Not necessarily. Unless someone is intentionally trying to be confusing, the parameter order will be consistent for a specific instantiation.

I mean that if it's array,function at line X this time, it will be next time - again, unless you are trying to intentionally break this rule through a coding acrobatics exercise.

Since it's now known (with relative confidence), it can be optimized.

If someone truly is doing wacky things then we are left exactly where we were beforehand, with a broken system. Most of the time, however, it'd be better