@strat:
[quote=Private Variables via my(),perlsub]       NOTE: The behaviour of a "my" statement modified with a statement modifier conditional or
      loop construct (e.g. "my $x if ...") is undefined.  The value of the "my" variable may be
      "undef", any previously assigned value, or possibly anything else.  Don't rely on it.
      Future versions of perl might do something different from the version of perl you try it out
      on.  Here be dragons.
[/quote]