public function date($message, $viewmail = false) {
$tz = core_date::get_user_timezone();
$date = new DateTime('now', new DateTimeZone($tz));
$offset = ($date->getOffset() - dst_offset_on(time(), $tz)) / (3600.0);
$time = ($offset < 13) ? $message->time() + $offset : $message->time();
$now = ($offset < 13) ? time() + $offset : time();
$daysago = floor($now / 86400) - floor($time / 86400);
$yearsago = (int) date('Y', $now) - (int) date('Y', $time);
$tooltip = userdate($time, get_string('strftimedatetime'));
if ($viewmail) {
$content = userdate($time, get_string('strftimedatetime'));
$tooltip = '';
} else if ($daysago == 0) {
$content = userdate($time, get_string('strftimetime'));
} else if ($yearsago == 0) {
$content = userdate($time, get_string('strftimedateshort'));
} else {
$content = userdate($time, get_string('strftimedate'));
}
return html_writer::tag('span', s($content), array('class' => 'mail_date', 'title' => $tooltip));
}
function calendar_get_mini($courses, $groups, $users, $cal_month = false, $cal_year = false)
{
global $CFG, $USER;
$display = new stdClass();
$display->minwday = get_user_preferences('calendar_startwday', CALENDAR_STARTING_WEEKDAY);
$display->maxwday = $display->minwday + 6;
$content = '';
if (!empty($cal_month) && !empty($cal_year)) {
$thisdate = usergetdate(time());
// Date and time the user sees at his location
if ($cal_month == $thisdate['mon'] && $cal_year == $thisdate['year']) {
// Navigated to this month
$date = $thisdate;
$display->thismonth = true;
} else {
// Navigated to other month, let's do a nice trick and save us a lot of work...
if (!checkdate($cal_month, 1, $cal_year)) {
$date = array('mday' => 1, 'mon' => $thisdate['mon'], 'year' => $thisdate['year']);
$display->thismonth = true;
} else {
$date = array('mday' => 1, 'mon' => $cal_month, 'year' => $cal_year);
$display->thismonth = false;
}
}
} else {
$date = usergetdate(time());
// Date and time the user sees at his location
$display->thismonth = true;
}
// Fill in the variables we 're going to use, nice and tidy
list($d, $m, $y) = array($date['mday'], $date['mon'], $date['year']);
// This is what we want to display
$display->maxdays = calendar_days_in_month($m, $y);
if (get_user_timezone_offset() < 99) {
// We 'll keep these values as GMT here, and offset them when the time comes to query the db
$display->tstart = gmmktime(0, 0, 0, $m, 1, $y);
// This is GMT
$display->tend = gmmktime(23, 59, 59, $m, $display->maxdays, $y);
// GMT
} else {
// no timezone info specified
$display->tstart = mktime(0, 0, 0, $m, 1, $y);
$display->tend = mktime(23, 59, 59, $m, $display->maxdays, $y);
}
$startwday = dayofweek(1, $m, $y);
// Align the starting weekday to fall in our display range
// This is simple, not foolproof.
if ($startwday < $display->minwday) {
$startwday += 7;
}
// TODO: THIS IS TEMPORARY CODE!
// [pj] I was just reading through this and realized that I when writing this code I was probably
// asking for trouble, as all these time manipulations seem to be unnecessary and a simple
// make_timestamp would accomplish the same thing. So here goes a test:
//$test_start = make_timestamp($y, $m, 1);
//$test_end = make_timestamp($y, $m, $display->maxdays, 23, 59, 59);
//if($test_start != usertime($display->tstart) - dst_offset_on($display->tstart)) {
//notify('Failed assertion in calendar/lib.php line 126; display->tstart = '.$display->tstart.', dst_offset = '.dst_offset_on($display->tstart).', usertime = '.usertime($display->tstart).', make_t = '.$test_start);
//}
//if($test_end != usertime($display->tend) - dst_offset_on($display->tend)) {
//notify('Failed assertion in calendar/lib.php line 130; display->tend = '.$display->tend.', dst_offset = '.dst_offset_on($display->tend).', usertime = '.usertime($display->tend).', make_t = '.$test_end);
//}
// Get the events matching our criteria. Don't forget to offset the timestamps for the user's TZ!
