function parse_time($d, $reference = null)
{
global $Now, $Opt;
if ($reference === null) {
$reference = $Now;
}
if (!isset($Opt["dateFormatTimezoneRemover"]) && function_exists("timezone_abbreviations_list")) {
$mytz = date_default_timezone_get();
$x = array();
foreach (timezone_abbreviations_list() as $tzname => $tzinfo) {
foreach ($tzinfo as $tz) {
if ($tz["timezone_id"] == $mytz) {
$x[] = preg_quote($tzname);
}
}
}
if (count($x) == 0) {
$x[] = preg_quote(date("T", $reference));
}
$Opt["dateFormatTimezoneRemover"] = "/(?:\\s|\\A)(?:" . join("|", $x) . ")(?:\\s|\\z)/i";
}
if (@$Opt["dateFormatTimezoneRemover"]) {
$d = preg_replace($Opt["dateFormatTimezoneRemover"], " ", $d);
}
$d = preg_replace('/\\butc([-+])/i', 'GMT$1', $d);
return strtotime($d, $reference);
}
public static function get_timezone_id()
{
// if site timezone string exists, return it
if ($timezone = get_option('timezone_string')) {
return $timezone;
}
// get UTC offset, if it isn't set return UTC
if (!($utc_offset = 3600 * get_option('gmt_offset', 0))) {
return 'UTC';
}
// attempt to guess the timezone string from the UTC offset
$timezone = timezone_name_from_abbr('', $utc_offset);
// last try, guess timezone string manually
if (FALSE === $timezone) {
$is_dst = date('I');
foreach (timezone_abbreviations_list() as $abbr) {
foreach ($abbr as $city) {
if ($city['dst'] == $is_dst && $city['offset'] == $utc_offset) {
return $city['timezone_id'];
}
}
}
}
return 'UTC';
// fallback
}
public static function get_local_timezone($reset = FALSE)
{
if ($reset) {
self::$local_timezone = NULL;
}
if (!isset(self::$local_timezone)) {
$tzstring = get_option('timezone_string');
if (empty($tzstring)) {
$gmt_offset = get_option('gmt_offset');
if ($gmt_offset == 0) {
$tzstring = 'UTC';
} else {
$gmt_offset *= HOUR_IN_SECONDS;
$tzstring = timezone_name_from_abbr('', $gmt_offset);
if (false === $tzstring) {
$is_dst = date('I');
foreach (timezone_abbreviations_list() as $abbr) {
foreach ($abbr as $city) {
if ($city['dst'] == $is_dst && $city['offset'] == $gmt_offset) {
$tzstring = $city['timezone_id'];
break 2;
}
}
}
}
if (false === $tzstring) {
$tzstring = 'UTC';
}
}
}
self::$local_timezone = new DateTimeZone($tzstring);
}
return self::$local_timezone;
}
function setTimezoneByOffset($offset)
{
date_default_timezone_set('UTC');
$testTimestamp = time();
$testLocaltime = localtime($testTimestamp, true);
$testHour = $testLocaltime['tm_hour'];
$abbrarray = timezone_abbreviations_list();
foreach ($abbrarray as $abbr) {
foreach ($abbr as $city) {
$val = false;
if ($city['timezone_id'] != 'Factory' && '' . @$city['timezone_id'] > '') {
if (isset($city['timezone_id'])) {
$val = date_default_timezone_set($city['timezone_id']);
if ($val) {
$testLocaltime = localtime($testTimestamp, true);
$hour = $testLocaltime['tm_hour'];
$testOffset = $hour - $testHour;
if ($testOffset == $offset || $testOffset == $offset + 24) {
return true;
}
}
}
}
}
}
date_default_timezone_set('UTC');
return false;
}
/**
* Returns the timezone string for a site, even if it's set to a UTC offset
*
* Adapted from http://www.php.net/manual/en/function.timezone-name-from-abbr.php#89155
*
* @return string valid PHP timezone string
*/
private function determine_timezone_string()
{
// If site timezone string exists, return it.
if ($timezone = get_option('timezone_string')) {
return $timezone;
}
// Get UTC offset, if it isn't set then return UTC.
if (0 === ($utc_offset = get_option('gmt_offset', 0))) {
return 'UTC';
}
// Adjust UTC offset from hours to seconds.
$utc_offset *= HOUR_IN_SECONDS;
// Attempt to guess the timezone string from the UTC offset.
