I prefer approach 1 for the following reasons.
a) It's easy to read.
b) It allows you to change the value $notice on a whim.

I've never really thought of using approach 2 or 3 before. It would seem that they are not re-usable. I suppose approach 2 could print a variable passed in as a parameter rather than a string. That would make it re-usable but it would be very cumbersome to call it.

mr greywolf