$events = calendar_get_events(usertime($display->tstart) - dst_offset_on($display->tstart), usertime($display->tend) - dst_offset_on($display->tend), $users, $groups, $courses);
// Set event course class for course events
if (!empty($events)) {
foreach ($events as $eventid => $event) {
if (!empty($event->modulename)) {
$cm = get_coursemodule_from_instance($event->modulename, $event->instance);
if (!groups_course_module_visible($cm)) {
unset($events[$eventid]);
}
}
}
}
// This is either a genius idea or an idiot idea: in order to not complicate things, we use this rule: if, after
// possibly removing SITEID from $courses, there is only one course left, then clicking on a day in the month
// will also set the $SESSION->cal_courses_shown variable to that one course. Otherwise, we 'd need to add extra
// arguments to this function.
$morehref = '';
if (!empty($courses)) {
$courses = array_diff($courses, array(SITEID));
if (count($courses) == 1) {
$morehref = '&course=' . reset($courses);
}
}
// We want to have easy access by day, since the display is on a per-day basis.
// Arguments passed by reference.
//calendar_events_by_day($events, $display->tstart, $eventsbyday, $durationbyday, $typesbyday);
calendar_events_by_day($events, $m, $y, $eventsbyday, $durationbyday, $typesbyday, $courses);
//Accessibility: added summary and <abbr> elements.
///global $CALENDARDAYS; appears to be broken.
$days_title = array('sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday');
$summary = get_string('calendarheading', 'calendar', userdate(make_timestamp($y, $m), get_string('strftimemonthyear')));
$summary = get_string('tabledata', 'access', $summary);
$content .= '<table class="minicalendar" summary="' . $summary . '">';
// Begin table
$content .= '<tr class="weekdays">';
// Header row: day names
// Print out the names of the weekdays
$days = array('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat');
for ($i = $display->minwday; $i <= $display->maxwday; ++$i) {
// This uses the % operator to get the correct weekday no matter what shift we have
// applied to the $display->minwday : $display->maxwday range from the default 0 : 6
$content .= '<th scope="col"><abbr title="' . get_string($days_title[$i % 7], 'calendar') . '">' . get_string($days[$i % 7], 'calendar') . "</abbr></th>\n";
}
$content .= '</tr><tr>';
// End of day names; prepare for day numbers
// For the table display. $week is the row; $dayweek is the column.
$dayweek = $startwday;
// Paddding (the first week may have blank days in the beginning)
for ($i = $display->minwday; $i < $startwday; ++$i) {
$content .= '<td class="dayblank"> </td>' . "\n";
}
// Now display all the calendar
for ($day = 1; $day <= $display->maxdays; ++$day, ++$dayweek) {
if ($dayweek > $display->maxwday) {
// We need to change week (table row)
$content .= '</tr><tr>';
$dayweek = $display->minwday;
}
// Reset vars
$cell = '';
if (CALENDAR_WEEKEND & 1 << $dayweek % 7) {
// Weekend. This is true no matter what the exact range is.
$class = 'weekend day';
} else {
// Normal working day.
$class = 'day';
}
// Special visual fx if an event is defined
if (isset($eventsbyday[$day])) {
$dayhref = calendar_get_link_href(CALENDAR_URL . 'view.php?view=day' . $morehref . '&', $day, $m, $y);
// OverLib popup
$popupcontent = '';
foreach ($eventsbyday[$day] as $eventid) {
if (!isset($events[$eventid])) {
continue;
}
$event = $events[$eventid];
if (!empty($event->modulename)) {
$popupicon = $CFG->modpixpath . '/' . $event->modulename . '/icon.gif';
$popupalt = $event->modulename;
} else {
if ($event->courseid == SITEID) {
// Site event
$popupicon = $CFG->pixpath . '/c/site.gif';
$popupalt = '';
} else {
if ($event->courseid != 0 && $event->courseid != SITEID && $event->groupid == 0) {
// Course event
$popupicon = $CFG->pixpath . '/c/course.gif';
$popupalt = '';
} else {
if ($event->groupid) {
// Group event
$popupicon = $CFG->pixpath . '/c/group.gif';
$popupalt = '';
} else {
if ($event->userid) {
// User event
$popupicon = $CFG->pixpath . '/c/user.gif';
$popupalt = '';
}
}
}
}
}
$popupcontent .= '<div><img class="icon" src="' . $popupicon . '" alt="' . $popupalt . '" /><a href="' . $dayhref . '#event_' . $event->id . '">' . format_string($event->name, true) . '</a></div>';
}
//Accessibility: functionality moved to calendar_get_popup.
