Ejemplo n.º 1
0
function extractDateTime($data, $property, $field)
{
    global $tz_array;
    // Initialize values.
    unset($unixtime, $date, $time, $allday);
    $allday = '';
    #suppress error on returning undef.
    // Check for zulu time.
    $zulu_time = false;
    if (substr($data, -1) == 'Z') {
        $zulu_time = true;
    }
    $data = str_replace('Z', '', $data);
    // Remove some substrings we don't want to look at.
    $data = str_replace('T', '', $data);
    $field = str_replace(';VALUE=DATE-TIME', '', $field);
    // Extract date-only values.
    if (preg_match('/^' . $property . ';VALUE=DATE/i', $field) || ereg('^([0-9]{4})([0-9]{2})([0-9]{2})$', $data)) {
        // Pull out the date value. Minimum year is 1970.
        ereg('([0-9]{4})([0-9]{2})([0-9]{2})', $data, $dt_check);
        if ($dt_check[1] < 1970) {
            $data = '1971' . $dt_check[2] . $dt_check[3];
        }
        // Set the values.
        $unixtime = strtotime($data);
        $date = date('Ymd', $unixtime);
        $allday = $data;
    } else {
        // Pull out the timezone, or use GMT if zulu time was indicated.
        if (preg_match('/^' . $property . ';TZID=/i', $field)) {
            $tz_tmp = explode('=', $field);
            $tz_dt = $tz_tmp[1];
            unset($tz_tmp);
        } elseif ($zulu_time) {
            $tz_dt = 'GMT';
        }
        // Pull out the date and time values. Minimum year is 1970.
        preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})/', $data, $regs);
        if ($regs[1] < 1970) {
            $regs[1] = '1971';
        }
        $date = $regs[1] . $regs[2] . $regs[3];
        $time = $regs[4] . $regs[5];
        $unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);
        // Check for daylight savings time.
        $dlst = date('I', $unixtime);
        $server_offset_tmp = chooseOffset($unixtime);
        if (isset($tz_dt)) {
            if (array_key_exists($tz_dt, $tz_array)) {
                $offset_tmp = $tz_array[$tz_dt][$dlst];
            } else {
                $offset_tmp = '+0000';
            }
        } elseif (isset($calendar_tz)) {
            if (array_key_exists($calendar_tz, $tz_array)) {
                $offset_tmp = $tz_array[$calendar_tz][$dlst];
            } else {
                $offset_tmp = '+0000';
            }
        } else {
            $offset_tmp = $server_offset_tmp;
        }
        // Set the values.
        $unixtime = calcTime($offset_tmp, $server_offset_tmp, $unixtime);
        $date = date('Ymd', $unixtime);
        $time = date('Hi', $unixtime);
    }
    // Return the results.
    return array($unixtime, $date, $time, $allday);
}
Ejemplo n.º 2
0
             $recurrence_id[] = $eachval[1];
         }
     }
     unset($parts, $part, $eachval);
     $data = str_replace('T', '', $data);
     $data = str_replace('Z', '', $data);
     ereg('([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})', $data, $regs);
     $recurrence_id['date'] = $regs[1] . $regs[2] . $regs[3];
     $recurrence_id['time'] = $regs[4] . $regs[5];
     $recur_unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);
     if (isset($recurrence_id['tzid'])) {
         $offset_tmp = chooseOffset($recur_unixtime, $recurrence_id['tzid']);
     } elseif (isset($calendar_tz)) {
         $offset_tmp = chooseOffset($recur_unixtime, $calendar_tz);
     } else {
         $offset_tmp = chooseOffset($recur_unixtime);
     }
     $recur_unixtime = calcTime($offset_tmp, @$server_offset_tmp, $recur_unixtime);
     $recurrence_id['date'] = date('Ymd', $recur_unixtime);
     $recurrence_id['time'] = date('Hi', $recur_unixtime);
     $recurrence_d = date('Ymd', $recur_unixtime);
     $recurrence_t = date('Hi', $recur_unixtime);
     unset($server_offset_tmp);
     break;
 case 'SEQUENCE':
     $sequence = $data;
     break;
 case 'UID':
     $uid = $data;
     break;
 case 'X-WR-CALNAME':
Ejemplo n.º 3
0
function extractDateTime($data, $property, $field)
{
    global $tz_array, $phpiCal_config, $calendar_tz;
    $allday = '';
    #suppress error on returning undef.
    // Check for zulu time.
    $zulu_time = false;
    if (substr($data, -1) == 'Z') {
        $zulu_time = true;
    }
    // Pull out the timezone, or use GMT if zulu time was indicated.
    if (preg_match('/^' . $property . ';TZID=/i', $field)) {
        $tz_tmp = explode('=', $field);
        $tz_dt = match_tz($tz_tmp[1]);
        #echo "$tz_dt<br>";
    } elseif ($zulu_time) {
        $tz_dt = 'GMT';
    }
    // Extract date-only values.
    if (preg_match('/^' . $property . ';VALUE=DATE:/i', $field) || ereg('^([0-9]{4})([0-9]{2})([0-9]{2})$', $data)) {
        // Pull out the date value. Minimum year is 1970.
        ereg('([0-9]{4})([0-9]{2})([0-9]{2})', $data, $dt_check);
        if ($dt_check[1] < 1970) {
            $dt_check[1] = '1970';
        }
        # convert to date-time
        $data = $dt_check[1] . $dt_check[2] . $dt_check[3] . "T000000";
        $time = '';
        $allday = $data;
    }
    // Extract date-time values.
    // Pull out the date and time values. Minimum year is 1970.
    preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})T{0,1}([0-9]{0,2})([0-9]{0,2})/', $data, $regs);
    if (!isset($regs[1])) {
        return;
    }
    if ($regs[1] < 1970) {
        $regs[1] = '1970';
    }
    $date = $regs[1] . $regs[2] . $regs[3];
    $time = $regs[4] . $regs[5];
    $unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);
    # chooseOffset checks for Daylight Saving Time
    $server_offset_tmp = chooseOffset($unixtime, $phpiCal_config->timezone);
    if (isset($tz_dt)) {
        $offset_tmp = chooseOffset($unixtime, $tz_dt);
    } elseif (isset($calendar_tz)) {
        $offset_tmp = chooseOffset($unixtime, $calendar_tz);
        $tz_dt = $calendar_tz;
    } else {
        $offset_tmp = $server_offset_tmp;
        $tz_dt = $phpiCal_config->timezone;
    }
    // Set the values.
    if ($allday == '') {
        $unixtime = calcTime($offset_tmp, $server_offset_tmp, $unixtime);
    }
    #echo "offset_tmp $offset_tmp, server_offset_tmp $server_offset_tmp, $unixtime =".date("Ymd His",$unixtime)." $time<br>";
    $date = date('Ymd', $unixtime);
    if ($allday == '') {
        $time = date('Hi', $unixtime);
    }
    // Return the results.
