Updated examples to function correctly with new php4 module. Added

some supplemental examples for cpointer, overloading and references using
proxies.


git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@7391 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/php4/class/example.h

@@ -13,6 +13,7 @@ public:
   virtual double area(void) = 0;
   virtual double perimeter(void) = 0;
   static  int nshapes;
+  static  int get_nshapes();
 };
 
 class Circle : public Shape {
@@ -20,6 +21,8 @@ private:
   double radius;
 public:
   Circle(double r) : radius(r) { };
+  ~Circle() { };
+  void set_radius( double r );
   virtual double area(void);
   virtual double perimeter(void);
 };
@@ -29,6 +32,7 @@ private:
   double width;
 public:
   Square(double w) : width(w) { };
+  ~Square() { }
   virtual double area(void);
   virtual double perimeter(void);
 };