> At the point we're talking about composer integrating callbacks,
> preloading lists etc, isn't it about time that an spl_autoload_list was
> added that accepted the standard composer classmap [class_id => path]
> and forewent most autoload callbacks entirely?
To be honest, at this point autoloading is barely necessary: just ensure
OpCache is configured correctly and preload all the files. When I tested an
exhaustive class map with OpCache disabled, it was actually slightly slower
than a "non-optimized" autoloader, presumably because the array definition
itself takes so long to compile.