    return array($unixtime, $date, $time, $allday, $tz_dt);
}
Ejemplo n.º 4
0
function icalToArray($filename, $fromdate, $todate)
{
    //      $filename = "/var/www/phpicalendar/calendars/pepe.ics";
    $timezone = "America/Buenos_Aires";
    $tz_array['America/Buenos_Aires'] = array('-0300', '-0300');
    $master_array = array();
    $ifile = @fopen($filename, "r");
    if ($ifile == FALSE) {
        exit("Cant Open file: " . $filename . "\n");
    }
    $nextline = fgets($ifile, 1024);
    if (trim($nextline) != 'BEGIN:VCALENDAR') {
        exit("It is not a valid ical file: " . $filename . "\n");
    }
    //     $master_array['-4'] = Array ( Array  ( 'mtime' => 1182541233, 'filename'  => './calendars/pepe.ics','webcal' => 'no'));
    //     $master_array['-3'] = Array  ( 'pepe');
    // Set a value so we can check to make sure $master_array contains valid data
    $master_array['-1'] = 'valid cal file';
    // Set default calendar name - can be overridden by X-WR-CALNAME
    $calendar_name = $cal_filename;
    $master_array['calendar_name'] = $calendar_name;
    $overlap_array = array();
    // read file in line by line
    // XXX end line is skipped because of the 1-line readahead
    while (!feof($ifile)) {
        $line = $nextline;
        $nextline = fgets($ifile, 1024);
        $nextline = ereg_replace("[\r\n]", "", $nextline);
        #handle continuation lines that start with either a space or a tab (MS Outlook)
        while ($nextline[0] == " " || $nextline[0] == "\t") {
            $line = $line . substr($nextline, 1);
            $nextline = fgets($ifile, 1024);
            $nextline = ereg_replace("[\r\n]", "", $nextline);
        }
        $line = trim($line);
        switch ($line) {
            case 'BEGIN:VEVENT':
                // each of these vars were being set to an empty string
                unset($start_time, $end_time, $start_date, $end_date, $summary, $allday_start, $allday_end, $start, $end, $the_duration, $beginning, $rrule_array, $start_of_vevent, $description, $url, $valarm_description, $start_unixtime, $end_unixtime, $display_end_tmp, $end_time_tmp1, $recurrence_id, $uid, $class, $location, $rrule, $abs_until, $until_check, $until, $bymonth, $byday, $bymonthday, $byweek, $byweekno, $byminute, $byhour, $bysecond, $byyearday, $bysetpos, $wkst, $interval, $number);
                $except_dates = array();
                $except_times = array();
                $bymonth = array();
                $bymonthday = array();
                $first_duration = TRUE;
                $count = 1000000;
                $valarm_set = FALSE;
                $attendee = array();
                $organizer = array();
                break;
            case 'END:VEVENT':
                if (!isset($url)) {
                    $url = '';
                }
                if (!isset($type)) {
                    $type = '';
                }
                // Handle DURATION
                if (!isset($end_unixtime) && isset($the_duration)) {
                    $end_unixtime = $start_unixtime + $the_duration;
                    $end_time = date('Hi', $end_unixtime);
                }
                // CLASS support
                if (isset($class)) {
                    if ($class == 'PRIVATE') {
                        $summary = '**PRIVATE**';
                        $description = '**PRIVATE**';
                    } elseif ($class == 'CONFIDENTIAL') {
                        $summary = '**CONFIDENTIAL**';
                        $description = '**CONFIDENTIAL**';
                    }
                }
                // make sure we have some value for $uid
                if (!isset($uid)) {
                    $uid = $uid_counter;
                    $uid_counter++;
                    $uid_valid = false;
                } else {
                    $uid_valid = true;
                }
                if ($uid_valid && isset($processed[$uid]) && isset($recurrence_id['date'])) {
                    $old_start_date = $processed[$uid][0];
                    $old_start_time = $processed[$uid][1];
                    if ($recurrence_id['value'] == 'DATE') {
                        $old_start_time = '-1';
                    }
                    $start_date_tmp = $recurrence_id['date'];
                    if (!isset($start_date)) {
                        $start_date = $old_start_date;
                    }
                    if (!isset($start_time)) {
                        $start_time = $master_array[$old_start_date][$old_start_time][$uid]['event_start'];
                    }
                    if (!isset($start_unixtime)) {
                        $start_unixtime = $master_array[$old_start_date][$old_start_time][$uid]['start_unixtime'];
                    }
                    if (!isset($end_unixtime)) {
                        $end_unixtime = $master_array[$old_start_date][$old_start_time][$uid]['end_unixtime'];
                    }
                    if (!isset($end_time)) {
                        $end_time = $master_array[$old_start_date][$old_start_time][$uid]['event_end'];
                    }
                    if (!isset($summary)) {
                        $summary = $master_array[$old_start_date][$old_start_time][$uid]['event_text'];
                    }
                    if (!isset($length)) {
                        $length = $master_array[$old_start_date][$old_start_time][$uid]['event_length'];
                    }
                    if (!isset($description)) {
                        $description = $master_array[$old_start_date][$old_start_time][$uid]['description'];
                    }
                    if (!isset($location)) {
                        $location = $master_array[$old_start_date][$old_start_time][$uid]['location'];
                    }
                    if (!isset($organizer)) {
                        $organizer = $master_array[$old_start_date][$old_start_time][$uid]['organizer'];
                    }
                    if (!isset($status)) {
                        $status = $master_array[$old_start_date][$old_start_time][$uid]['status'];
                    }
                    if (!isset($attendee)) {
                        $attendee = $master_array[$old_start_date][$old_start_time][$uid]['attendee'];
                    }
                    if (!isset($url)) {
                        $url = $master_array[$old_start_date][$old_start_time][$uid]['url'];
                    }
                    removeOverlap($start_date_tmp, $old_start_time, $uid, $master_array, $overlap_array);
                    if (isset($master_array[$start_date_tmp][$old_start_time][$uid])) {
                        unset($master_array[$start_date_tmp][$old_start_time][$uid]);
                        // SJBO added $uid twice here
                        if (sizeof($master_array[$start_date_tmp][$old_start_time]) == 0) {
                            unset($master_array[$start_date_tmp][$old_start_time]);
                        }
                    }
                    $write_processed = false;
                } else {
                    $write_processed = true;
                }
                if (!isset($summary)) {
                    $summary = '';
                }
                if (!isset($description)) {
                    $description = '';
                }
                if (!isset($status)) {
                    $status = '';
                }
                if (!isset($class)) {
                    $class = '';
                }
                if (!isset($location)) {
                    $location = '';
                }
                $mArray_begin = mktime(0, 0, 0, 12, 21, $this_year - 1);
                $mArray_end = mktime(0, 0, 0, 1, 12, $this_year + 1);
                if (isset($start_time) && isset($end_time)) {
                    // Mozilla style all-day events or just really long events
                    if ($end_time - $start_time > 2345) {
                        $allday_start = $start_date;
                        $allday_end = $start_date + 1;
                    }
                }
                if (isset($start_unixtime, $end_unixtime) && date('Ymd', $start_unixtime) != date('Ymd', $end_unixtime)) {
                    $spans_day = true;
                    $bleed_check = $start_unixtime - $end_unixtime < 60 * 60 * 24 ? '-1' : '0';
                } else {
                    $spans_day = false;
                    $bleed_check = 0;
                }
                if (isset($start_time) && $start_time != '') {
                    preg_match('/([0-9]{2})([0-9]{2})/', $start_time, $time);
                    preg_match('/([0-9]{2})([0-9]{2})/', $end_time, $time2);
                    if (isset($start_unixtime) && isset($end_unixtime)) {
                        $length = $end_unixtime - $start_unixtime;
                    } else {
                        $length = $time2[1] * 60 + $time2[2] - ($time[1] * 60 + $time[2]);
                    }
                    $drawKey = drawEventTimes($start_time, $end_time);
                    preg_match('/([0-9]{2})([0-9]{2})/', $drawKey['draw_start'], $time3);
                    $hour = $time3[1];
                    $minute = $time3[2];
                }
                // RECURRENCE-ID Support
