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efrain |
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Core date and time related code.
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*
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* @package core
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* @copyright 2015 Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @author Petr Skoda <petr.skoda@totaralms.com>
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*/
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/**
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* Core date and time related code.
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*
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* @since Moodle 2.9
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* @package core
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* @copyright 2015 Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @author Petr Skoda <petr.skoda@totaralms.com>
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*/
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class core_date {
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/** @var array list of recommended zones */
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protected static $goodzones = null;
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/** @var array list of BC zones supported by PHP */
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protected static $bczones = null;
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/** @var array mapping of timezones not supported by PHP */
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protected static $badzones = null;
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/** @var string the default PHP timezone right after config.php */
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protected static $defaultphptimezone = null;
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/**
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* Returns a localised list of timezones.
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* @param string $currentvalue
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* @param bool $include99 should the server timezone info be included?
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* @return array
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*/
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public static function get_list_of_timezones($currentvalue = null, $include99 = false) {
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self::init_zones();
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// Localise first.
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$timezones = array();
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foreach (self::$goodzones as $tzkey => $ignored) {
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$timezones[$tzkey] = self::get_localised_timezone($tzkey);
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}
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core_collator::asort($timezones);
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// Add '99' if requested.
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if ($include99 or $currentvalue == 99) {
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$timezones['99'] = self::get_localised_timezone('99');
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}
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if (!isset($currentvalue) or isset($timezones[$currentvalue])) {
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return $timezones;
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}
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if (is_numeric($currentvalue)) {
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// UTC offset.
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if ($currentvalue == 0) {
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$a = 'UTC';
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} else {
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$modifier = ($currentvalue > 0) ? '+' : '';
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$a = 'UTC' . $modifier . number_format($currentvalue, 1);
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}
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$timezones[$currentvalue] = get_string('timezoneinvalid', 'core_admin', $a);
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} else {
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// Some string we don't recognise.
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$timezones[$currentvalue] = get_string('timezoneinvalid', 'core_admin', $currentvalue);
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}
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return $timezones;
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}
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/**
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* Returns localised timezone name.
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* @param string $tz
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* @return string
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*/
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public static function get_localised_timezone($tz) {
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if ($tz == 99) {
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$tz = self::get_server_timezone();
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$tz = self::get_localised_timezone($tz);
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return get_string('timezoneserver', 'core_admin', $tz);
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}
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if (get_string_manager()->string_exists(strtolower($tz), 'core_timezones')) {
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$tz = get_string(strtolower($tz), 'core_timezones');
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} else if ($tz === 'GMT' or $tz === 'Etc/GMT' or $tz === 'Etc/UTC') {
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$tz = 'UTC';
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} else if (preg_match('|^Etc/GMT([+-])([0-9]+)$|', $tz, $matches)) {
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$sign = $matches[1] === '+' ? '-' : '+';
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$tz = 'UTC' . $sign . $matches[2];
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}
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return $tz;
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}
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/**
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* Normalise the timezone name. If timezone not supported
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* this method falls back to server timezone (if valid)
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* or default PHP timezone.
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*
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* @param int|string|float|DateTimeZone $tz
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* @return string timezone compatible with PHP
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*/
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public static function normalise_timezone($tz) {
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global $CFG;
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if ($tz instanceof DateTimeZone) {
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return $tz->getName();
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}
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self::init_zones();
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$tz = (string)$tz;
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if (isset(self::$goodzones[$tz]) or isset(self::$bczones[$tz])) {
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return $tz;
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}
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$fixed = false;
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if (isset(self::$badzones[$tz])) {
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// Convert to known zone.
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$tz = self::$badzones[$tz];
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$fixed = true;
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} else if (is_numeric($tz)) {
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// Half hour numeric offsets were already tested, try rounding to integers here.
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$roundedtz = (string)(int)$tz;
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if (isset(self::$badzones[$roundedtz])) {
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$tz = self::$badzones[$roundedtz];
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$fixed = true;
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}
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}
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if ($fixed and isset(self::$goodzones[$tz]) or isset(self::$bczones[$tz])) {
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return $tz;
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}
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// Is server timezone usable?
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if (isset($CFG->timezone) and !is_numeric($CFG->timezone)) {
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$result = @timezone_open($CFG->timezone); // Hide notices if invalid.
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if ($result !== false) {
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return $result->getName();
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}
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}
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// Bad luck, use the php.ini default or value set in config.php.
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return self::get_default_php_timezone();
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}
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/**
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* Returns server timezone.
