PHP is_dst函数代码示例

}
# ensure that $morningstarts_minutes defaults to zero if not set
if (empty($morningstarts_minutes)) {
    $morningstarts_minutes = 0;
}
# Define the start and end of each day of the week in a way which is not
# affected by daylight saving...
for ($j = 0; $j <= $num_of_days - 1; $j++) {
    # are we entering or leaving daylight saving
    # dst_change:
    # -1 => no change
    #  0 => entering DST
    #  1 => leaving DST
    $dst_change[$j] = is_dst($month, $day + $j, $year);
    $am7[$j] = mktime($morningstarts, $morningstarts_minutes, 0, $month, $day + $j, $year, is_dst($month, $day + $j, $year, $morningstarts));
    $pm7[$j] = mktime($eveningends, $eveningends_minutes, 0, $month, $day + $j, $year, is_dst($month, $day + $j, $year, $eveningends));
}
if ($pview != 1) {
    # Table with areas, rooms, minicals.
    echo "<table width=\"100%\"><tr>";
    $this_area_name = "";
    $this_room_name = "";
    # Show all areas
    echo "<td width=\"30%\"><u>" . get_vocab("areas") . "</u><br>";
}
# show either a select box or the normal html list
if ($area_list_format == "select") {
    echo make_area_select_html('week.php', $area, $year, $month, $day);
    # from functions.inc
    $this_area_name = sql_query1("select area_name from {$tbl_area} where id={$area}");
    $this_room_name = sql_query1("select room_name from {$tbl_room} where id={$room}");

}
# Define the start and end of each day of the month in a way which is not
# affected by daylight saving...
for ($j = 1; $j <= $days_in_month; $j++) {
    # are we entering or leaving daylight saving
    # dst_change:
    # -1 => no change
    #  0 => entering DST
    #  1 => leaving DST
    $dst_change[$j] = is_dst($month, $j, $year);
    if (empty($enable_periods)) {
        $midnight[$j] = mktime(0, 0, 0, $month, $j, $year, is_dst($month, $j, $year, 0));
        $midnight_tonight[$j] = mktime(23, 59, 59, $month, $j, $year, is_dst($month, $j, $year, 23));
    } else {
        $midnight[$j] = mktime(12, 0, 0, $month, $j, $year, is_dst($month, $j, $year, 0));
        $midnight_tonight[$j] = mktime(12, count($periods), 59, $month, $j, $year, is_dst($month, $j, $year, 23));
    }
}
if ($pview != 1) {
    # Table with areas, rooms, minicals.
    echo "<table width=\"100%\"><tr>";
    $this_area_name = "";
    $this_room_name = "";
    # Show all areas
    echo "<td width=\"30%\"><u>" . get_string('areas', 'block_mrbs') . "</u><br>";
}
# show either a select box or the normal html list
if ($area_list_format == "select") {
    echo make_area_select_html('month.php', $area, $year, $month, $day);
    # from functions.php
    $this_area_name = sql_query1("select area_name from {$tbl_area} where id={$area}");

        $starttime = mktime($morningstarts, 0, 0, $month, $day, $year, is_dst($month, $day, $year));
        $end_minutes = $eveningends_minutes + $morningstarts_minutes;
        $eveningends_minutes > 59 ? $end_minutes += 60 : '';
        $endtime = mktime($eveningends, $end_minutes, 0, $month, $day, $year, is_dst($month, $day, $year));
    }
} else {
    if (!$twentyfourhour_format) {
        if (isset($ampm) && $ampm == "pm" && $hour < 12) {
            $hour += 12;
        }
        if (isset($ampm) && $ampm == "am" && $hour > 11) {
            $hour -= 12;
        }
    }
    $starttime = mktime($hour, $minute, 0, $month, $day, $year, is_dst($month, $day, $year, $hour));
    $endtime = mktime($hour, $minute, 0, $month, $day, $year, is_dst($month, $day, $year, $hour)) + $units * $duration;
    # Round up the duration to the next whole resolution unit.
    # If they asked for 0 minutes, push that up to 1 resolution unit.
    $diff = $endtime - $starttime;
    if (($tmp = $diff % $resolution) != 0 || $diff == 0) {
        $endtime += $resolution - $tmp;
    }
    $endtime += cross_dst($starttime, $endtime);
}
if (isset($rep_type) && $rep_type > 0 && isset($rep_end_month) && isset($rep_end_day) && isset($rep_end_year)) {
    // Get the repeat entry settings
    $rep_enddate = mktime($hour, $minute, 0, $rep_end_month, $rep_end_day, $rep_end_year);
} else {
    $rep_type = 0;
}
if (!isset($rep_day)) {

