function get_repeats_between($event, $gmt_start, $gmt_end, $limit, $events)
{
global $ICAL_EVENTS_REPEAT_INTERVALS;
$rrule = $event['Repeat'];
$repeats = array();
//print_r($rrule);
if (isset($ICAL_EVENTS_REPEAT_INTERVALS[$rrule['Interval']])) {
$interval = $ICAL_EVENTS_REPEAT_INTERVALS[$rrule['Interval']] * ($rrule['Frequency'] ? $rrule['Frequency'] : 1);
$repeat_days = ICalEvents::get_repeat_days($rrule['RepeatDays']);
$t = getdate($event['StartTime']);
$exceptions_array = array();
$exceptions_array = $rrule['Exceptions'];
foreach ($events as $value) {
if ($value['UID'] == $event['UID'] && !empty($value['RecurrenceID'])) {
$exceptions_array[] = $value['RecurrenceID'];
}
}
$repeat = null;
$count = 0;
while ($count <= ICAL_EVENTS_MAX_REPEATS) {
if (isset($rrule['ByMonthDay'])) {
if ($count > 0) {
$repeat = $event;
unset($repeat['Repeat']);
$repeat['StartTime'] = mktime($t['hours'], $t['minutes'], $t['seconds'], $t['mon'] + $count, $rrule['ByMonthDay'], $t['year']);
$repeat['EndTime'] = $repeat['StartTime'] - $event['StartTime'];
if (!ICalEvents::is_duplicate($repeat, $event) && ICalEvents::falls_between($repeat, $gmt_start, $gmt_end) && !@in_array($repeat['StartTime'], $exceptions_array)) {
$repeats[] = $repeat;
}
}
} else {
if ($repeat_days) {
foreach ($repeat_days as $repeat_day => $repeat_week) {
$repeat = ICalEvents::get_repeat($event, $interval, $count, $repeat_day, $repeat_week);
if (!ICalEvents::is_duplicate($repeat, $event) and ICalEvents::falls_between($repeat, $gmt_start, $gmt_end) && !@in_array($repeat['StartTime'], $exceptions_array)) {
$repeats[] = $repeat;
}
if (ICalEvents::after_rrule_end_time($repeat, $rrule)) {
break;
}
}
} else {
$repeat = ICalEvents::get_simple_repeat($event, $interval, $count);
if (!ICalEvents::is_duplicate($repeat, $event) and ICalEvents::falls_between($repeat, $gmt_start, $gmt_end) && !@in_array($repeat['StartTime'], $exceptions_array)) {
$repeats[] = $repeat;
}
}
}
if (ICalEvents::after_rrule_end_time($repeat, $rrule)) {
break;
}
// Don't repeat past the user-defined limit, if one exists
if ($limit and $count >= $limit) {
break;
}
++$count;
}
} else {
echo "Unknown repeat interval: {$rr['Interval']}";
}
return $repeats;
}