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* @return string normalised timezone name compatible with PHP
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**/
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public static function get_server_timezone() {
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global $CFG;
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if (!isset($CFG->timezone) or $CFG->timezone == 99 or $CFG->timezone === '') {
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return self::get_default_php_timezone();
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}
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return self::normalise_timezone($CFG->timezone);
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}
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/**
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* Returns server timezone.
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* @return DateTimeZone
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**/
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public static function get_server_timezone_object() {
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$tz = self::get_server_timezone();
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return new DateTimeZone($tz);
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}
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/**
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* Set PHP default timezone to $CFG->timezone.
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*/
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public static function set_default_server_timezone() {
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global $CFG;
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if (!isset($CFG->timezone) or $CFG->timezone == 99 or $CFG->timezone === '') {
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date_default_timezone_set(self::get_default_php_timezone());
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return;
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}
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$current = date_default_timezone_get();
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if ($current === $CFG->timezone) {
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// Nothing to do.
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return;
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}
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if (!isset(self::$goodzones)) {
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// For better performance try do do this without full tz init,
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// because this is called from lib/setup.php file on each page.
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$result = @timezone_open($CFG->timezone); // Ignore error if setting invalid.
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if ($result !== false) {
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date_default_timezone_set($result->getName());
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return;
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}
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}
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// Slow way is the last option.
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date_default_timezone_set(self::get_server_timezone());
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}
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/**
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* Returns user timezone.
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*
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* Ideally the parameter should be a real user record,
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* unfortunately the legacy code is using 99 for both server
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* and default value.
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*
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* Example of using legacy API:
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* // Date for other user via legacy API.
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* $datestr = userdate($time, core_date::get_user_timezone($user));
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*
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* The coding style rules in Moodle are moronic,
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* why cannot the parameter names have underscores in them?
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*
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* @param mixed $userorforcedtz user object or legacy forced timezone string or tz object
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* @return string normalised timezone name compatible with PHP
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*/
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public static function get_user_timezone($userorforcedtz = null) {
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global $USER, $CFG;
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if ($userorforcedtz instanceof DateTimeZone) {
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return $userorforcedtz->getName();
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}
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if (isset($userorforcedtz) and !is_object($userorforcedtz) and $userorforcedtz != 99) {
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// Legacy code is forcing timezone in legacy API.
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return self::normalise_timezone($userorforcedtz);
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}
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if (isset($CFG->forcetimezone) and $CFG->forcetimezone != 99) {
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// Override any user timezone.
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return self::normalise_timezone($CFG->forcetimezone);
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}
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if ($userorforcedtz === null) {
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$tz = isset($USER->timezone) ? $USER->timezone : 99;
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} else if (is_object($userorforcedtz)) {
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$tz = isset($userorforcedtz->timezone) ? $userorforcedtz->timezone : 99;
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} else {
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if ($userorforcedtz == 99) {
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$tz = isset($USER->timezone) ? $USER->timezone : 99;
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} else {
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$tz = $userorforcedtz;
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}
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}
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if ($tz == 99) {
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return self::get_server_timezone();
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}
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return self::normalise_timezone($tz);
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}
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/**
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* Return user timezone object.
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*
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* @param mixed $userorforcedtz
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* @return DateTimeZone
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*/
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public static function get_user_timezone_object($userorforcedtz = null) {
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$tz = self::get_user_timezone($userorforcedtz);
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return new DateTimeZone($tz);
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}
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/**
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* Return default timezone set in php.ini or config.php.
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* @return string normalised timezone compatible with PHP
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*/
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public static function get_default_php_timezone() {
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if (!isset(self::$defaultphptimezone)) {
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// This should not happen.
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self::store_default_php_timezone();
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}
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return self::$defaultphptimezone;
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}
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/**
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* To be called from lib/setup.php only!
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*/
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public static function store_default_php_timezone() {
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if ((defined('PHPUNIT_TEST') and PHPUNIT_TEST)
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or defined('BEHAT_SITE_RUNNING') or defined('BEHAT_TEST') or defined('BEHAT_UTIL')) {
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// We want all test sites to be consistent by default.
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self::$defaultphptimezone = 'Australia/Perth';
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return;
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}
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if (!isset(self::$defaultphptimezone)) {
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self::$defaultphptimezone = date_default_timezone_get();
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}
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}
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/**
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* Do not use directly - use $this->setTimezone('xx', $tz) instead in your test case.
