[PHP-INTERNALS] Order of parent and child classes in EG(class_table)

I think it's not written anywhere it should be so, but in fact it always
would be so since when you are defining child class you have to have
parent already in the class table. So unless some very nasty extension
would define classes in different order, it is always so.

Logically it should be, but you cannot be sure it will be ALWAYS like
that. 99% of the time it probably is, but sometimes things aren't
going the way you expected :P

Tijnema

What about the case where dl() is used? AFAIK the classes defined in
dl()'ed files always go at the end of the class table.

-Andrei

Any class that is defined goes at the end of the class table existing at
the time, no matter if it's dl() or not. If loaded extension defines
classes derived from existing ones, they would be after existing
classes. If it defines both parent and child class, then in theory it
could do it so that child class would enter the class table before the
parent class, but it'd be quite broken extension.