                if (isset($recurrence_d)) {
                    $recurrence_delete["{$recurrence_d}"]["{$recurrence_t}"] = $uid;
                }
                // handle single changes in recurring events
                // Maybe this is no longer need since done at bottom of parser? - CL 11/20/02
                if ($uid_valid && $write_processed) {
                    if (!isset($hour)) {
                        $hour = 00;
                    }
                    if (!isset($minute)) {
                        $minute = 00;
                    }
                    $processed[$uid] = array($start_date, $hour . $minute, $type);
                }
                // Handling of the all day events
                if (isset($allday_start) && $allday_start != '') {
                    $start = strtotime($allday_start);
                    if ($spans_day) {
                        $allday_end = date('Ymd', $end_unixtime);
                    }
                    if (isset($allday_end)) {
                        $end = strtotime($allday_end);
                    } else {
                        $end = strtotime('+1 day', $start);
                    }
                    // Changed for 1.0, basically write out the entire event if it starts while the array is written.
                    # while loop handles multi-day allday events to write separate master_array elements for each day.
                    if ($start < $mArray_end && $start < $end) {
                        while ($start != $end && $start < $mArray_end) {
                            $start_date2 = date('Ymd', $start);
                            $master_array[$start_date2]['-1'][$uid] = array('event_text' => $summary, 'description' => $description, 'location' => $location, 'organizer' => serialize($organizer), 'attendee' => serialize($attendee), 'calnumber' => $calnumber, 'calname' => $actual_calname, 'url' => $url, 'status' => $status, 'class' => $class);
                            $start = strtotime('+1 day', $start);
                        }
                        if (!$write_processed) {
                            $master_array[$start_date]['-1'][$uid]['exception'] = true;
                        }
                    }
                }
                // Handling regular events
                if (isset($start_time) && $start_time != '' && (!isset($allday_start) || $allday_start == '')) {
                    if ($end_time >= $bleed_time && $bleed_check == '-1') {
                        $start_tmp = strtotime(date('Ymd', $start_unixtime));
                        $end_date_tmp = date('Ymd', $end_unixtime);
                        while ($start_tmp < $end_unixtime) {
                            $start_date_tmp = date('Ymd', $start_tmp);
                            if ($start_date_tmp == $start_date) {
                                $time_tmp = $hour . $minute;
                                $start_time_tmp = $start_time;
                            } else {
                                $time_tmp = '0000';
                                $start_time_tmp = '0000';
                            }
                            if ($start_date_tmp == $end_date_tmp) {
                                $end_time_tmp = $end_time;
                            } else {
                                $end_time_tmp = '2400';
                                $display_end_tmp = $end_time;
                            }
                            $master_array[$start_date_tmp][$time_tmp][$uid] = array('event_start' => $start_time_tmp, 'event_end' => $end_time_tmp, 'start_unixtime' => $start_unixtime, 'end_unixtime' => $end_unixtime, 'event_text' => $summary, 'event_length' => $length, 'event_overlap' => 0, 'description' => $description, 'status' => $status, 'class' => $class, 'spans_day' => true, 'location' => $location, 'organizer' => serialize($organizer), 'attendee' => serialize($attendee), 'calnumber' => $calnumber, 'calname' => $actual_calname, 'url' => $url);
                            if (isset($display_end_tmp)) {
                                $master_array[$start_date_tmp][$time_tmp][$uid]['display_end'] = $display_end_tmp;
                            }
                            checkOverlap($start_date_tmp, $time_tmp, $uid, $master_array, $overlap_array);
                            $start_tmp = strtotime('+1 day', $start_tmp);
                        }
                        if (!$write_processed) {
                            $master_array[$start_date][$hour . $minute][$uid]['exception'] = true;
                        }
                    } else {
                        if ($bleed_check == '-1') {
                            $display_end_tmp = $end_time;
                            $end_time_tmp1 = '2400';
                        }
                        if (!isset($end_time_tmp1)) {
                            $end_time_tmp1 = $end_time;
                        }
                        // This if statement should prevent writing of an excluded date if its the first recurrance - CL
                        if (!in_array($start_date, $except_dates)) {
                            $master_array[$start_date][$hour . $minute][$uid] = array('event_start' => $start_time, 'event_end' => $end_time_tmp1, 'start_unixtime' => $start_unixtime, 'end_unixtime' => $end_unixtime, 'event_text' => $summary, 'event_length' => $length, 'event_overlap' => 0, 'description' => $description, 'status' => $status, 'class' => $class, 'spans_day' => false, 'location' => $location, 'organizer' => serialize($organizer), 'attendee' => serialize($attendee), 'calnumber' => $calnumber, 'calname' => $actual_calname, 'url' => $url);
                            if (isset($display_end_tmp)) {
                                $master_array[$start_date][$hour . $minute][$uid]['display_end'] = $display_end_tmp;
                            }
                            checkOverlap($start_date, $hour . $minute, $uid, $master_array, $overlap_array);
                            if (!$write_processed) {
                                $master_array[$start_date][$hour . $minute][$uid]['exception'] = true;
                            }
                        }
                    }
                }
                // Handling of the recurring events, RRULE
                if (isset($rrule_array) && is_array($rrule_array)) {
                    if (isset($allday_start) && $allday_start != '') {
                        $hour = '-';
                        $minute = '1';
                        $rrule_array['START_DAY'] = $allday_start;
                        $rrule_array['END_DAY'] = $allday_end;
                        $rrule_array['END'] = 'end';
                        $recur_start = $allday_start;
                        $start_date = $allday_start;
                        if (isset($allday_end)) {
                            $diff_allday_days = dayCompare($allday_end, $allday_start);
                        } else {
                            $diff_allday_days = 1;
                        }
                    } else {
                        $rrule_array['START_DATE'] = $start_date;
                        $rrule_array['START_TIME'] = $start_time;
                        $rrule_array['END_TIME'] = $end_time;
                        $rrule_array['END'] = 'end';
                    }
                    $start_date_time = strtotime($start_date);
                    if (!isset($fromdate)) {
                        #this should happen if not in one of the rss views
                        /*						$this_month_start_time = strtotime($this_year.$this_month.'01');
                        						if ($current_view == 'year' || ($save_parsed_cals == 'yes' && !$is_webcal)|| $current_view == 'print' && $printview == 'year') {
                        							$start_range_time = strtotime($this_year.'-01-01 -2 weeks');
                        							$end_range_time = strtotime($this_year.'-12-31 +2 weeks');
                        						} else {
                        							$start_range_time = strtotime('-1 month -2 day', $this_month_start_time);
                        							$end_range_time = strtotime('+2 month +2 day', $this_month_start_time);
                        						}*/
                    } else {
                        $start_range_time = strtotime($fromdate);
                        $end_range_time = strtotime($todate) + 60 * 60 * 24;
                    }
                    foreach ($rrule_array as $key => $val) {
                        switch ($key) {
                            case 'FREQ':
                                switch ($val) {
                                    case 'YEARLY':
                                        $freq_type = 'year';
                                        break;
                                    case 'MONTHLY':
                                        $freq_type = 'month';
                                        break;
                                    case 'WEEKLY':
                                        $freq_type = 'week';
                                        break;
                                    case 'DAILY':
                                        $freq_type = 'day';
                                        break;
                                    case 'HOURLY':