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* @param string $tz valid timezone name
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*/
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public static function phpunit_override_default_php_timezone($tz) {
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if (!defined('PHPUNIT_TEST')) {
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throw new coding_exception('core_date::phpunit_override_default_php_timezone() must be used only from unit tests');
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}
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$result = timezone_open($tz ?? ''); // This triggers error if $tz invalid.
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if ($result !== false) {
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self::$defaultphptimezone = $tz;
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} else {
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self::$defaultphptimezone = 'Australia/Perth';
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}
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}
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/**
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* To be called from phpunit reset only, after restoring $CFG.
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*/
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public static function phpunit_reset() {
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global $CFG;
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if (!defined('PHPUNIT_TEST')) {
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throw new coding_exception('core_date::phpunit_reset() must be used only from unit tests');
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}
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self::store_default_php_timezone();
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date_default_timezone_set($CFG->timezone);
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}
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/**
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* Initialise timezone arrays, call before use.
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*/
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protected static function init_zones() {
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if (isset(self::$goodzones)) {
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return;
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}
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$zones = DateTimeZone::listIdentifiers();
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self::$goodzones = array_fill_keys($zones, true);
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$zones = DateTimeZone::listIdentifiers(DateTimeZone::ALL_WITH_BC);
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self::$bczones = array();
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foreach ($zones as $zone) {
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if (isset(self::$goodzones[$zone])) {
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continue;
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}
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self::$bczones[$zone] = true;
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}
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|
362 |
self::$badzones = array(
|
|
|
363 |
// Windows time zones.
|
|
|
364 |
'Dateline Standard Time' => 'Etc/GMT+12',
|
|
|
365 |
'Hawaiian Standard Time' => 'Pacific/Honolulu',
|
|
|
366 |
'Alaskan Standard Time' => 'America/Anchorage',
|
|
|
367 |
'Pacific Standard Time (Mexico)' => 'America/Tijuana',
|
|
|
368 |
'Pacific Standard Time' => 'America/Los_Angeles',
|
|
|
369 |
'US Mountain Standard Time' => 'America/Phoenix',
|
|
|
370 |
'Mountain Standard Time (Mexico)' => 'America/Chihuahua',
|
|
|
371 |
