Diogo is part of a "specialist" team that was brought in to replace a handful of other developers who had spent the past year or so unsuccessfully building an accounting system. Since the project was months behind deadline and had never produced a working deliverable, management dismissed the team and handed the "specialists" the code with the hopes that they could "just make it work." Looking at the code from the old team, I think this should be a fairly easy task; after all, everything is completely self-documenting.

function return_signature($SIGNATURE)
{
  return $SIGNATURE;
}

function return_note($NOTE)
{
  return $NOTE;
}

function return_false()
{
     return false;
}

function return_opposite_of_search_list($search_list)
{
  if ($search_list == '0') return true;
  return false;
}