Description:
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As of PHP7, Closure::call() allows us to skip the intermediary step of binding to a different object before invoking the closure.

However, it assumes the list of arguments is known beforehand, just like call_user_func() does. For variadics that list is generally unknown. Having to rely on call_user_func_array() in this case means we're still forced to first manually bind the Closure before invoking it. Sure, it works, but from my perspective this feels like a missing part of a nice addition to PHP and is somewhat unintuitive that you can do one, but can't do the other.

In JavaScript, for example, this use case is served by separate call() and apply() function prototype methods, where apply() accepts a scope and an array of arguments while call() works like the equivalent Closure:call() in PHP7.

I would very much love to see a similar implementation in PHP and find it is a suitable, complementary addition.