                                        $freq_type = 'hour';
                                        break;
                                    case 'MINUTELY':
                                        $freq_type = 'minute';
                                        break;
                                    case 'SECONDLY':
                                        $freq_type = 'second';
                                        break;
                                }
                                $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = strtolower($val);
                                break;
                            case 'COUNT':
                                $count = $val;
                                $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $count;
                                break;
                            case 'UNTIL':
                                $until = str_replace('T', '', $val);
                                $until = str_replace('Z', '', $until);
                                if (strlen($until) == 8) {
                                    $until = $until . '235959';
                                }
                                $abs_until = $until;
                                ereg('([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})', $until, $regs);
                                $until = mktime($regs[4], $regs[5], $regs[6], $regs[2], $regs[3], $regs[1]);
                                $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = localizeDate($dateFormat_week, $until);
                                break;
                            case 'INTERVAL':
                                if ($val > 0) {
                                    $number = $val;
                                    $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $number;
                                }
                                break;
                            case 'BYSECOND':
                                $bysecond = $val;
                                $bysecond = split(',', $bysecond);
                                $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $bysecond;
                                break;
                            case 'BYMINUTE':
                                $byminute = $val;
                                $byminute = split(',', $byminute);
                                $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $byminute;
                                break;
                            case 'BYHOUR':
                                $byhour = $val;
                                $byhour = split(',', $byhour);
                                $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $byhour;
                                break;
                            case 'BYDAY':
                                $byday = $val;
                                $byday = split(',', $byday);
                                $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $byday;
                                break;
                            case 'BYMONTHDAY':
                                $bymonthday = $val;
                                $bymonthday = split(',', $bymonthday);
                                $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $bymonthday;
                                break;
                            case 'BYYEARDAY':
                                $byyearday = $val;
                                $byyearday = split(',', $byyearday);
                                $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $byyearday;
                                break;
                            case 'BYWEEKNO':
                                $byweekno = $val;
                                $byweekno = split(',', $byweekno);
                                $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $byweekno;
                                break;
                            case 'BYMONTH':
                                $bymonth = $val;
                                $bymonth = split(',', $bymonth);
                                $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $bymonth;
                                break;
                            case 'BYSETPOS':
                                $bysetpos = $val;
                                $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $bysetpos;
                                break;
                            case 'WKST':
                                $wkst = $val;
                                $master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $wkst;
                                break;
                            case 'END':
                                $recur = $master_array[$start_date][$hour . $minute][$uid]['recur'];
                                // Modify the COUNT based on BYDAY
                                if (is_array($byday) && isset($count)) {
                                    $blah = sizeof($byday);
                                    $count = $count / $blah;
                                    unset($blah);
                                }
                                if (!isset($number)) {
                                    $number = 1;
                                }
                                // if $until isn't set yet, we set it to the end of our range we're looking at
                                if (!isset($until)) {
                                    $until = $end_range_time;
                                }
                                if (!isset($abs_until)) {
                                    $abs_until = date('YmdHis', $end_range_time);
                                }
                                $end_date_time = $until;
                                $start_range_time_tmp = $start_range_time;
                                $end_range_time_tmp = $end_range_time;
                                // echo date("Ymd",$until)." ".date("Ymd",$end_range_time)."<br>";
                                // echo date("Ymd",$end_range_time_tmp)." >= ".date("Ymd",$start_date_time)." && ".date("Ymd",$start_range_time_tmp)." <= ".date("Ymd",$end_date_time)."<br>";
                                // If the $end_range_time is less than the $start_date_time, or $start_range_time is greater
                                // than $end_date_time, we may as well forget the whole thing
                                // It doesn't do us any good to spend time adding data we aren't even looking at
                                // this will prevent the year view from taking way longer than it needs to
                                if ($end_range_time_tmp >= $start_date_time && $start_range_time_tmp <= $end_date_time) {
                                    // if the beginning of our range is less than the start of the item, we may as well set it equal to it
                                    if ($start_range_time_tmp < $start_date_time) {
                                        $start_range_time_tmp = $start_date_time;
                                    }
                                    if ($end_range_time_tmp > $end_date_time) {
                                        $end_range_time_tmp = $end_date_time;
                                    }
                                    // initialize the time we will increment
                                    $next_range_time = $start_range_time_tmp;
                                    // FIXME: This is a hack to fix repetitions with $interval > 1
                                    if ($count > 1 && $number > 1) {
                                        $count = 1 + ($count - 1) * $number;
                                    }
                                    $count_to = 0;
                                    // start at the $start_range and go until we hit the end of our range.
                                    if (!isset($wkst)) {
                                        $wkst = 'SU';
                                    }
                                    $wkst3char = two2threeCharDays($wkst);
                                    while ($next_range_time >= $start_range_time_tmp && $next_range_time <= $end_range_time_tmp && $count_to != $count) {
                                        $func = $freq_type . 'Compare';
                                        $diff = $func(date('Ymd', $next_range_time), $start_date);
                                        if ($diff < $count) {
                                            if ($diff % $number == 0) {
                                                $interval = $number;
                                                switch ($rrule_array['FREQ']) {
                                                    case 'DAILY':
                                                        $next_date_time = $next_range_time;
                                                        $recur_data[] = $next_date_time;
                                                        break;
                                                    case 'WEEKLY':
                                                        // Populate $byday with the default day if it's not set.
