note 52027 deleted from language.oop5.patterns by danbrown

Note Submitter: richard dot quadling at bandvulc dot co dot uk ---- Singletons and subclasses will fail because __construct has to be public SOMEWHERE in the base class and cannot be hidden in sub classes. Even if the base class is an abstract class (which helps a little). You can get abstract base class and singleton sub class working fine EXCEPT that you can create an instance of the subclass if you use new class(); rather than class::singleton(); So. After many hours of trial and error, no mixing of singletons and subclasses.