$timezone = timezone_name_from_abbr('', $utc_offset);
// Last try, guess timezone string manually.
if (false === $timezone) {
$is_dst = date('I');
foreach (timezone_abbreviations_list() as $abbr) {
foreach ($abbr as $city) {
if ($city['dst'] == $is_dst && $city['offset'] == $utc_offset) {
return $city['timezone_id'];
}
}
}
}
// Fallback to UTC.
return 'UTC';
}
/**
* Returns the timezone string for a site, even if it's set to a UTC offset
*
* Adapted from http://www.php.net/manual/en/function.timezone-name-from-abbr.php#89155
*
* @return string valid PHP timezone string
*/
private static function wp_get_timezone_string()
{
$blog_timezone = get_option('timezone_string');
$blog_gmt_offset = get_option('gmt_offset', 0);
// if site timezone string exists, return it
if ($timezone = $blog_timezone) {
return $timezone;
}
// get UTC offset, if it isn't set then return UTC
if (0 === ($utc_offset = $blog_gmt_offset)) {
return 'UTC';
}
// adjust UTC offset from hours to seconds
$utc_offset *= 3600;
// attempt to guess the timezone string from the UTC offset
if ($timezone = timezone_name_from_abbr('', $utc_offset, 0)) {
return $timezone;
}
// last try, guess timezone string manually
$is_dst = date('I');
foreach (timezone_abbreviations_list() as $abbr) {
foreach ($abbr as $city) {
if ($city['dst'] == $is_dst && $city['offset'] == $utc_offset) {
return $city['timezone_id'];
}
}
}
// fallback to UTC
return 'UTC';
}
public function validTimezone($timezone)
{
$validTimezones = array();
$availableTimezones = timezone_abbreviations_list();
foreach ($availableTimezones as $zone) {
foreach ($zone as $item) {
$validTimezones[$item['timezone_id']] = true;
}
}
unset($validTimezones['']);
return isset($validTimezones[$timezone]);
}
function getTimezoneByOffset($offset)
{
$offset *= 3600;
// convert hour offset to seconds
$abbrarray = timezone_abbreviations_list();
foreach ($abbrarray as $abbr) {
foreach ($abbr as $city) {
if ($city['offset'] == $offset) {
return $city['timezone_id'];
}
}
}
return false;
}
/**
* Returns possible timezones as:
* array(
* '<timezone name>' => <true for DST, false otherwise>,
* ...
* )
*
* @return array
*/
function get_timezones()
{
$timezones = array();
foreach (timezone_abbreviations_list() as $tz_abbreviation) {
foreach ($tz_abbreviation as $timezone) {
if (strlen($timezone['timezone_id']) === 0) {
continue;
}
$timezones[$timezone['timezone_id']] = $timezone['dst'];
}
}
ksort($timezones);
return $timezones;
}
/**
* Timezone name
*
* @param sting $offset
*
* @return timezone name
*/
public static function tzOffsetToName($offset)
{
$offset *= 3600;
// convert hour offset to seconds
$abbrarray = timezone_abbreviations_list();
foreach ($abbrarray as $abbr) {
foreach ($abbr as $city) {
if ($city['offset'] == $offset) {
return $city['timezone_id'];
}
}
}
return FALSE;
}
/**
* all this method does is take an incoming GMT offset value ( e.g. "+1" or "-4" ) and returns a corresponding valid DateTimeZone() timezone_string.
