125 lines
3.7 KiB
PHP
125 lines
3.7 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Intl;
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use Symfony\Component\Intl\Exception\MissingResourceException;
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use Symfony\Component\Intl\Exception\RuntimeException;
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/**
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* Gives access to timezone-related ICU data.
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*
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* @author Roland Franssen <franssen.roland@gmail.com>
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*/
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final class Timezones extends ResourceBundle
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{
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/**
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* @return string[]
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*/
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public static function getIds(): array
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{
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return self::readEntry(['Zones'], 'meta');
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}
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public static function exists(string $timezone): bool
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{
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try {
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self::readEntry(['Names', $timezone]);
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return true;
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} catch (MissingResourceException $e) {
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try {
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new \DateTimeZone($timezone);
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return true;
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} catch (\Exception $e) {
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return false;
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}
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}
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}
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/**
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* @throws MissingResourceException if the timezone identifier does not exist or is an alias
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*/
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public static function getName(string $timezone, string $displayLocale = null): string
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{
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return self::readEntry(['Names', $timezone], $displayLocale);
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}
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/**
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* @return string[]
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*/
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public static function getNames(string $displayLocale = null): array
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{
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return self::asort(self::readEntry(['Names'], $displayLocale), $displayLocale);
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}
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/**
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* @throws \Exception if the timezone identifier does not exist
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* @throws RuntimeException if there's no timezone DST transition information available
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*/
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public static function getRawOffset(string $timezone, int $timestamp = null): int
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{
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if (null === $timestamp) {
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$timestamp = time();
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}
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$transitions = (new \DateTimeZone($timezone))->getTransitions($timestamp, $timestamp);
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if (!isset($transitions[0]['offset'])) {
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throw new RuntimeException('No timezone transitions available.');
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}
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return $transitions[0]['offset'];
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}
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public static function getGmtOffset(string $timezone, int $timestamp = null, string $displayLocale = null): string
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{
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$offset = self::getRawOffset($timezone, $timestamp);
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$abs = abs($offset);
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return sprintf(self::readEntry(['Meta', 'GmtFormat'], $displayLocale), sprintf(self::readEntry(['Meta', 'HourFormat'.(0 <= $offset ? 'Pos' : 'Neg')], $displayLocale), $abs / 3600, $abs / 60 % 60));
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}
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/**
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* @throws MissingResourceException if the timezone identifier has no associated country code
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*/
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public static function getCountryCode(string $timezone): string
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{
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return self::readEntry(['ZoneToCountry', $timezone], 'meta');
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}
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/**
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* @throws MissingResourceException if the country code does not exist
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*/
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public static function forCountryCode(string $country): array
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{
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try {
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return self::readEntry(['CountryToZone', $country], 'meta');
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} catch (MissingResourceException $e) {
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if (Countries::exists($country)) {
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return [];
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}
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if (Countries::exists(strtoupper($country))) {
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throw new MissingResourceException(sprintf('Country codes must be in uppercase, but "%s" was passed. Try with "%s" country code instead.', $country, strtoupper($country)));
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}
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throw $e;
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}
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}
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protected static function getPath(): string
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{
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return Intl::getDataDirectory().'/'.Intl::TIMEZONE_DIR;
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}
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}
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