        // We want the end of the last slot, not the beginning
    }
}
// Now work out the start and times
$starttime = mktime(0, 0, 0, $month, $day, $year, is_dst($month, $day, $year, intval($start_seconds / 3600))) + $start_seconds;
$endtime = mktime(0, 0, 0, $end_month, $end_day, $end_year, is_dst($end_month, $end_day, $end_year, intval($end_seconds / 3600))) + $end_seconds;
// If we're using periods then the endtime we've been returned by the form is actually
// the beginning of the last period in the booking (it's more intuitive for users this way)
// so we need to add on 60 seconds (1 period)
if ($enable_periods) {
    $endtime = $endtime + 60;
}
// Round down the starttime and round up the endtime to the nearest slot boundaries
// (This step is probably unnecesary now that MRBS always returns times aligned
// on slot boundaries, but is left in for good measure).
$am7 = mktime($morningstarts, $morningstarts_minutes, 0, $month, $day, $year, is_dst($month, $day, $year, $morningstarts));
$starttime = round_t_down($starttime, $resolution, $am7);
$endtime = round_t_up($endtime, $resolution, $am7);
// If they asked for 0 minutes, and even after the rounding the slot length is still
// 0 minutes, push that up to 1 resolution unit.
if ($endtime == $starttime) {
    $endtime += $resolution;
}
// Now get the duration, which will be needed for email notifications
// (We do this before we adjust for DST so that the user sees what they expect to see)
$duration = $endtime - $starttime;
$date = getdate($starttime);
if ($enable_periods) {
    $period = ($date['hours'] - 12) * 60 + $date['minutes'];
    toPeriodString($period, $duration, $dur_units, FALSE);
} else {

if ($enable_periods) {
    $resolution = 60;
    $morningstarts = 12;
    $morningstarts_minutes = 0;
    $eveningends = 12;
    $eveningends_minutes = count($periods) - 1;
}
// Define the start and end of each day of the month in a way which is not
// affected by daylight saving...
for ($j = 1; $j <= $days_in_month; $j++) {
    // are we entering or leaving daylight saving
    // dst_change:
    // -1 => no change
    //  0 => entering DST
    //  1 => leaving DST
    $dst_change[$j] = is_dst($month, $j, $year);
    $am7[$j] = get_start_first_slot($month, $j, $year);
    $pm7[$j] = get_start_last_slot($month, $j, $year);
}
// Section with areas, rooms, minicals.
echo "<div id=\"dwm_header\" class=\"screenonly\">\n";
// Get the area and room names (we will need them later for the heading)
$this_area_name = sql_query1("SELECT area_name FROM {$tbl_area} WHERE id={$area} AND disabled=0 LIMIT 1");
$this_room_name = sql_query1("SELECT room_name FROM {$tbl_room} WHERE id={$room} AND disabled=0 LIMIT 1");
// The room is invalid if it doesn't exist, or else it has been disabled, either explicitly
// or implicitly because the area has been disabled
$room_invalid = $this_area_name === -1 || $this_room_name === -1;
// Show all available areas
echo make_area_select_html('month.php', $area, $year, $month, $day);
// Show all available rooms in the current area:
echo make_room_select_html('month.php', $area, $room, $year, $month, $day);

$month_start = mktime(0, 0, 0, $month, 1, $year);
# What column the month starts in: 0 means $weekstarts weekday.
$weekday_start = (date("w", $month_start) - $weekstarts + 7) % 7;
$days_in_month = date("t", $month_start);
$month_end = mktime(23, 59, 59, $month, $days_in_month, $year);
# Define the start and end of each day of the month in a way which is not
# affected by daylight saving...
for ($j = 1; $j <= $days_in_month; $j++) {
    # are we entering or leaving daylight saving
    # dst_change:
    # -1 => no change
    #  0 => entering DST
    #  1 => leaving DST
    $dst_change[$j] = is_dst($month, $j, $year);
    $midnight[$j] = mktime(0, 0, 0, $month, $j, $year, is_dst($month, $j, $year, 0));
    $midnight_tonight[$j] = mktime(23, 59, 59, $month, $j, $year, is_dst($month, $j, $year, 23));
}
if ($pview != 1) {
    # Table with areas, rooms, minicals.
    echo "<table width=\"100%\"><tr>";
    $this_area_name = "";
    $this_room_name = "";
    # Show all areas
    echo "<td width=\"30%\"><u>" . get_vocab("areas") . "</u><br>";
}
# show either a select box or the normal html list
if ($area_list_format == "select") {
    echo make_area_select_html('month.php', $area, $year, $month, $day);
    # from functions.inc
    $this_area_name = sql_query1("select area_name from mrbs_area where id={$area}");
    $this_room_name = sql_query1("select room_name from mrbs_room where id={$room}");

