Add option to set rrule from string about ical HOT 9 OPEN

        if($this->name != "RRULE")
            $line .= ':' . $this->value->getEscapedValue();
        else
            $line .= ':' . stripslashes($this->value->getEscapedValue());

    public function setRecurrenceRule(RecurrenceRule $recurrenceRule)
    {
        $this->recurrenceRule = $recurrenceRule;

        return $this;
    }

    public function setRecurrenceRule($recurrenceRule)
    {
        $this->recurrenceRule = $recurrenceRule;
        return $this;
    }

// Even though we already have an RRULE string,
// the library doesn't allow us to simply use it.
// We have to deconstruct it, create a RecurrenceRule object,
// then have the object reconstruct the string. Phew.
// See: https://github.com/markuspoerschke/iCal/issues/37
$rruleStr = $date['rrule'];
$recurrenceRule = new RecurrenceRule();
$rruleSplit = explode(';', $rruleStr);
foreach ($rruleSplit as $rruleProp) {
  if (str_contains($rruleProp, 'FREQ')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setFreq($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'INTERVAL')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setInterval($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'BYSECOND')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setBySecond($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'BYMINUTE')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setByMinute($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'BYHOUR')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setByHour($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'BYDAY')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setByDay($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'BYMONTHDAY')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setByMonthDay($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'BYYEARDAY')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setByYearDay($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'BYWEEKNO')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setByWeekNo($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'BYMONTH')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setByMonth($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'BYSETPOS')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setBySetPos($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'WKST')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setWkst($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'UNTIL')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setUntil($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'COUNT')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setCount($rrulePropVal);
  }
  else if (str_contains($rruleProp, 'INTERVAL')) {
    $rrulePropVal = explode('=', $rruleProp)[1];
    $recurrenceRule->setInterval($rrulePropVal);
  }
}

$iCalendarEvent->addRecurrenceRule($recurrenceRule);