Boolean Parameter to 3 Options?

[Matt Neimeyer <matt@xxxxxxxxxxxx>]

I have a function that currently takes a boolean value as a parameter.
But now I want to expand it to 3 options...  So if I have...

function doFooBar($doFoo = false)
   {
   if($doFoo)
      { echo "Did Foo"; }
   else
      { echo "Did Bar"; }
   }

Is it as "simple" as changing it like follows to avoid having to
change existing code that won't use the new values.

function doFooBar($doFoo = 0)
   {
   if($doFoo == 2)
      { echo "Did Baz"; }
   else if($doFoo == 1)
      { echo "Did Foo"; }
   else
      { echo "Did Bar"; }
   }

Something about that disturbs me. Perhaps because any time I think "Oh
it will be as simple as..." it usually isn't.

Thanks in advance!

Matt

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