if ($display->thismonth && $day == $d) {
$popup = calendar_get_popup(true, $events[$eventid]->timestart, $popupcontent);
} else {
$popup = calendar_get_popup(false, $events[$eventid]->timestart, $popupcontent);
}
// Class and cell content
if (isset($typesbyday[$day]['startglobal'])) {
$class .= ' event_global';
} else {
if (isset($typesbyday[$day]['startcourse'])) {
$class .= ' event_course';
} else {
if (isset($typesbyday[$day]['startgroup'])) {
$class .= ' event_group';
} else {
if (isset($typesbyday[$day]['startuser'])) {
$class .= ' event_user';
}
}
}
}
$cell = '<a href="' . $dayhref . '" ' . $popup . '>' . $day . '</a>';
} else {
$cell = $day;
}
if (isset($typesbyday[$day]['durationglobal'])) {
$class .= ' duration_global';
} else {
if (isset($typesbyday[$day]['durationcourse'])) {
$class .= ' duration_course';
} else {
if (isset($typesbyday[$day]['durationgroup'])) {
$class .= ' duration_group';
} else {
if (isset($typesbyday[$day]['durationuser'])) {
$class .= ' duration_user';
}
}
}
}
// If event has a class set then add it to the table day <td> tag
// Note: only one colour for minicalendar
if (isset($eventsbyday[$day])) {
foreach ($eventsbyday[$day] as $eventid) {
if (!isset($events[$eventid])) {
continue;
}
$event = $events[$eventid];
if (!empty($event->class)) {
$class .= ' ' . $event->class;
}
break;
}
}
// Special visual fx for today
//Accessibility: hidden text for today, and popup.
if ($display->thismonth && $day == $d) {
$class .= ' today';
$today = get_string('today', 'calendar') . ' ' . userdate(time(), get_string('strftimedayshort'));
if (!isset($eventsbyday[$day])) {
$class .= ' eventnone';
$popup = calendar_get_popup(true, false);
$cell = '<a href="#" ' . $popup . '>' . $day . '</a>';
}
$cell = get_accesshide($today . ' ') . $cell;
}
// Just display it
if (!empty($class)) {
$class = ' class="' . $class . '"';
}
$content .= '<td' . $class . '>' . $cell . "</td>\n";
}
// Paddding (the last week may have blank days at the end)
for ($i = $dayweek; $i <= $display->maxwday; ++$i) {
$content .= '<td class="dayblank"> </td>';
}
$content .= '</tr>';
// Last row ends
$content .= '</table>';
// Tabular display of days ends
return $content;
}
/**
* Function to convert time in user's timezone to GMT
* Note: Moodle function usertime() doesn't include DST offset
* @param int $usertime timestamp in user's timezone
* @param float|int|string $timezone optional timezone to use, defaults to user's
* @return int timestamp in GMT
*/
function pm_gmt_from_usertime($usertime, $timezone = 99)
{
$tz = get_user_timezone_offset($timezone);
if (abs($tz) > 13) {
return $usertime;
}
$usertime -= (int) ($tz * HOURSECS);
if ($timezone == 99 || !is_numeric($timezone)) {
$usertime -= dst_offset_on($usertime, $timezone);
}
return $usertime;
}
/**
* Update or create an event within the database
*
* Pass in a object containing the event properties and this function will
* insert it into the database and deal with any associated files
*
* @see add_event()
* @see update_event()
*
* @param stdClass $data object of event
* @param bool $checkcapability if moodle should check calendar managing capability or not
* @return bool event updated
*/
public function update($data, $checkcapability = true)
{
global $CFG, $DB, $USER;
foreach ($data as $key => $value) {
$this->properties->{$key} = $value;
}
$this->properties->timemodified = time();
$usingeditor = !empty($this->properties->description) && is_array($this->properties->description);
if (empty($this->properties->id) || $this->properties->id < 1) {
if ($checkcapability) {
if (!calendar_add_event_allowed($this->properties)) {
print_error('nopermissiontoupdatecalendar');
}
}
if ($usingeditor) {
switch ($this->properties->eventtype) {
case 'user':
$this->properties->courseid = 0;
$this->properties->course = 0;
$this->properties->groupid = 0;
$this->properties->userid = $USER->id;
break;
case 'site':
$this->properties->courseid = SITEID;
$this->properties->course = SITEID;
$this->properties->groupid = 0;
$this->properties->userid = $USER->id;
break;
case 'course':
$this->properties->groupid = 0;
$this->properties->userid = $USER->id;
break;
case 'group':
$this->properties->userid = $USER->id;
break;
default:
// Ewww we should NEVER get here, but just incase we do lets
// fail gracefully
$usingeditor = false;
break;
}
// If we are actually using the editor, we recalculate the context because some default values
// were set when calculate_context() was called from the constructor.
