This will actually be (a little) slower, because you're going through another level of indirection. As japhy and TGI have already pointed out, copying a large data structure to the stack for a subroutine is often more expensive.

What you gain in this case is nothing. You're also using a few bytes more memory in your snippet than you would be using without the reference -- just not enough to count.

However, when you want to pass two arrays into a function, you'll be very glad you know how to take a reference to an array.

In general, unless you need to use them, don't.

In reply to Re: Is it worth the reference? by chromatic
in thread Is it worth the reference? by meonkeys

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