This is the way to go imho. Remove the $ in the parameter names though (so account => "test" instead of $account => "test") I like this idiom: 
sub build_url {
  my %param = ( fname => "default value",
                ...,
                @_
               );
  ...
  # do stuff with $param{account} etc.
}

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In reply to Re^2: Values passed into a sub routine by believer
in thread Values passed into a sub routine by Anonymous Monk

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