                                                        if (!isset($byday)) {
                                                            $byday[] = strtoupper(substr(date('D', $start_date_time), 0, 2));
                                                        }
                                                        if (is_array($byday)) {
                                                            foreach ($byday as $day) {
                                                                $day = two2threeCharDays($day);
                                                                #need to find the first day of the appropriate week.
                                                                #dateOfweek uses weekstartday as a global variable. This has to be changed to $wkst,
                                                                #but then needs to be reset for other functions
                                                                $week_start_day_tmp = $week_start_day;
                                                                $week_start_day = $wkst3char;
                                                                $the_sunday = dateOfWeek(date("Ymd", $next_range_time), $wkst3char);
                                                                $next_date_time = strtotime($day, strtotime($the_sunday)) + 12 * 60 * 60;
                                                                $week_start_day = $week_start_day_tmp;
                                                                #see above reset to global value
                                                                #reset $next_range_time to first instance in this week.
                                                                if ($next_date_time < $next_range_time) {
                                                                    $next_range_time = $next_date_time;
                                                                }
                                                                // Since this renders events from $next_range_time to $next_range_time + 1 week, I need to handle intervals
                                                                // as well. This checks to see if $next_date_time is after $day_start (i.e., "next week"), and thus
                                                                // if we need to add $interval weeks to $next_date_time.
                                                                if ($next_date_time > strtotime($week_start_day, $next_range_time) && $interval > 1) {
                                                                    #	$next_date_time = strtotime('+'.($interval - 1).' '.$freq_type, $next_date_time);
                                                                }
                                                                $recur_data[] = $next_date_time;
                                                            }
                                                        }
                                                        break;
                                                    case 'MONTHLY':
                                                        if (empty($bymonth)) {
                                                            $bymonth = array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);
                                                        }
                                                        $next_range_time = strtotime(date('Y-m-01', $next_range_time));
                                                        $next_date_time = $next_date_time;
                                                        if (isset($bysetpos)) {
                                                            /* bysetpos code from dustinbutler
                                                            			start on day 1 or last day. 
                                                            			if day matches any BYDAY the count is incremented. 
                                                            			SETPOS = 4, need 4th match 
                                                            			SETPOS = -1, need 1st match 
                                                            		 	*/
                                                            $year = date('Y', $next_range_time);
                                                            $month = date('m', $next_range_time);
                                                            if ($bysetpos > 0) {
                                                                $next_day = '+1 day';
                                                                $day = 1;
                                                            } else {
                                                                $next_day = '-1 day';
                                                                $day = $totalDays[$month];
                                                            }
                                                            $day = mktime(0, 0, 0, $month, $day, $year);
                                                            $countMatch = 0;
                                                            while ($countMatch != abs($bysetpos)) {
                                                                /* Does this day match a BYDAY value? */
                                                                $thisDay = $day;
                                                                $textDay = strtoupper(substr(date('D', $thisDay), 0, 2));
                                                                if (in_array($textDay, $byday)) {
                                                                    $countMatch++;
                                                                }
                                                                $day = strtotime($next_day, $thisDay);
                                                            }
                                                            $recur_data[] = $thisDay;
                                                        } elseif (isset($bymonthday) && !isset($byday)) {
                                                            foreach ($bymonthday as $day) {
                                                                if ($day < 0) {
                                                                    $day = date('t', $next_range_time) + $day + 1;
                                                                }
                                                                $year = date('Y', $next_range_time);
                                                                $month = date('m', $next_range_time);
                                                                if (checkdate($month, $day, $year)) {
                                                                    $next_date_time = mktime(0, 0, 0, $month, $day, $year);
                                                                    $recur_data[] = $next_date_time;
                                                                }
                                                            }
                                                        } elseif (is_array($byday)) {
                                                            foreach ($byday as $day) {
                                                                ereg('([-\\+]{0,1})?([0-9]{1})?([A-Z]{2})', $day, $byday_arr);
                                                                //Added for 2.0 when no modifier is set
                                                                if ($byday_arr[2] != '') {
                                                                    $nth = $byday_arr[2] - 1;
                                                                } else {
                                                                    $nth = 0;
                                                                }
                                                                $on_day = two2threeCharDays($byday_arr[3]);
                                                                $on_day_num = two2threeCharDays($byday_arr[3], false);
                                                                if (isset($byday_arr[1]) && $byday_arr[1] == '-') {
                                                                    $last_day_tmp = date('t', $next_range_time);
                                                                    $next_range_time = strtotime(date('Y-m-' . $last_day_tmp, $next_range_time));
                                                                    $last_tmp = date('w', $next_range_time) == $on_day_num ? '' : 'last ';
                                                                    $next_date_time = strtotime($last_tmp . $on_day, $next_range_time) - $nth * 604800;
                                                                    $month = date('m', $next_date_time);
                                                                    if (in_array($month, $bymonth)) {
                                                                        $recur_data[] = $next_date_time;
                                                                    }
                                                                    #reset next_range_time to start of month
                                                                    $next_range_time = strtotime(date('Y-m-' . '1', $next_range_time));
                                                                } elseif (isset($bymonthday) && !empty($bymonthday)) {
                                                                    // This supports MONTHLY where BYDAY and BYMONTH are both set
                                                                    foreach ($bymonthday as $day) {
                                                                        $year = date('Y', $next_range_time);
                                                                        $month = date('m', $next_range_time);
                                                                        if (checkdate($month, $day, $year)) {
                                                                            $next_date_time = mktime(0, 0, 0, $month, $day, $year);
                                                                            $daday = strtolower(strftime("%a", $next_date_time));
                                                                            if ($daday == $on_day && in_array($month, $bymonth)) {
                                                                                $recur_data[] = $next_date_time;
                                                                            }
                                                                        }
                                                                    }
                                                                } elseif (isset($byday_arr[1]) && $byday_arr[1] != '-') {
                                                                    $next_date_time = strtotime($on_day, $next_range_time) + $nth * 604800;
                                                                    $month = date('m', $next_date_time);
                                                                    if (in_array($month, $bymonth)) {
                                                                        $recur_data[] = $next_date_time;
                                                                    }
                                                                }
                                                                $next_date = date('Ymd', $next_date_time);
                                                            }
                                                        }
                                                        break;
                                                    case 'YEARLY':
                                                        if (!isset($bymonth) || sizeof($bymonth) == 0) {
                                                            $m = date('m', $start_date_time);
                                                            $bymonth = array("{$m}");
                                                        }
                                                        foreach ($bymonth as $month) {
                                                            // Make sure the month & year used is within the start/end_range.