* @param string $offset GMT offset
* @return string timezone_string (valid for DateTimeZone)
*/
private static function _timezone_convert_to_string_from_offset($offset)
{
//shamelessly taken from bottom comment at http://ca1.php.net/manual/en/function.timezone-name-from-abbr.php because timezone_name_from_abbr() did NOT work as expected - its not reliable
$offset *= 3600;
// convert hour offset to seconds
$abbrarray = timezone_abbreviations_list();
foreach ($abbrarray as $abbr) {
foreach ($abbr as $city) {
if ($city['offset'] === $offset && $city['dst'] === FALSE) {
return $city['timezone_id'];
}
}
}
return FALSE;
}
public function set_tz_by_offset($offset)
{
$offset = $offset * 60 * 60;
$abbrarray = timezone_abbreviations_list();
foreach ($abbrarray as $abbr) {
foreach ($abbr as $city) {
if ($city['offset'] == $offset) {
// remember to multiply $offset by -1 if you're getting it from js
date_default_timezone_set($city['timezone_id']);
return true;
}
}
}
date_default_timezone_set("ust");
return false;
}
function set_time_zone($time_zone)
{
if (preg_match('/(\\+|-)([0-9]{2}):([0-9]{2})/', $time_zone, $matches)) {
list(, $sign, $hours, $minutes) = $matches;
$offset = ($sign == '+' ? 1 : -1) * ((int) $hours * 3600 + (int) $minutes * 60);
if (($time_zone = timezone_name_from_abbr('', $offset, 0)) === FALSE) {
foreach (timezone_abbreviations_list() as $abbr) {
foreach ($abbr as $zone) {
if (!$zone['dst'] && $zone['offset'] == $offset) {
return date_default_timezone_set($zone['timezone_id']);
}
}
}
}
}
return $time_zone ? date_default_timezone_set($time_zone) : FALSE;
}
function TSfromLocalTS($ts)
{
$ts = (int) $ts;
$uid = (int) sUserMgr()->getCurrentUserID();
$user = new User($uid);
$user_timezone = $user->properties->getValue('TIMEZONE');
$tz = null;
$offset = null;
$timezoneAbbreviations = timezone_abbreviations_list();
foreach ($timezoneAbbreviations as $timezoneAbbreviations_item) {
foreach ($timezoneAbbreviations_item as $timezone_item) {
if ($timezone_item['timezone_id'] == $user_timezone) {
$tz = $timezone_item;
$offset = $timezone_item['offset'];
}
}
}
//Windows special fallback
if (!$tz) {
switch ($user_timezone) {
case 'Etc/GMT-11':
$offset = -39600;
break;
case 'Etc/GMT-2':
$offset = -7200;
break;
case 'Atlantic/South_Georgia':
$offset = -7200;
break;
case 'GMT':
$offset = 0;
break;
case 'Etc/GMT+12':
$offset = 43200;
break;
}
}
// Save original timezone
$currentTimeZone = date_default_timezone_get();
// Get offset of user timezone
date_default_timezone_set($user_timezone);
$realOffset = date('Z', $ts);
// Reset original timezone
date_default_timezone_set($currentTimeZone);
return $ts - $realOffset;
}
public static function getTz_array()
{
$tz_array = array();
foreach (timezone_abbreviations_list() as $abbr => $array) {
foreach ($array as $id => $array2) {
$offset = $array2['offset'];
$timezone_id = $array2['timezone_id'];
//$tz_byTimeZone[$timezone_id] = format_time($offset);
//$tz_byOffset[format_time($offset)] = $timezone_id;
$tz_array[$timezone_id] = array('timezone_id' => $timezone_id, 'offset' => TimezoneController::format_time($offset), 'int_offset' => round($offset / 60, 0));
}
//exit;
}
usort($tz_array, function ($a, $b) {
return $a['offset'] - $b['offset'];
});
return $tz_array;
}
function set_tz_by_offset($offset)
{
global $defaultimeZone;
$offset = $offset * 60 * 60;
$abbrarray = timezone_abbreviations_list();
foreach ($abbrarray as $abbr) {
//echo $abbr."<br>";
foreach ($abbr as $city) {
//echo $city['offset']." $offset<br>";
if ($city['offset'] == $offset) {
// remember to multiply $offset by -1 if you're getting it from js
date_default_timezone_set($city['timezone_id']);
return true;
}
}
}
date_default_timezone_set($defaultimeZone);
return false;
}
function setTimezoneByOffset($offset)
{
$testTimestamp = time();
date_default_timezone_set('UTC');
$testLocaltime = localtime($testTimestamp, true);
$testHour = $testLocaltime['tm_hour'];
$abbrarray = timezone_abbreviations_list();
foreach ($abbrarray as $abbr) {
//echo $abbr."<br>";
foreach ($abbr as $city) {
date_default_timezone_set($city['timezone_id']);
$testLocaltime = localtime($testTimestamp, true);
$hour = $testLocaltime['tm_hour'];
$testOffset = $hour - $testHour;
if ($testOffset == $offset) {
return true;
}
}
}
return false;
}
public static function tzOffsetToName($offset, $isDst = null)
{
if ($isDst === null) {
$isDst = date('I');
}
$zone = timezone_name_from_abbr('', $offset, $isDst);
if ($zone === false) {
foreach (timezone_abbreviations_list() as $abbr) {
foreach ($abbr as $city) {
if ((bool) $city['dst'] === (bool) $isDst && strlen($city['timezone_id']) > 0 && $city['offset'] == $offset) {
$zone = $city['timezone_id'];
break;
}
}
if ($zone !== false) {
break;
}
}
}
return $zone;
}
protected function testTimezone($part)
{
if (self::$timeZoneList === null) {
$idArray = array_keys(timezone_abbreviations_list());
self::$timeZoneList = [];
foreach ($idArray as $id) {
if (strlen($id) > 1) {
// 'a' is really a timezone?
