what is/are the benefit(s) of having multiple spl_autoload_register
example:
spl_autoload_register('autoload_systems');
spl_autoload_register('autoload_thirdparties');
spl_autoload_register('autoload_services');
vs:
using one
spl_autoload_register('autoload');
or __autoload();
and then do the logic inside the function.
eg:
$ftp = new systems_ftp();
$services = new services_cron_email();
If you have one __autoload()
and you include a third party library which also had one, it would be clobbered.
Registering multiple autoloads with spl_autoload_register()
ensures you can have your code dropped in with existing code (think libraries, etc) without clobbering or shadowing of existing/future autoloads.
In addition, the PHP manual states...
spl_autoload_register()
provides a more flexible alternative for autoloading classes. For this reason, using__autoload()
is discouraged and may be deprecated or removed in the future.