'Mountain Standard Time' => 'America/Denver',
|
|
|
372 |
'Central America Standard Time' => 'America/Guatemala',
|
|
|
373 |
'Central Standard Time' => 'America/Chicago',
|
|
|
374 |
'Central Standard Time (Mexico)' => 'America/Mexico_City',
|
|
|
375 |
'Canada Central Standard Time' => 'America/Regina',
|
|
|
376 |
'SA Pacific Standard Time' => 'America/Bogota',
|
|
|
377 |
'S.A. Pacific Standard Time' => 'America/Bogota',
|
|
|
378 |
'Eastern Standard Time' => 'America/New_York',
|
|
|
379 |
'US Eastern Standard Time' => 'America/Indiana/Indianapolis',
|
|
|
380 |
'U.S. Eastern Standard Time' => 'America/Indiana/Indianapolis',
|
|
|
381 |
'Venezuela Standard Time' => 'America/Caracas',
|
|
|
382 |
'Paraguay Standard Time' => 'America/Asuncion',
|
|
|
383 |
'Atlantic Standard Time' => 'America/Halifax',
|
|
|
384 |
'Central Brazilian Standard Time' => 'America/Cuiaba',
|
|
|
385 |
'SA Western Standard Time' => 'America/La_Paz',
|
|
|
386 |
'S.A. Western Standard Time' => 'America/La_Paz',
|
|
|
387 |
'Pacific SA Standard Time' => 'America/Santiago',
|
|
|
388 |
'Pacific S.A. Standard Time' => 'America/Santiago',
|
|
|
389 |
'Newfoundland Standard Time' => 'America/St_Johns',
|
|
|
390 |
'Newfoundland and Labrador Standard Time' => 'America/St_Johns',
|
|
|
391 |
'E. South America Standard Time' => 'America/Sao_Paulo',
|
|
|
392 |
'Argentina Standard Time' => 'America/Argentina/Buenos_Aires',
|
|
|
393 |
'SA Eastern Standard Time' => 'America/Cayenne',
|
|
|
394 |
'S.A. Eastern Standard Time' => 'America/Cayenne',
|
|
|
395 |
'Greenland Standard Time' => 'America/Godthab',
|
|
|
396 |
'Montevideo Standard Time' => 'America/Montevideo',
|
|
|
397 |
'Bahia Standard Time' => 'America/Bahia',
|
|
|
398 |
'Azores Standard Time' => 'Atlantic/Azores',
|
|
|
399 |
'Cape Verde Standard Time' => 'Atlantic/Cape_Verde',
|
|
|
400 |
'Morocco Standard Time' => 'Africa/Casablanca',
|
|
|
401 |
'GMT Standard Time' => 'Europe/London',
|
|
|
402 |
'Greenwich Standard Time' => 'Atlantic/Reykjavik',
|
|
|
403 |
'W. Europe Standard Time' => 'Europe/Berlin',
|
|
|
404 |
'Central Europe Standard Time' => 'Europe/Budapest',
|
|
|
405 |
'Romance Standard Time' => 'Europe/Paris',
|
|
|
406 |
'Central European Standard Time' => 'Europe/Warsaw',
|
|
|
407 |
'W. Central Africa Standard Time' => 'Africa/Lagos',
|
|
|
408 |
'Namibia Standard Time' => 'Africa/Windhoek',
|
|
|
409 |
'Jordan Standard Time' => 'Asia/Amman',
|
|
|
410 |
'GTB Standard Time' => 'Europe/Bucharest',
|
|
|
411 |
'Middle East Standard Time' => 'Asia/Beirut',
|
|
|
412 |
'Egypt Standard Time' => 'Africa/Cairo',
|
|
|
413 |
'Syria Standard Time' => 'Asia/Damascus',
|
|
|
414 |
'South Africa Standard Time' => 'Africa/Johannesburg',
|
|
|
415 |
'FLE Standard Time' => 'Europe/Kiev',
|
|
|
416 |
'Turkey Standard Time' => 'Europe/Istanbul',
|
|
|
417 |
'Israel Standard Time' => 'Asia/Jerusalem',
|
|
|
418 |
'Kaliningrad Standard Time' => 'Europe/Kaliningrad',
|
|
|
419 |
'Libya Standard Time' => 'Africa/Tripoli',
|
|
|
420 |
'Arabic Standard Time' => 'Asia/Baghdad',
|
|
|
421 |
'Arab Standard Time' => 'Asia/Riyadh',
|
|
|
422 |
'Belarus Standard Time' => 'Europe/Minsk',
|
|
|
423 |
'Russian Standard Time' => 'Europe/Moscow',
|
|
|
424 |
'E. Africa Standard Time' => 'Africa/Nairobi',
|
|
|
425 |
'Iran Standard Time' => 'Asia/Tehran',
|
|
|
426 |
'Arabian Standard Time' => 'Asia/Dubai',
|
|
|
427 |
'Azerbaijan Standard Time' => 'Asia/Baku',
|
|
|
428 |
'Russia Time Zone 3' => 'Europe/Samara',
|
|
|
429 |
'Mauritius Standard Time' => 'Indian/Mauritius',
|
|
|
430 |
'Georgian Standard Time' => 'Asia/Tbilisi',
|
|
|
431 |
'Caucasus Standard Time' => 'Asia/Yerevan',
|
|
|
432 |
'Afghanistan Standard Time' => 'Asia/Kabul',
|
|
|
433 |
'West Asia Standard Time' => 'Asia/Tashkent',
|
|
|
434 |
'Ekaterinburg Standard Time' => 'Asia/Yekaterinburg',
|
|
|
435 |
'Pakistan Standard Time' => 'Asia/Karachi',
|
|
|
436 |
'India Standard Time' => 'Asia/Kolkata', // PHP and Windows differ in spelling.
