public function parseRecurrences($event)
{
$recurring = new Recurrence($event['RRULE']);
$exclusions = [];
$additions = [];
if (!empty($event['EXDATES'])) {
foreach ($event['EXDATES'] as $exDate) {
if (is_array($exDate)) {
foreach ($exDate as $singleExDate) {
$exclusions[] = $singleExDate->getTimestamp();
}
} else {
$exclusions[] = $exDate->getTimestamp();
}
}
}
if (!empty($event['RDATES'])) {
foreach ($event['RDATES'] as $rDate) {
if (is_array($rDate)) {
foreach ($rDate as $singleRDate) {
$additions[] = $singleRDate->getTimestamp();
}
} else {
$additions[] = $rDate->getTimestamp();
}
}
}
$until = $recurring->getUntil();
if ($until === false) {
//forever... limit to 3 years
$end = clone $event['DTSTART'];
$end->add(new \DateInterval('P3Y'));
// + 3 years
$recurring->setUntil($end);
$until = $recurring->getUntil();
}
date_default_timezone_set($event['DTSTART']->getTimezone()->getName());
$frequency = new Freq($recurring->rrule, $event['DTSTART']->getTimestamp(), $exclusions, $additions);
$recurrenceTimestamps = $frequency->getAllOccurrences();
$recurrences = [];
foreach ($recurrenceTimestamps as $recurrenceTimestamp) {
$tmp = new \DateTime("now", $event['DTSTART']->getTimezone());
$tmp->setTimestamp($recurrenceTimestamp);
$recurrences[] = $tmp;
}
return $recurrences;
}