Hi! > I know that things like internal state and read-only properties are > possible for classes written in C, but those features aren't possible in > PHP code - classes that behave this way are inconsistent with classes
Of course they are possible. See __get/__set. But yes, internal classes work a bit differently, which is no wonder since they can use internal handlers which are not available to PHP code. > That is no help at all, when you're implementing a JSON serializer. Right, DateTime does not implement Serializable. Probably might be a good idea to make it do that. Otherwise - though in general it is not a very good idea to serialize objects which didn't declare they are serializeable, especially internal ones. But if one feels adventurous the handler to use would be get_properties, and converting to array uses this handler, so you could do that. It's the same handler serializers use to get properties, unless Serializable is implemented or __sleep is defined. > Because DateTime does not behave like other classes, the only > work-around is to explicitly handle DateTime with an > if/instanceof-statement and handle that particular class explicitly. > > There are plenty of work-arounds - the point is that this class doesn't > behave consistently with any other PHP class. It does. It's just PHP classes can behave in more ways than you think :) And to some of the ways there's no good access from PHP space. -- Stas Malyshev smalys...@gmail.com -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
