Just a quick idea - what if requiring that autoloaders behave
deterministically, that is, once a certain autoloader
implementation
has been given the possibility to find a class it will
never be asked
again (because it wouldn't find it later on either).I'm not sure if it's a correct assumption to make in general case -
files can be created.
Currently, when an autoload handler is given the chance to load a class and it does not, maybe another handler will do. Either way, the script will terminate if no handler can find the class or the class will be available after that - so already now it is impossible that any given handler is called twice during the same execution for the same class name.
Maybe I'm missing some weird cases for opcode caches or otherwise embedded PHP though?
-mp.