self::$timeZoneList[] = strtolower($id);
self::$timeZoneList[] = strtoupper($id);
}
}
$idArray = \DateTimeZone::listIdentifiers();
foreach ($idArray as $id) {
self::$timeZoneList[] = strtolower($id);
self::$timeZoneList[] = strtoupper($id);
self::$timeZoneList[] = $id;
// Items like 'America/Chicago' should be left as is.
}
}
return in_array($part, self::$timeZoneList);
}
/**
* Get a timezone from a GMT offset.
*
* Converts a numeric offset into a valid timezone string.
*
* @since 3.0.0
*
* @param string|float $offset
*
* @return null|string
*/
function simcal_get_timezone_from_gmt_offset($offset)
{
if (is_numeric($offset)) {
if (0 === intval($offset)) {
return 'UTC';
} else {
$offset = floatval($offset) * 3600;
}
$timezone = timezone_name_from_abbr(null, $offset, false);
// This is buggy and might return false:
// @see http://php.net/manual/en/function.timezone-name-from-abbr.php#86928
// Therefore:
if (false == $timezone) {
$list = timezone_abbreviations_list();
foreach ($list as $abbr) {
foreach ($abbr as $city) {
if ($offset == $city['offset']) {
return $city['timezone_id'];
}
}
}
}
return $timezone;
}
return null;
}
/**
* @param string $offset In the format of +09:00, +02:00, -04:00 etc.
*
* @return string
*/
function parse_offset($offset)
{
//Make signed offsets unsigned for date_parse
if (\strpos($offset, '-') !== \false) {
$negative_offset = \true;
$offset = \str_replace('-', '', $offset);
} else {
if (\strpos($offset, '+') !== \false) {
$negative_offset = \false;
$offset = \str_replace('+', '', $offset);
} else {
return \false;
}
}
$parsed = \date_parse($offset);
$offset = $parsed['hour'] * 3600 + $parsed['minute'] * 60 + $parsed['second'];
//After date_parse is done, put the sign back
if ($negative_offset == \true) {
$offset = -\abs($offset);
}
//And then, look the offset up.
//timezone_name_from_abbr is not used because it returns false on some(most) offsets because it's mapping function is weird.
//That's been a bug in PHP since 2008!
foreach (\timezone_abbreviations_list() as $zones) {
foreach ($zones as $timezone) {
if ($timezone['offset'] == $offset) {
return $timezone['timezone_id'];
}
}
}
return \false;
}
<?php
date_default_timezone_set('UTC');
$timezone_abbreviations = timezone_abbreviations_list();
var_dump($timezone_abbreviations["utc"]);
echo "Done\n";
/**
* get_timezone_string_from_abbreviations_list
*
* @access public
* @param int $gmt_offset
* @return string
* @throws \EE_Error
*/
public static function get_timezone_string_from_abbreviations_list($gmt_offset = 0)
{
$abbreviations = timezone_abbreviations_list();
foreach ($abbreviations as $abbreviation) {
foreach ($abbreviation as $city) {
if ($city['offset'] === $gmt_offset && $city['dst'] === FALSE) {
// check if the timezone is valid but don't throw any errors if it isn't
if (EEH_DTT_Helper::validate_timezone($city['timezone_id'], false)) {
return $city['timezone_id'];
}
}
}
}
throw new EE_Error(sprintf(__('The provided GMT offset (%1$s), is invalid, please check with %2$sthis list%3$s for what valid timezones can be used', 'event_espresso'), $gmt_offset, '<a href="http://www.php.net/manual/en/timezones.php">', '</a>'));
}
/**
* This method simply gets the offset for the given valid timezone string and returns it.