|
|
|
437 |
'Sri Lanka Standard Time' => 'Asia/Colombo',
|
|
|
438 |
'Nepal Standard Time' => 'Asia/Kathmandu',
|
|
|
439 |
'Central Asia Standard Time' => 'Asia/Almaty',
|
|
|
440 |
'Bangladesh Standard Time' => 'Asia/Dhaka',
|
|
|
441 |
'N. Central Asia Standard Time' => 'Asia/Novosibirsk',
|
|
|
442 |
'Myanmar Standard Time' => 'Asia/Yangon',
|
|
|
443 |
'SE Asia Standard Time' => 'Asia/Bangkok',
|
|
|
444 |
'S.E. Asia Standard Time' => 'Asia/Bangkok',
|
|
|
445 |
'North Asia Standard Time' => 'Asia/Krasnoyarsk',
|
|
|
446 |
'China Standard Time' => 'Asia/Shanghai',
|
|
|
447 |
'North Asia East Standard Time' => 'Asia/Irkutsk',
|
|
|
448 |
'Singapore Standard Time' => 'Asia/Singapore',
|
|
|
449 |
'W. Australia Standard Time' => 'Australia/Perth',
|
|
|
450 |
'Taipei Standard Time' => 'Asia/Taipei',
|
|
|
451 |
'Ulaanbaatar Standard Time' => 'Asia/Ulaanbaatar',
|
|
|
452 |
'Tokyo Standard Time' => 'Asia/Tokyo',
|
|
|
453 |
'Korea Standard Time' => 'Asia/Seoul',
|
|
|
454 |
'Yakutsk Standard Time' => 'Asia/Yakutsk',
|
|
|
455 |
'Cen. Australia Standard Time' => 'Australia/Adelaide',
|
|
|
456 |
'AUS Central Standard Time' => 'Australia/Darwin',
|
|
|
457 |
'A.U.S. Central Standard Time' => 'Australia/Darwin',
|
|
|
458 |
'E. Australia Standard Time' => 'Australia/Brisbane',
|
|
|
459 |
'AUS Eastern Standard Time' => 'Australia/Sydney',
|
|
|
460 |
'A.U.S. Eastern Standard Time' => 'Australia/Sydney',
|
|
|
461 |
'West Pacific Standard Time' => 'Pacific/Port_Moresby',
|
|
|
462 |
'Tasmania Standard Time' => 'Australia/Hobart',
|
|
|
463 |
'Magadan Standard Time' => 'Asia/Magadan',
|
|
|
464 |
'Vladivostok Standard Time' => 'Asia/Vladivostok',
|
|
|
465 |
'Russia Time Zone 10' => 'Asia/Srednekolymsk',
|
|
|
466 |
'Central Pacific Standard Time' => 'Pacific/Guadalcanal',
|
|
|
467 |
'Russia Time Zone 11' => 'Asia/Kamchatka',
|
|
|
468 |
'New Zealand Standard Time' => 'Pacific/Auckland',
|
|
|
469 |
'Fiji Standard Time' => 'Pacific/Fiji',
|
|
|
470 |
'Fiji Islands Standard Time' => 'Pacific/Fiji',
|
|
|
471 |
'Tonga Standard Time' => 'Pacific/Tongatapu',
|
|
|
472 |
'Samoa Standard Time' => 'Pacific/Apia',
|
|
|
473 |
'Line Islands Standard Time' => 'Pacific/Kiritimati',
|
|
|
474 |
'Mexico Standard Time 2' => 'America/Chihuahua',
|
|
|
475 |
'Mexico Standard Time' => 'America/Mexico_City',
|
|
|
476 |
'U.S. Mountain Standard Time' => 'America/Phoenix',
|
|
|
477 |
'Mid-Atlantic Standard Time' => 'Atlantic/South_Georgia',
|
|
|
478 |
'E. Europe Standard Time' => 'Europe/Minsk',
|
|
|
479 |
'Transitional Islamic State of Afghanistan Standard Time' => 'Asia/Kabul',
|
|
|
480 |
'Armenian Standard Time' => 'Asia/Yerevan',
|
|
|
481 |
'Kamchatka Standard Time' => 'Asia/Kamchatka',
|
|
|
482 |
|
|
|
483 |
// A lot more bad legacy (deprecated) time zones.
