'#NULL!', 0x07 => '#DIV/0!', 0x0F => '#VALUE!', 0x17 => '#REF!', 0x1D => '#NAME?', 0x24 => '#NUM!', 0x2A => '#N/A', ); /** * Map error code, e.g. '#N/A' * * @param int $code * @return string */ public static function lookup($code) { if (isset(self::$map[$code])) { return self::$map[$code]; } return false; } }