* @param string $tz valid timezone string
* @return int if conversion can happen then we return the offset, if not then we return FALSE (or EE_Error)
*/
public static function timezone_convert_to_offset_from_string($tz)
{
$abbreviations = timezone_abbreviations_list();
$offset = NULL;
foreach ($abbreviations as $abbreviation) {
foreach ($abbreviation as $city) {
if ($city['timezone_id'] == $tz) {
$offset = $city['offset'];
}
}
}
//$offset will be in seconds so let's convert to hours and make sure its an int
return !empty($offset) ? (int) ($offset / 3600) : 0;
}
/**
* An array of timezone abbreviations that the system allows.
* Cache an array of just the abbreviation names because the
* whole timezone_abbreviations_list is huge so we don't want
* to get it more than necessary.
*
* @return array
*/
public static function date_timezone_abbr($refresh = FALSE)
{
$cached = Yii::app()->getCache()->get('date_timezone_abbreviations');
$data = isset($cached->data) ? $cached->data : array();
if (empty($data) || $refresh) {
$data = array_keys(timezone_abbreviations_list());
Yii::app()->getCache()->set('date_timezone_abbreviations', $data);
}
return $data;
}
public function __construct($locale, $tz, $format)
{
$this->locale = $locale;
if (preg_match('/^%([A-Z]+):(.*)$/', $format, $matches)) {
$tz = $matches[1];
$format = $matches[2];
}
$this->format = $format;
$this->timezone = new DateTimeZone($tz);
$date = new DateTime("", $this->timezone);
$this->gmt_offset = $this->timezone->getOffset($date);
$abbrev = timezone_abbreviations_list();
$this->abbrev = $tz;
if (!isset($abbrev[strtolower($tz)])) {
$id = $this->timezone->getName();
foreach ($abbrev as $key => $value) {
if ($value['timezone_id'] == $id) {
$this->abbrev = $key;
break;
}
}
}
}
/**
* Returns the difference between the server timez one and the local (users) time zone
*
* @param string $server
* @param string $local
* @return int
*/
function timezoneDiff($server, $local)
{
if (function_exists('timezone_abbreviations_list')) {
$timezones = timezone_abbreviations_list();
foreach ($timezones as $key => $zones) {
foreach ($zones as $id => $zone) {
if (!isset($offset_server) && $zone['timezone_id'] === $server) {
$offset_server = (int) $zone['offset'];
}
if (!isset($offset_local) && $zone['timezone_id'] === $local) {
$offset_local = (int) $zone['offset'];
}
if (isset($offset_server) && isset($offset_local)) {
return ($offset_server - $offset_local) / 3600;
}
}
}
}
return 0;
}
/**
* Constructor
*/
function timezone()
{
// are we riding a dinosaur?
if (!timezone::is_supported()) {
// Standard time zones as compiled by H.M. Nautical Almanac Office, June 2004
// http://aa.usno.navy.mil/faq/docs/world_tzones.html
$timezones = array(-12, -11, -10, -9.5, -9, -8.5, -8, -7, -6, -5, -4, -3.5, -3, -2, -1, 0, +1, +2, +3, +3.5, +4, +4.5, +5, +5.5, +6, +6.5, +7, +8, +9, +9.5, +10, +10.5, +11, +11.5, +12, +13, +14);
foreach ($timezones as $tz) {
// Fake timezone id
$timezone_id = 'GMT' . sprintf('%+05.1f', $tz);
$sign = $tz >= 0 ? '+' : '';
$label = sprintf("GMT %s%02d:%02d", $sign, $tz, abs($tz - (int) $tz) * 60);
$this->_details[$timezone_id]['continent'] = gTxt('timezone_gmt');
$this->_details[$timezone_id]['city'] = $label;
$this->_details[$timezone_id]['offset'] = $tz * 3600;
$this->_offsets[$tz * 3600] = $timezone_id;
}
} else {
$continents = array('Africa', 'America', 'Antarctica', 'Arctic', 'Asia', 'Atlantic', 'Australia', 'Europe', 'Indian', 'Pacific');
$server_tz = date_default_timezone_get();
$tzlist = timezone_abbreviations_list();
foreach ($tzlist as $abbr => $timezones) {
foreach ($timezones as $tz) {
$timezone_id = $tz['timezone_id'];
// $timezone_ids are not unique among abbreviations