                                                            if ($month < date('m', $next_range_time)) {
                                                                $year = date('Y', $next_range_time);
                                                            } else {
                                                                $year = date('Y', $next_range_time);
                                                            }
                                                            if (isset($bysetpos)) {
                                                                /* bysetpos code from dustinbutler
                                                                			start on day 1 or last day. 
                                                                			if day matches any BYDAY the count is incremented. 
                                                                			SETPOS = 4, need 4th match 
                                                                			SETPOS = -1, need 1st match 
                                                                			*/
                                                                if ($bysetpos > 0) {
                                                                    $next_day = '+1 day';
                                                                    $day = 1;
                                                                } else {
                                                                    $next_day = '-1 day';
                                                                    $day = date("t", $month);
                                                                }
                                                                $day = mktime(12, 0, 0, $month, $day, $year);
                                                                $countMatch = 0;
                                                                while ($countMatch != abs($bysetpos)) {
                                                                    /* Does this day match a BYDAY value? */
                                                                    $thisDay = $day;
                                                                    $textDay = strtoupper(substr(date('D', $thisDay), 0, 2));
                                                                    if (in_array($textDay, $byday)) {
                                                                        $countMatch++;
                                                                    }
                                                                    $day = strtotime($next_day, $thisDay);
                                                                }
                                                                $recur_data[] = $thisDay;
                                                            }
                                                            if (isset($byday) && is_array($byday)) {
                                                                $checkdate_time = mktime(0, 0, 0, $month, 1, $year);
                                                                foreach ($byday as $day) {
                                                                    ereg('([-\\+]{0,1})?([0-9]{1})?([A-Z]{2})', $day, $byday_arr);
                                                                    if ($byday_arr[2] != '') {
                                                                        $nth = $byday_arr[2] - 1;
                                                                    } else {
                                                                        $nth = 0;
                                                                    }
                                                                    $on_day = two2threeCharDays($byday_arr[3]);
                                                                    $on_day_num = two2threeCharDays($byday_arr[3], false);
                                                                    if ($byday_arr[1] == '-') {
                                                                        $last_day_tmp = date('t', $checkdate_time);
                                                                        $checkdate_time = strtotime(date('Y-m-' . $last_day_tmp, $checkdate_time));
                                                                        $last_tmp = date('w', $checkdate_time) == $on_day_num ? '' : 'last ';
                                                                        $next_date_time = strtotime($last_tmp . $on_day . ' -' . $nth . ' week', $checkdate_time);
                                                                    } else {
                                                                        $next_date_time = strtotime($on_day . ' +' . $nth . ' week', $checkdate_time);
                                                                    }
                                                                }
                                                            } else {
                                                                $day = date('d', $start_date_time);
                                                                $next_date_time = mktime(0, 0, 0, $month, $day, $year);
                                                                //echo date('Ymd',$next_date_time).$summary.'<br>';
                                                            }
                                                            $recur_data[] = $next_date_time;
                                                        }
                                                        if (isset($byyearday)) {
                                                            foreach ($byyearday as $yearday) {
                                                                ereg('([-\\+]{0,1})?([0-9]{1,3})', $yearday, $byyearday_arr);
                                                                if ($byyearday_arr[1] == '-') {
                                                                    $ydtime = mktime(0, 0, 0, 12, 31, $this_year);
                                                                    $yearnum = $byyearday_arr[2] - 1;
                                                                    $next_date_time = strtotime('-' . $yearnum . ' days', $ydtime);
                                                                } else {
                                                                    $ydtime = mktime(0, 0, 0, 1, 1, $this_year);
                                                                    $yearnum = $byyearday_arr[2] - 1;
                                                                    $next_date_time = strtotime('+' . $yearnum . ' days', $ydtime);
                                                                }
                                                                $recur_data[] = $next_date_time;
                                                            }
                                                        }
                                                        break;
                                                    default:
                                                        // anything else we need to end the loop
                                                        $next_range_time = $end_range_time_tmp + 100;
                                                        $count_to = $count;
                                                }
                                            } else {
                                                $interval = 1;
                                            }
                                            $next_range_time = strtotime('+' . $interval . ' ' . $freq_type, $next_range_time);
                                        } else {
                                            // end the loop because we aren't going to write this event anyway
                                            $count_to = $count;
                                        }
                                        // use the same code to write the data instead of always changing it 5 times
                                        if (isset($recur_data) && is_array($recur_data)) {
                                            $recur_data_hour = @substr($start_time, 0, 2);
                                            $recur_data_minute = @substr($start_time, 2, 2);
                                            foreach ($recur_data as $recur_data_time) {
                                                $recur_data_year = date('Y', $recur_data_time);
                                                $recur_data_month = date('m', $recur_data_time);
                                                $recur_data_day = date('d', $recur_data_time);
                                                $recur_data_date = $recur_data_year . $recur_data_month . $recur_data_day;
                                                if ($recur_data_time > $start_date_time && $recur_data_time <= $end_date_time && $count_to != $count && !in_array($recur_data_date, $except_dates)) {
                                                    if (isset($allday_start) && $allday_start != '') {
                                                        $start_time2 = $recur_data_time;
                                                        $end_time2 = strtotime('+' . $diff_allday_days . ' days', $recur_data_time);
                                                        while ($start_time2 < $end_time2) {
                                                            $start_date2 = date('Ymd', $start_time2);
                                                            $master_array[$start_date2]['-1'][$uid] = array('event_text' => $summary, 'description' => $description, 'location' => $location, 'organizer' => serialize($organizer), 'attendee' => serialize($attendee), 'calnumber' => $calnumber, 'calname' => $actual_calname, 'url' => $url, 'status' => $status, 'class' => $class, 'recur' => $recur);
                                                            $start_time2 = strtotime('+1 day', $start_time2);
                                                        }
                                                    } else {
                                                        $start_unixtime_tmp = mktime($recur_data_hour, $recur_data_minute, 0, $recur_data_month, $recur_data_day, $recur_data_year);
                                                        $end_unixtime_tmp = $start_unixtime_tmp + $length;
                                                        if ($end_time >= $bleed_time && $bleed_check == '-1') {
                                                            $start_tmp = strtotime(date('Ymd', $start_unixtime_tmp));
                                                            $end_date_tmp = date('Ymd', $end_unixtime_tmp);
                                                            while ($start_tmp < $end_unixtime_tmp) {
                                                                $start_date_tmp = date('Ymd', $start_tmp);
                                                                if ($start_date_tmp == $recur_data_year . $recur_data_month . $recur_data_day) {
