +21,7 @@ $b = new Bar();
 $b->set($a);
 $c = $b->get();
 
-// FIXME: This doesn't work for checking that they wrap the same C++ object
-// because the two objects have different PHP resources, and we can't easily
-// look inside those resources to see which C++ objects they refer to.
-//check::equal($a->_cPtr, $c->_cPtr, "_cPtr check failed");
+// FIXME: The python version checks that a.this == c.this, but we don't seem
+// to have a way to check this with the PHP bindings we generate.
 
 check::done();

Examples/test-suite/php/import_nomodule_runme.php

@@ -9,6 +9,10 @@ check::classes(array('import_nomodule','Bar'));
 // now new vars
 check::globals(array());
 
+// SWIGPHP doesn't currently support the "violation of the type system" which
+// is tested by this testcase.
+exit(0);
+
 $f = import_nomodule::create_Foo();
 import_nomodule::test1($f,42);
 import_nomodule::delete_Foo($f);