> My only question: why does this implementation care if you specify too many > arguments when PHP doesn’t care if you call a function with too many > arguments?
That is only true for userland functions, by the way. Internal functions do care. Historically, we could not do anything about this because variadic functions were only introduced in 5.6, so many functions did not specify that they were variadic and just used func_get_args(). Additionally, some people think it should be unified the other way--internal functions should accept extra args. Anyway, there you go on some history and reasoning of why it is the way it is.