if ($timezone_id && !isset($this->_details[$timezone_id])) {
$parts = explode('/', $timezone_id);
if (in_array($parts[0], $continents)) {
if (!empty($server_tz)) {
if (date_default_timezone_set($timezone_id)) {
$is_dst = date('I', time());
}
}
$this->_details[$timezone_id]['continent'] = $parts[0];
$this->_details[$timezone_id]['city'] = isset($parts[1]) ? $parts[1] : '';
$this->_details[$timezone_id]['subcity'] = isset($parts[2]) ? $parts[2] : '';
$this->_details[$timezone_id]['offset'] = date_offset_get(date_create()) - ($is_dst ? 3600 : 0);
$this->_details[$timezone_id]['dst'] = $tz['dst'];
$this->_details[$timezone_id]['abbr'] = strtoupper($abbr);
// Guesstimate a timezone key for a given GMT offset
$this->_offsets[$tz['offset']] = $timezone_id;
}
}
}
}
}
if (!empty($server_tz)) {
date_default_timezone_set($server_tz);
}
}
define('ALL_SERVER', SM_RESERVED_SLOT . SM_GENERIC . SM_KICK . SM_BAN . SM_UNBAN . SM_SLAY . SM_MAP . SM_CVAR . SM_CONFIG . SM_VOTE . SM_PASSWORD . SM_RCON . SM_CHEATS . SM_CUSTOM1 . SM_CUSTOM2 . SM_CUSTOM3 . SM_CUSTOM4 . SM_CUSTOM5 . SM_CUSTOM6 . SM_ROOT);
$GLOBALS['db']->Execute("SET NAMES utf8;");
$res = $GLOBALS['db']->Execute("SELECT * FROM " . DB_PREFIX . "_settings GROUP BY `setting`, `value`");
$GLOBALS['config'] = array();
while (!$res->EOF) {
$setting = array($res->fields['setting'] => $res->fields['value']);
$GLOBALS['config'] = array_merge_recursive($GLOBALS['config'], $setting);
$res->MoveNext();
}
define('SB_BANS_PER_PAGE', $GLOBALS['config']['banlist.bansperpage']);
define('MIN_PASS_LENGTH', $GLOBALS['config']['config.password.minlength']);
$dateformat = !empty($GLOBALS['config']['config.dateformat']) ? $GLOBALS['config']['config.dateformat'] : "m-d-y H:i";
if (version_compare(PHP_VERSION, "5") != -1) {
$offset = (empty($GLOBALS['config']['config.timezone']) ? 0 : $GLOBALS['config']['config.timezone']) * 3600;
date_default_timezone_set("GMT");
$abbrarray = timezone_abbreviations_list();
foreach ($abbrarray as $abbr) {
foreach ($abbr as $city) {
if ($city['offset'] == $offset && $city['dst'] == $GLOBALS['config']['config.summertime']) {
date_default_timezone_set($city['timezone_id']);
break 2;
}
}
}
} else {
if (empty($GLOBALS['config']['config.timezone'])) {
define('SB_TIMEZONE', 0);
} else {
define('SB_TIMEZONE', $GLOBALS['config']['config.timezone']);
}
}
/**
* Returns the blog timezone
*
* Gets timezone settings from the db. If a timezone identifier is used just turns
* it into a DateTimeZone. If an offset is usd, it tries to find a suitable timezone.
* If all else fails it uses UTC.
*
* @since 1.3.0
*
* @return DateTimeZone The blog timezone
*/
function eo_get_blog_timezone()
{
$tzstring = wp_cache_get('eventorganiser_timezone');
if (false === $tzstring) {
$tzstring = get_option('timezone_string');
$offset = get_option('gmt_offset');
// Remove old Etc mappings. Fallback to gmt_offset.
if (!empty($tz_string) && false !== strpos($tzstring, 'Etc/GMT')) {
$tzstring = '';
}
if (empty($tzstring) && $offset != 0) {
//use offset
$offset *= 3600;
// convert hour offset to seconds
$allowed_zones = timezone_abbreviations_list();
foreach ($allowed_zones as $abbr) {
foreach ($abbr as $city) {
if ($city['offset'] == $offset) {
$tzstring = $city['timezone_id'];
break 2;
}
}
}
}
//Issue with the timezone selected, set to 'UTC'
if (empty($tzstring)) {
$tzstring = 'UTC';
}
//Cache timezone string not timezone object
//Thanks to Ben Huson https://wordpress.org/support/topic/plugin-event-organiser-getting-500-is-error-when-w3-total-cache-is-on
wp_cache_set('eventorganiser_timezone', $tzstring);
}
if ($tzstring instanceof DateTimeZone) {
return $tzstring;
}
$timezone = new DateTimeZone($tzstring);
return $timezone;
}