if ($usingeditor) {
$this->properties->context = $this->calculate_context($this->properties);
$this->editorcontext = $this->properties->context;
}
$editor = $this->properties->description;
$this->properties->format = $this->properties->description['format'];
$this->properties->description = $this->properties->description['text'];
}
// Insert the event into the database
$this->properties->id = $DB->insert_record('event', $this->properties);
if ($usingeditor) {
$this->properties->description = file_save_draft_area_files($editor['itemid'], $this->editorcontext->id, 'calendar', 'event_description', $this->properties->id, $this->editoroptions, $editor['text'], $this->editoroptions['forcehttps']);
$DB->set_field('event', 'description', $this->properties->description, array('id' => $this->properties->id));
}
// Log the event entry.
add_to_log($this->properties->courseid, 'calendar', 'add', 'event.php?action=edit&id=' . $this->properties->id, $this->properties->name);
$repeatedids = array();
if (!empty($this->properties->repeat)) {
$this->properties->repeatid = $this->properties->id;
$DB->set_field('event', 'repeatid', $this->properties->repeatid, array('id' => $this->properties->id));
$eventcopy = clone $this->properties;
unset($eventcopy->id);
for ($i = 1; $i < $eventcopy->repeats; $i++) {
$eventcopy->timestart = $eventcopy->timestart + WEEKSECS + dst_offset_on($eventcopy->timestart) - dst_offset_on($eventcopy->timestart + WEEKSECS);
// Get the event id for the log record.
$eventcopyid = $DB->insert_record('event', $eventcopy);
// If the context has been set delete all associated files
if ($usingeditor) {
$fs = get_file_storage();
$files = $fs->get_area_files($this->editorcontext->id, 'calendar', 'event_description', $this->properties->id);
foreach ($files as $file) {
$fs->create_file_from_storedfile(array('itemid' => $eventcopyid), $file);
}
}
$repeatedids[] = $eventcopyid;
// Log the event entry.
add_to_log($eventcopy->courseid, 'calendar', 'add', 'event.php?action=edit&id=' . $eventcopyid, $eventcopy->name);
}
}
// Hook for tracking added events
self::calendar_event_hook('add_event', array($this->properties, $repeatedids));
return true;
} else {
if ($checkcapability) {
if (!calendar_edit_event_allowed($this->properties)) {
print_error('nopermissiontoupdatecalendar');
}
}
if ($usingeditor) {
if ($this->editorcontext !== null) {
$this->properties->description = file_save_draft_area_files($this->properties->description['itemid'], $this->editorcontext->id, 'calendar', 'event_description', $this->properties->id, $this->editoroptions, $this->properties->description['text'], $this->editoroptions['forcehttps']);
} else {
$this->properties->format = $this->properties->description['format'];
$this->properties->description = $this->properties->description['text'];
}
}
$event = $DB->get_record('event', array('id' => $this->properties->id));
$updaterepeated = !empty($this->properties->repeatid) && !empty($this->properties->repeateditall);
if ($updaterepeated) {
// Update all
if ($this->properties->timestart != $event->timestart) {
$timestartoffset = $this->properties->timestart - $event->timestart;
$sql = "UPDATE {event}\n SET name = ?,\n description = ?,\n timestart = timestart + ?,\n timeduration = ?,\n timemodified = ?\n WHERE repeatid = ?";
$params = array($this->properties->name, $this->properties->description, $timestartoffset, $this->properties->timeduration, time(), $event->repeatid);
} else {
$sql = "UPDATE {event} SET name = ?, description = ?, timeduration = ?, timemodified = ? WHERE repeatid = ?";
$params = array($this->properties->name, $this->properties->description, $this->properties->timeduration, time(), $event->repeatid);
}
$DB->execute($sql, $params);
// Log the event update.