//.........这里部分代码省略.........
                        $booking[$key] = $value;
                    }
                }
                break;
            case 'CLASS':
                if (in_array($details['value'], array('PRIVATE', 'CONFIDENTIAL'))) {
                    $booking['status'] |= STATUS_PRIVATE;
                }
                break;
            case 'STATUS':
                if ($details['value'] == 'TENTATIVE') {
                    $booking['status'] |= STATUS_TENTATIVE;
                }
                break;
            case 'UID':
                $booking['ical_uid'] = $details['value'];
                break;
            case 'SEQUENCE':
                $booking['ical_sequence'] = $details['value'];
                break;
            case 'LAST-MODIFIED':
                // We probably ought to do something with LAST-MODIFIED and use it
                // for the timestamp field
                break;
            default:
                break;
        }
    }
    // If we didn't manage to work out a username then just put the booking
    // under the name of the current user
    if (!isset($booking['create_by'])) {
        $booking['create_by'] = getUserName();
    }
    // A SUMMARY is optional in RFC 5545, however a brief description is mandatory
    // in MRBS.   So if the VEVENT didn't include a name, we'll give it one
    if (!isset($booking['name'])) {
        $booking['name'] = "Imported event - no SUMMARY name";
    }
    // On the other hand a UID is mandatory in RFC 5545.   We'll be lenient and
    // provide one if it is missing
    if (!isset($booking['ical_uid'])) {
        $booking['ical_uid'] = generate_global_uid($booking['name']);
        $booking['sequence'] = 0;
        // and we'll start the sequence from 0
    }
    // LOCATION is optional in RFC 5545 but is obviously mandatory in MRBS.
    // We could maybe have a default room on the form and use that
    if (!isset($booking['room_id'])) {
        $problems[] = get_vocab("no_LOCATION");
    }
    if (empty($problems)) {
        // Get the area settings for this room, if we haven't got them already
        if (!isset($room_settings[$booking['room_id']])) {
            get_area_settings(get_area($booking['room_id']));
            $room_settings[$booking['room_id']]['morningstarts'] = $morningstarts;
            $room_settings[$booking['room_id']]['morningstarts_minutes'] = $morningstarts_minutes;
            $room_settings[$booking['room_id']]['resolution'] = $resolution;
        }
        // Round the start and end times to slot boundaries
        $date = getdate($booking['start_time']);
        $m = $date['mon'];
        $d = $date['mday'];
        $y = $date['year'];
        $am7 = mktime($room_settings[$booking['room_id']]['morningstarts'], $room_settings[$booking['room_id']]['morningstarts_minutes'], 0, $m, $d, $y, is_dst($m, $d, $y, $room_settings[$booking['room_id']]['morningstarts']));
        $booking['start_time'] = round_t_down($booking['start_time'], $room_settings[$booking['room_id']]['resolution'], $am7);
        $booking['end_time'] = round_t_up($booking['end_time'], $room_settings[$booking['room_id']]['resolution'], $am7);
        // Make the bookings
        $bookings = array($booking);
        $result = mrbsMakeBookings($bookings, NULL, FALSE, $skip);
        if ($result['valid_booking']) {
            return TRUE;
        }
    }
    // There were problems - list them
    echo "<div class=\"problem_report\">\n";
    echo get_vocab("could_not_import") . " UID:" . htmlspecialchars($booking['ical_uid']);
    echo "<ul>\n";
    foreach ($problems as $problem) {
        echo "<li>" . htmlspecialchars($problem) . "</li>\n";
    }
    if (!empty($result['rules_broken'])) {
        echo "<li>" . get_vocab("rules_broken") . "\n";
        echo "<ul>\n";
        foreach ($result['rules_broken'] as $rule) {
            echo "<li>{$rule}</li>\n";
        }
        echo "</ul></li>\n";
    }
    if (!empty($result['conflicts'])) {
        echo "<li>" . get_vocab("conflict") . "\n";
        echo "<ul>\n";
        foreach ($result['conflicts'] as $conflict) {
            echo "<li>{$conflict}</li>\n";
        }
        echo "</ul></li>\n";
    }
    echo "</ul>\n";
    echo "</div>\n";
    return FALSE;
}