/** * Answer the previous date whose weekday name is dayName. * * @param string $dayNameString * @return object Date * @access public * @since 5/23/05 */ function previousDayNamed($dayNameString) { $days = abs($this->dayOfWeek() - Week::indexOfDay($dayNameString) % 7); if ($days == 0) { $days = 7; } $obj = $this->subtractDays($days); return $obj; }