add_to_log($this->properties->courseid, 'calendar', 'edit all', 'event.php?action=edit&id=' . $this->properties->id, $this->properties->name);
} else {
$DB->update_record('event', $this->properties);
$event = calendar_event::load($this->properties->id);
$this->properties = $event->properties();
add_to_log($this->properties->courseid, 'calendar', 'edit', 'event.php?action=edit&id=' . $this->properties->id, $this->properties->name);
}
// Hook for tracking event updates
self::calendar_event_hook('update_event', array($this->properties, $updaterepeated));
return true;
}
}
/**
* Given a GMT timestamp (seconds since epoch), offsets it by
* the timezone. eg 3pm in India is 3pm GMT - 7 * 3600 seconds
*
* NOTE: this function does not include DST properly,
* you should use the PHP date stuff instead!
*
* @package core
* @category time
* @param int $date Timestamp in GMT
* @param float|int|string $timezone user timezone
* @return int
*/
function usertime($date, $timezone = 99)
{
$userdate = new DateTime('@' . $date);
$userdate->setTimezone(core_date::get_user_timezone_object($timezone));
$dst = dst_offset_on($date, $timezone);
return $date - $userdate->getOffset() + $dst;
}
$eventid = insert_record('event', $form, true);
/// Use the event id as the repeatid to link repeat entries together
if ($form->repeat) {
$form->repeatid = $form->id = $eventid;
update_record('event', $form);
// update the row, to set its repeatid
}
/// Log the event entry.
add_to_log($form->courseid, 'calendar', 'add', 'event.php?action=edit&id=' . $eventid, stripslashes($form->name));
if ($form->repeat) {
for ($i = 1; $i < $form->repeats; $i++) {
// What's the DST offset for the previous repeat?
$dst_offset_prev = dst_offset_on($form->timestart);
$form->timestart += WEEKSECS;
// If the offset has changed in the meantime, update this repeat accordingly
$form->timestart += $dst_offset_prev - dst_offset_on($form->timestart);
/// Get the event id for the log record.
$eventid = insert_record('event', $form, true);
/// Log the event entry.
add_to_log($form->courseid, 'calendar', 'add', 'event.php?action=edit&id=' . $eventid, stripslashes($form->name));
}
}
// OK, now redirect to day view
redirect(CALENDAR_URL . 'view.php?view=day&course=' . $urlcourse . '&cal_d=' . $form->startday . '&cal_m=' . $form->startmon . '&cal_y=' . $form->startyr);
} else {
foreach ($err as $key => $value) {
$focus = 'form.' . $key;
}
}
}
break;
/**
* Calculates the Daylight Saving Offset for a given date/time (timestamp)
* - Note: Daylight saving only works for string timezones and not for float.
*
* @package core
* @category time
* @param int $time must NOT be compensated at all, it has to be a pure timestamp
* @param int|float|string $strtimezone timezone for which offset is expected, if 99 or null
* then user's default timezone is used. {@link http://docs.moodle.org/dev/Time_API#Timezone}
* @return int
*/
function dst_offset_on($time, $strtimezone = null) {
global $SESSION;
if (!calculate_user_dst_table(null, null, $strtimezone) || empty($SESSION->dst_offsets)) {
return 0;
}
reset($SESSION->dst_offsets);
while (list($from, $offset) = each($SESSION->dst_offsets)) {
if ($from <= $time) {
break;
}
}
// This is the normal return path.
if ($offset !== null) {
return $offset;
}
// Reaching this point means we haven't calculated far enough, do it now:
// Calculate extra DST changes if needed and recurse. The recursion always
// moves toward the stopping condition, so will always end.
if ($from == 0) {
// We need a year smaller than $SESSION->dst_range[0].
