/** * Get the difference in hours using a filter callable * * @param callable $callback The callback to use for filtering. * @param ChronosInterface|null $dt The instance to difference from. * @param bool $abs Get the absolute of the difference * @return int */ public function diffInHoursFiltered(callable $callback, ChronosInterface $dt = null, $abs = true) { return $this->diffFiltered(ChronosInterval::hour(), $callback, $dt, $abs); }