function degree var var int var while true var int floor var var var i

function degree($var)
{
  $var = (int) $var;
  
  while (true) 
  {
      $var = (int) floor($var/2);
      $a = $var % 2;
      $b = $var / 2;
      if ($a == 1 || $b == 1)
      {
      	break;
      }
  }
  if ($var == 2)
  {
    return true;
  }
  else 
  {
    return false;
  }
}