251     protected $byDay;  variable in Sabre\\VObject\\Recur\\RRuleIterator
336         if (!$this->byHour && !$this->byDay) {
345         if (!empty($this->byDay)) {
377             ($this->byDay && !in_array($currentDay, $recurrenceDays)) ||
391         if (!$this->byHour && !$this->byDay) {
400         if ($this->byDay) {
433 …} while (($this->byDay && !in_array($currentDay, $recurrenceDays)) || ($this->byHour && !in_array(…
444         if (!$this->byMonthDay && !$this->byDay) {
542                 if ($this->byDay) {
543                     foreach ($this->byDay as $byDay) {
544                         $dayOffsets[] = $this->dayMap[$byDay];
579                 if ($this->byDay) {
580                     foreach ($this->byDay as $byDay) {
581                         $dayOffsets[] = $this->dayMap[$byDay];
631         if ($this->byDay || $this->byMonthDay) {
781                     $this->byDay = $value;
863         if ($this->byDay) foreach ($this->byDay as $day) {
932         if ($this->byMonthDay && $this->byDay) {
992         foreach ($this->byDay as $byDay) {
997             $recurrenceDays[] = $this->dayMap[substr($byDay, -2)];