if ($SESSION->dst_range[0] == 1971) {
return 0;
}
calculate_user_dst_table($SESSION->dst_range[0] - 5, null, $strtimezone);
return dst_offset_on($time, $strtimezone);
} else {
// We need a year larger than $SESSION->dst_range[1].
if ($SESSION->dst_range[1] == 2035) {
return 0;
}
calculate_user_dst_table(null, $SESSION->dst_range[1] + 5, $strtimezone);
return dst_offset_on($time, $strtimezone);
}
}
public function test_dst_offset_on()
{
$time = gmmktime(1, 1, 1, 3, 1, 2015);
$this->assertSame(3600, dst_offset_on($time, 'Pacific/Auckland'));
$this->assertSame(0, dst_offset_on($time, 'Australia/Perth'));
$this->assertSame(1800, dst_offset_on($time, 'Australia/Lord_Howe'));
$this->assertSame(0, dst_offset_on($time, 'Europe/Prague'));
$this->assertSame(0, dst_offset_on($time, 'America/New_York'));
$time = gmmktime(1, 1, 1, 5, 1, 2015);
$this->assertSame(0, dst_offset_on($time, 'Pacific/Auckland'));
$this->assertSame(0, dst_offset_on($time, 'Australia/Perth'));
$this->assertSame(0, dst_offset_on($time, 'Australia/Lord_Howe'));
$this->assertSame(3600, dst_offset_on($time, 'Europe/Prague'));
$this->assertSame(3600, dst_offset_on($time, 'America/New_York'));
}
/**
* Returns an int which represents the systems's timezone difference from GMT in seconds
* @deprecated since Moodle 2.9
* @param float|int|string $tz timezone for which offset is required.
* {@link http://docs.moodle.org/dev/Time_API#Timezone}
* @return int|bool if found, false is timezone 99 or error
*/
function get_timezone_offset($tz)
{
debugging('get_timezone_offset() is deprecated, use PHP DateTimeZone instead', DEBUG_DEVELOPER);
$date = new DateTime('now', new DateTimeZone(core_date::normalise_timezone($tz)));
return $date->getOffset() - dst_offset_on(time(), $tz);
}
/**
* This function converts a timestamp in timezone to GMT (UTC)
* @param $timestamp
* @param $timezone
* @param mixed $dstdate default null uses $timestamp (param1) for dst calc
* false disables dst offset,
* otherwise dstdate value used in place of timestamp for dst calc
* @return int adjusted timestamp (secs since epoch)
*/
function to_gmt($timestamp, $timezone = 99, $dstdate = null)
{
if ($dstdate == null) {
$dstdate = $timestamp;
}
$ts = $timestamp;
$dstoffset = null;
if (!empty($dstdate) && ($timezone == 99 || !is_numeric($timezone))) {
$strtimezone = is_numeric($timezone) ? NULL : $timezone;
$dstoffset = dst_offset_on($dstdate, $strtimezone);
$ts -= $dstoffset;
// or += see to_gmt()
}
$tz = get_user_timezone_offset($timezone);
$ts = abs($tz) > 13 ? $ts : $ts - $tz * HOURSECS;
//debug_error_log("/blocks/php_report/sharedlib.php::to_gmt({$timestamp}, {$timezone}): tz = {$tz} dstdate = {$dstdate} dstoffset = {$dstoffset} => $ts");
return $ts;
}
require_once $CFG->dirroot . '/mod/hotpot/locallib.php';
// admin_setting_xxx classes are defined in "lib/adminlib.php"
// new admin_setting_configcheckbox($name, $visiblename, $description, $defaultsetting);
// show Quizports on MyMoodle page (default=1)
$settings->add(new admin_setting_configcheckbox('hotpot_enablemymoodle', get_string('enablemymoodle', 'mod_hotpot'), get_string('configenablemymoodle', 'mod_hotpot'), 1));
// enable caching of browser content for each quiz (default=1)
$str = get_string('clearcache', 'mod_hotpot');
$url = new moodle_url('/mod/hotpot/tools/clear_cache.php', array('sesskey' => sesskey()));
$link = html_writer::link($url, $str, array('class' => 'small', 'style' => 'white-space: nowrap', 'onclick' => "this.target='_blank'")) . "\n";
$settings->add(new admin_setting_configcheckbox('hotpot_enablecache', get_string('enablecache', 'mod_hotpot'), get_string('configenablecache', 'mod_hotpot') . ' ' . $link, 1));
// restrict cron job to certain hours of the day (default=never)
if (class_exists('core_date') && method_exists('core_date', 'get_user_timezone')) {
// Moodle >= 2.9
$timezone = core_date::get_user_timezone(99);
$datetime = new DateTime('now', new DateTimeZone($timezone));
$timezone = ($datetime->getOffset() - dst_offset_on(time(), $timezone)) / 3600.0;
} else {
// Moodle <= 2.8
$timezone = get_user_timezone_offset();
}
if (abs($timezone) > 13) {
$timezone = 0;
} else {
if ($timezone > 0) {
$timezone = $timezone - 24;
}
}
$options = array();
for ($i = 0; $i <= 23; $i++) {
$options[($i - $timezone) % 24] = gmdate('H:i', $i * HOURSECS);
}
/**
* Returns a formatted string that represents a date in user time.