                                                                    $time_tmp = $hour . $minute;
                                                                    $start_time_tmp = $start_time;
                                                                } else {
                                                                    $time_tmp = '0000';
                                                                    $start_time_tmp = '0000';
                                                                }
                                                                if ($start_date_tmp == $end_date_tmp) {
                                                                    $end_time_tmp = $end_time;
                                                                } else {
                                                                    $end_time_tmp = '2400';
                                                                    $display_end_tmp = $end_time;
                                                                }
                                                                // Let's double check the until to not write past it
                                                                $until_check = $start_date_tmp . $time_tmp . '00';
                                                                if ($abs_until > $until_check) {
                                                                    $master_array[$start_date_tmp][$time_tmp][$uid] = array('event_start' => $start_time_tmp, 'event_end' => $end_time_tmp, 'start_unixtime' => $start_unixtime_tmp, 'end_unixtime' => $end_unixtime_tmp, 'event_text' => $summary, 'event_length' => $length, 'event_overlap' => 0, 'description' => $description, 'status' => $status, 'class' => $class, 'spans_day' => true, 'location' => $location, 'organizer' => serialize($organizer), 'attendee' => serialize($attendee), 'calnumber' => $calnumber, 'calname' => $actual_calname, 'url' => $url, 'recur' => $recur);
                                                                    if (isset($display_end_tmp)) {
                                                                        $master_array[$start_date_tmp][$time_tmp][$uid]['display_end'] = $display_end_tmp;
                                                                    }
                                                                    checkOverlap($start_date_tmp, $time_tmp, $uid, $master_array, $overlap_array);
                                                                }
                                                                $start_tmp = strtotime('+1 day', $start_tmp);
                                                            }
                                                        } else {
                                                            if ($bleed_check == '-1') {
                                                                $display_end_tmp = $end_time;
                                                                $end_time_tmp1 = '2400';
                                                            }
                                                            if (!isset($end_time_tmp1)) {
                                                                $end_time_tmp1 = $end_time;
                                                            }
                                                            // Let's double check the until to not write past it
                                                            $until_check = $recur_data_date . $hour . $minute . '00';
                                                            if ($abs_until > $until_check) {
                                                                $master_array[$recur_data_date][$hour . $minute][$uid] = array('event_start' => $start_time, 'event_end' => $end_time_tmp1, 'start_unixtime' => $start_unixtime_tmp, 'end_unixtime' => $end_unixtime_tmp, 'event_text' => $summary, 'event_length' => $length, 'event_overlap' => 0, 'description' => $description, 'status' => $status, 'class' => $class, 'spans_day' => false, 'location' => $location, 'organizer' => serialize($organizer), 'attendee' => serialize($attendee), 'calnumber' => $calnumber, 'calname' => $actual_calname, 'url' => $url, 'recur' => $recur);
                                                                if (isset($display_end_tmp)) {
                                                                    $master_array[$recur_data_date][$hour . $minute][$uid]['display_end'] = $display_end_tmp;
                                                                }
                                                                checkOverlap($recur_data_date, $hour . $minute, $uid, $master_array, $overlap_array);
                                                            }
                                                        }
                                                    }
                                                }
                                            }
                                            unset($recur_data);
                                        }
                                    }
                                }
                        }
                    }
                }
                // This should remove any exdates that were missed.
                // Added for version 0.9.5 modified in 2.22 remove anything that doesn't have an event_start
                if (is_array($except_dates)) {
                    foreach ($except_dates as $key => $value) {
                        if (isset($master_array[$value])) {
                            foreach ($master_array[$value] as $time => $value2) {
                                if (!isset($value2[$uid]['event_start'])) {
                                    unset($master_array[$value][$time][$uid]);
                                }
                            }
                        }
                    }
                }
                // Clear event data now that it's been saved.
                unset($start_time, $start_time_tmp, $end_time, $end_time_tmp, $start_unixtime, $start_unixtime_tmp, $end_unixtime, $end_unixtime_tmp, $summary, $length, $description, $status, $class, $location, $organizer, $attendee);
                break;
            case 'END:VTODO':
                if (!$vtodo_priority && $status == 'COMPLETED') {
                    $vtodo_sort = 11;
                } elseif (!$vtodo_priority) {
                    $vtodo_sort = 10;
                } else {
                    $vtodo_sort = $vtodo_priority;
                }
                // CLASS support
                if (isset($class)) {
                    if ($class == 'PRIVATE') {
                        $summary = '**PRIVATE**';
                        $description = '**PRIVATE**';
                    } elseif ($class == 'CONFIDENTIAL') {
                        $summary = '**CONFIDENTIAL**';
                        $description = '**CONFIDENTIAL**';
                    }
                }
                $master_array['-2']["{$vtodo_sort}"]["{$uid}"] = array('start_date' => $start_date, 'start_time' => $start_time, 'vtodo_text' => $summary, 'due_date' => $due_date, 'due_time' => $due_time, 'completed_date' => $completed_date, 'completed_time' => $completed_time, 'priority' => $vtodo_priority, 'status' => $status, 'class' => $class, 'categories' => $vtodo_categories, 'description' => $description, 'calname' => $actual_calname);
                unset($start_date, $start_time, $due_date, $due_time, $completed_date, $completed_time, $vtodo_priority, $status, $class, $vtodo_categories, $summary, $description);
                $vtodo_set = FALSE;
                break;
            case 'BEGIN:VTODO':
                $vtodo_set = TRUE;
                break;
            case 'BEGIN:VALARM':
                $valarm_set = TRUE;
                break;
            case 'END:VALARM':
                $valarm_set = FALSE;
                break;
            default:
                unset($field, $data, $prop_pos, $property);
                if (ereg("([^:]+):(.*)", $line, $line)) {
                    $field = $line[1];
                    $data = $line[2];
                    $property = $field;
                    $prop_pos = strpos($property, ';');
                    if ($prop_pos !== false) {
                        $property = substr($property, 0, $prop_pos);
                    }
                    $property = strtoupper($property);
                    switch ($property) {
                        // Start VTODO Parsing
                        //
                        case 'DUE':
                            $datetime = extractDateTime($data, $property, $field, $tz_array);
                            $due_date = $datetime[1];
                            $due_time = $datetime[2];
                            break;
                        case 'COMPLETED':
                            $datetime = extractDateTime($data, $property, $field, $tz_array);
                            $completed_date = $datetime[1];
                            $completed_time = $datetime[2];
                            break;
                        case 'PRIORITY':
                            $vtodo_priority = "{$data}";
                            break;
                        case 'STATUS':
                            $status = "{$data}";
                            break;
                        case 'CLASS':
                            $class = "{$data}";
                            break;
                        case 'CATEGORIES':
                            $vtodo_categories = "{$data}";
                            break;
                            //
                            // End VTODO Parsing
                        //
                        // End VTODO Parsing
                        case 'DTSTART':
                            $datetime = extractDateTime($data, $property, $field, $tz_array);
                            $start_unixtime = $datetime[0];
                            $start_date = $datetime[1];
                            $start_time = $datetime[2];
                            $allday_start = $datetime[3];
                            break;
                        case 'DTEND':
                            $datetime = extractDateTime($data, $property, $field, $tz_array);
                            $end_unixtime = $datetime[0];
                            $end_date = $datetime[1];
                            $end_time = $datetime[2];
                            $allday_end = $datetime[3];
                            break;
                        case 'EXDATE':
                            $data = split(",", $data);
                            foreach ($data as $exdata) {
                                $exdata = str_replace('T', '', $exdata);
                                $exdata = str_replace('Z', '', $exdata);
                                preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})/', $exdata, $regs);
                                $except_dates[] = $regs[1] . $regs[2] . $regs[3];
                                // Added for Evolution, since they dont think they need to tell me which time to exclude.
