You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
101 lines
2.5 KiB
101 lines
2.5 KiB
1 year ago
|
<?php declare(strict_types = 0);
|
||
|
|
/*
|
||
|
|
** Zabbix
|
||
|
|
** Copyright (C) 2001-2023 Zabbix SIA
|
||
|
|
**
|
||
|
|
** This program is free software; you can redistribute it and/or modify
|
||
|
|
** it under the terms of the GNU General Public License as published by
|
||
|
|
** the Free Software Foundation; either version 2 of the License, or
|
||
|
|
** (at your option) any later version.
|
||
|
|
**
|
||
|
|
** This program is distributed in the hope that it will be useful,
|
||
|
|
** but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
** GNU General Public License for more details.
|
||
|
|
**
|
||
|
|
** You should have received a copy of the GNU General Public License
|
||
|
|
** along with this program; if not, write to the Free Software
|
||
|
|
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
||
|
|
**/
|
||
|
|
|
||
|
|
|
||
|
|
class CTimezoneHelper {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get list of supported timezones.
|
||
|
|
* Example: ["Europe/London" => "(UTC+00:00) Europe/London", ...]
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public static function getList(): array {
|
||
|
|
static $timezones;
|
||
|
|
|
||
|
|
if ($timezones === null) {
|
||
|
|
$timezones = [];
|
||
|
|
|
||
|
|
foreach (DateTimeZone::listIdentifiers() as $timezone) {
|
||
|
|
$offset = (new DateTimeZone($timezone))->getOffset(new DateTime());
|
||
|
|
|
||
|
|
$timezones[$timezone] = [
|
||
|
|
'offset' => $offset,
|
||
|
|
'timezone' => $timezone,
|
||
|
|
'title' => '(UTC'.($offset < 0 ? '-' : '+').gmdate('H:i', abs($offset)).') '.$timezone
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
CArrayHelper::sort($timezones, ['offset', 'timezone']);
|
||
|
|
|
||
|
|
$timezones = array_column($timezones, 'title', 'timezone');
|
||
|
|
}
|
||
|
|
|
||
|
|
return $timezones;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get timezone title, optionally prefixed.
|
||
|
|
*
|
||
|
|
* @param string $timezone
|
||
|
|
* @param string|null $prefix
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public static function getTitle(string $timezone, string $prefix = null): string {
|
||
|
|
$timezone_title = self::getList()[$timezone];
|
||
|
|
|
||
|
|
if ($prefix === null) {
|
||
|
|
return $timezone_title;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $prefix.': '.$timezone_title;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Is timezone supported?
|
||
|
|
*
|
||
|
|
* @param string $timezone
|
||
|
|
*
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public static function isSupported(string $timezone): bool {
|
||
|
|
return array_key_exists($timezone, self::getList());
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get system timezone.
|
||
|
|
* Example: "Europe/London"
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public static function getSystemTimezone(): string {
|
||
|
|
$system_timezone_lower = strtolower(ini_get('date.timezone'));
|
||
|
|
|
||
|
|
foreach (array_keys(self::getList()) as $timezone) {
|
||
|
|
if ($system_timezone_lower === strtolower($timezone)) {
|
||
|
|
return $timezone;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return 'UTC';
|
||
|
|
}
|
||
|
|
}
|