class UserHome {
   public function GetAllUsersWithFirstNameBeginningWith($strLetter) {
      $sql = new sql();
      $strLetter = strtolower($strLetter);
      $sql->query("SELECT id FROM \"uzytkownik\" WHERE lower(imie) LIKE '$strLetter%'");
      $result_rows = $sql->get_table_hash();
      $arUserObjects = Array();
      for ($i=0; $i<=sizeof($result_rows)-1; $i++) {
         $arUserObjects[] = new User($result_rows[$i]["id"]);
      };
      return($arUserObjects);
   }
};