                                if ($regs[4] == '' && $start_time != '') {
                                    $except_times[] = $start_time;
                                } else {
                                    $except_times[] = $regs[4] . $regs[5];
                                }
                            }
                            break;
                        case 'SUMMARY':
                            $data = str_replace("\\n", "<br />", $data);
                            $data = str_replace("\\t", "&nbsp;", $data);
                            $data = str_replace("\\r", "<br />", $data);
                            $data = str_replace('$', '&#36;', $data);
                            $data = stripslashes($data);
                            // 						$data = htmlentities(urlencode($data));
                            $data = htmlentities($data);
                            if ($valarm_set == FALSE) {
                                $summary = $data;
                            } else {
                                $valarm_summary = $data;
                            }
                            break;
                        case 'DESCRIPTION':
                            $data = str_replace("\\n", "<br />", $data);
                            $data = str_replace("\\t", "&nbsp;", $data);
                            $data = str_replace("\\r", "<br />", $data);
                            $data = str_replace('$', '&#36;', $data);
                            $data = stripslashes($data);
                            $data = htmlentities(urlencode($data));
                            if ($valarm_set == FALSE) {
                                $description = $data;
                            } else {
                                $valarm_description = $data;
                            }
                            break;
                        case 'RECURRENCE-ID':
                            $parts = explode(';', $field);
                            foreach ($parts as $part) {
                                $eachval = split('=', $part);
                                if ($eachval[0] == 'RECURRENCE-ID') {
                                    // do nothing
                                } elseif ($eachval[0] == 'TZID') {
                                    $recurrence_id['tzid'] = parse_tz($eachval[1]);
                                } elseif ($eachval[0] == 'RANGE') {
                                    $recurrence_id['range'] = $eachval[1];
                                } elseif ($eachval[0] == 'VALUE') {
                                    $recurrence_id['value'] = $eachval[1];
                                } else {
                                    $recurrence_id[] = $eachval[1];
                                }
                            }
                            unset($parts, $part, $eachval);
                            $data = str_replace('T', '', $data);
                            $data = str_replace('Z', '', $data);
                            ereg('([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})', $data, $regs);
                            $recurrence_id['date'] = $regs[1] . $regs[2] . $regs[3];
                            $recurrence_id['time'] = $regs[4] . $regs[5];
                            $recur_unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);
                            $dlst = date('I', $recur_unixtime);
                            $server_offset_tmp = chooseOffset($recur_unixtime, &$timezone, &$tz_array);
                            if (isset($recurrence_id['tzid'])) {
                                $tz_tmp = $recurrence_id['tzid'];
                                $offset_tmp = $tz_array[$tz_tmp][$dlst];
                            } elseif (isset($calendar_tz)) {
                                $offset_tmp = $tz_array[$calendar_tz][$dlst];
                            } else {
                                $offset_tmp = $server_offset_tmp;
                            }
                            $recur_unixtime = calcTime($offset_tmp, $server_offset_tmp, $recur_unixtime);
                            $recurrence_id['date'] = date('Ymd', $recur_unixtime);
                            $recurrence_id['time'] = date('Hi', $recur_unixtime);
                            $recurrence_d = date('Ymd', $recur_unixtime);
                            $recurrence_t = date('Hi', $recur_unixtime);
                            unset($server_offset_tmp);
                            break;
                        case 'UID':
                            $uid = $data;
                            break;
                        case 'X-WR-CALNAME':
                            $actual_calname = $data;
                            $master_array['calendar_name'] = $actual_calname;
                            $cal_displaynames[$cal_key] = $actual_calname;
                            #correct the default calname based on filename
                            break;
                        case 'X-WR-TIMEZONE':
                            $calendar_tz = parse_tz($data);
                            $master_array['calendar_tz'] = $calendar_tz;
                            break;
                        case 'DURATION':
                            if ($first_duration == TRUE && !stristr($field, '=DURATION')) {
                                ereg('^P([0-9]{1,2}[W])?([0-9]{1,2}[D])?([T]{0,1})?([0-9]{1,2}[H])?([0-9]{1,2}[M])?([0-9]{1,2}[S])?', $data, $duration);
                                $weeks = str_replace('W', '', $duration[1]);
                                $days = str_replace('D', '', $duration[2]);
                                $hours = str_replace('H', '', $duration[4]);
                                $minutes = str_replace('M', '', $duration[5]);
                                $seconds = str_replace('S', '', $duration[6]);
                                $the_duration = $weeks * 60 * 60 * 24 * 7 + $days * 60 * 60 * 24 + $hours * 60 * 60 + $minutes * 60 + $seconds;
                                $first_duration = FALSE;
                            }
                            break;
                        case 'RRULE':
                            $data = str_replace('RRULE:', '', $data);
                            $rrule = split(';', $data);
                            foreach ($rrule as $recur) {
                                ereg('(.*)=(.*)', $recur, $regs);
                                $rrule_array[$regs[1]] = $regs[2];
                            }
                            break;
                        case 'ATTENDEE':
                            $field = str_replace("ATTENDEE;CN=", "", $field);
                            $data = str_replace("mailto:", "", $data);
                            $attendee[] = array('name' => stripslashes($field), 'email' => stripslashes($data));
                            break;
                        case 'ORGANIZER':
                            $field = str_replace("ORGANIZER;CN=", "", $field);
                            $data = str_replace("mailto:", "", $data);
                            $organizer[] = array('name' => stripslashes($field), 'email' => stripslashes($data));
                            break;
                        case 'LOCATION':
                            $data = str_replace("\\n", "<br />", $data);
                            $data = str_replace("\\t", "&nbsp;", $data);
                            $data = str_replace("\\r", "<br />", $data);
                            $data = stripslashes($data);
                            $location = $data;
                            break;
                        case 'URL':
                            $url = $data;
                            break;
                    }
                }
        }
    }
    unset($master_array['calendar_name']);
    unset($master_array['-1']);
    unset($master_array['-3']);
    unset($master_array['-4']);
    // print_R($master_array);
    // print_R($overlap_array);
    return $master_array;
}