*
* Returns a formatted string that represents a date in user time
* <b>WARNING: note that the format is for strftime(), not date().</b>
* Because of a bug in most Windows time libraries, we can't use
* the nicer %e, so we have to use %d which has leading zeroes.
* A lot of the fuss in the function is just getting rid of these leading
* zeroes as efficiently as possible.
*
* If parameter fixday = true (default), then take off leading
* zero from %d, else maintain it.
*
* @param int $time the timestamp in UTC, as obtained from the database
* @param string $format strftime format
* @param int|float|string $timezone the timezone to use
* {@link http://docs.moodle.org/dev/Time_API#Timezone}
* @param bool $fixday if true then the leading zero from %d is removed,
* if false then the leading zero is maintained
* @param bool $fixhour if true then the leading zero from %I is removed,
* if false then the leading zero is maintained
* @return string the formatted date/time
*/
public function timestamp_to_date_string($time, $format, $timezone, $fixday, $fixhour)
{
global $CFG;
if (empty($format)) {
$format = get_string('strftimedaydatetime', 'langconfig');
}
if (!empty($CFG->nofixday)) {
// Config.php can force %d not to be fixed.
$fixday = false;
} else {
if ($fixday) {
$formatnoday = str_replace('%d', 'DD', $format);
$fixday = $formatnoday != $format;
$format = $formatnoday;
}
}
// Note: This logic about fixing 12-hour time to remove unnecessary leading
// zero is required because on Windows, PHP strftime function does not
// support the correct 'hour without leading zero' parameter (%l).
if (!empty($CFG->nofixhour)) {
// Config.php can force %I not to be fixed.
$fixhour = false;
} else {
if ($fixhour) {
$formatnohour = str_replace('%I', 'HH', $format);
$fixhour = $formatnohour != $format;
$format = $formatnohour;
}
}
// Add daylight saving offset for string timezones only, as we can't get dst for
// float values. if timezone is 99 (user default timezone), then try update dst.
if (99 == $timezone || !is_numeric($timezone)) {
$time += dst_offset_on($time, $timezone);
}
$timezone = get_user_timezone_offset($timezone);
// If we are running under Windows convert to windows encoding and then back to UTF-8
// (because it's impossible to specify UTF-8 to fetch locale info in Win32).
if (abs($timezone) > 13) {
// Server time.
$datestring = date_format_string($time, $format, $timezone);
if ($fixday) {
$daystring = ltrim(str_replace(array(' 0', ' '), '', strftime(' %d', $time)));
$datestring = str_replace('DD', $daystring, $datestring);
}
if ($fixhour) {
$hourstring = ltrim(str_replace(array(' 0', ' '), '', strftime(' %I', $time)));
$datestring = str_replace('HH', $hourstring, $datestring);
}
} else {
$time += (int) ($timezone * 3600);
$datestring = date_format_string($time, $format, $timezone);
if ($fixday) {
$daystring = ltrim(str_replace(array(' 0', ' '), '', gmstrftime(' %d', $time)));
$datestring = str_replace('DD', $daystring, $datestring);
}
if ($fixhour) {
$hourstring = ltrim(str_replace(array(' 0', ' '), '', gmstrftime(' %I', $time)));
$datestring = str_replace('HH', $hourstring, $datestring);
}
}
return $datestring;
}
