I have this: (note that $info is an Assoc Array

while (list ($key, $val) = each ($info))
   do stuff

I would like to do slightly different stuff if I'm at the very first, or
very last item in the array.  How do I do this.  Below is the pseudo code
which would be ideal:

while (list ($key, $val) = each ($info))
    if(onFirstKey or onLastKey)
      do fun stuff
      do other stuff

Please help.  Thanks

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