|
|
|
484 |
'Australia/ACT' => 'Australia/Sydney',
|
|
|
485 |
'Australia/LHI' => 'Australia/Lord_Howe',
|
|
|
486 |
'Australia/North' => 'Australia/Darwin',
|
|
|
487 |
'Australia/NSW' => 'Australia/Sydney',
|
|
|
488 |
'Australia/Queensland' => 'Australia/Brisbane',
|
|
|
489 |
'Australia/South' => 'Australia/Adelaide',
|
|
|
490 |
'Australia/Tasmania' => 'Australia/Hobart',
|
|
|
491 |
'Australia/Victoria' => 'Australia/Melbourne',
|
|
|
492 |
'Australia/West' => 'Australia/Perth',
|
|
|
493 |
'Brazil/Acre' => 'America/Rio_Branco',
|
|
|
494 |
'Brazil/DeNoronha' => 'America/Noronha',
|
|
|
495 |
'Brazil/East' => 'America/Sao_Paulo',
|
|
|
496 |
'Brazil/West' => 'America/Manaus',
|
|
|
497 |
'Canada/Atlantic' => 'America/Halifax',
|
|
|
498 |
'Canada/Central' => 'America/Winnipeg',
|
|
|
499 |
'Canada/Eastern' => 'America/Toronto',
|
|
|
500 |
'Canada/Mountain' => 'America/Edmonton',
|
|
|
501 |
'Canada/Newfoundland' => 'America/St_Johns',
|
|
|
502 |
'Canada/Pacific' => 'America/Vancouver',
|
|
|
503 |
'Canada/Saskatchewan' => 'America/Regina',
|
|
|
504 |
'Canada/Yukon' => 'America/Whitehorse',
|
|
|
505 |
'CDT' => 'America/Chicago',
|
|
|
506 |
'CET' => 'Europe/Berlin',
|
|
|
507 |
'Central European Time' => 'Europe/Berlin',
|
|
|
508 |
'Central Time' => 'America/Chicago',
|
|
|
509 |
'Chile/Continental' => 'America/Santiago',
|
|
|
510 |
'Chile/EasterIsland' => 'Pacific/Easter',
|
|
|
511 |
'China Time' => 'Asia/Shanghai',
|
|
|
512 |
'CST' => 'America/Chicago',
|
|
|
513 |
'CST6CDT' => 'America/Chicago',
|
|
|
514 |
'Cuba' => 'America/Havana',
|
|
|
515 |
'EDT' => 'America/New_York',
|
|
|
516 |
'EET' => 'Europe/Kiev',
|
|
|
517 |
'Egypt' => 'Africa/Cairo',
|
|
|
518 |
'Eire' => 'Europe/Dublin',
|
|
|
519 |
'EST' => 'America/Cancun',
|
|
|
520 |
'EST5EDT' => 'America/New_York',
|
|
|
521 |
'Eastern Time' => 'America/New_York',
|
|
|
522 |
'Etc/Greenwich' => 'Etc/GMT',
|
|
|
523 |
'Etc/UCT' => 'Etc/UTC',
|
|
|
524 |
'Etc/Universal' => 'Etc/UTC',
|
|
|
525 |
'Etc/Zulu' => 'Etc/UTC',
|
|
|
526 |
'FET' => 'Europe/Minsk',
|
|
|
527 |
'GB' => 'Europe/London',
|
|
|
528 |
'GB-Eire' => 'Europe/London',
|
|
|
529 |
'Greenwich' => 'Etc/GMT',
|
|
|
530 |
'Hongkong' => 'Asia/Hong_Kong',
|
|
|
531 |
'HST' => 'Pacific/Honolulu',
|
|
|
532 |
'Iceland' => 'Atlantic/Reykjavik',
|
|
|
533 |
'India Time' => 'Asia/Kolkata',
|
|
|
534 |
'Iran' => 'Asia/Tehran',
|
|
|
535 |
'Israel' => 'Asia/Jerusalem',
|
|
|
536 |
'IST' => 'Asia/Kolkata',
|
|
|
537 |
'Jamaica' => 'America/Jamaica',
|
|
|
538 |
'Japan' => 'Asia/Tokyo',
|
|
|
539 |
'Japan Standard Time' => 'Asia/Tokyo',
|
|
|
540 |
'Japan Time' => 'Asia/Tokyo',
|
|
|
541 |
'JST' => 'Asia/Tokyo',
|
|
|
542 |
'Kwajalein' => 'Pacific/Kwajalein',
|
|
|
543 |
'Libya' => 'Africa/Tripoli',
|
|
|
544 |
'MDT' => 'America/Denver',
|
|
|
545 |
'MET' => 'Europe/Paris',
|
|
|
546 |
'Mexico/BajaNorte' => 'America/Tijuana',
|
|
|
547 |
'Mexico/BajaSur' => 'America/Mazatlan',
|
|
|
548 |
'Mexico/General' => 'America/Mexico_City',
|
|
|
549 |
'MST' => 'America/Phoenix',
|
|
|
550 |
'MST7MDT' => 'America/Denver',
|
|
|
551 |
'Navajo' => 'America/Denver',
|
|
|
552 |
'NZ' => 'Pacific/Auckland',
|
|
|
553 |
'NZ-CHAT' => 'Pacific/Chatham',
|
|
|
554 |
'Pacific Time' => 'America/Los_Angeles',
|
|
|
555 |
'PDT' => 'America/Los_Angeles',
|
|
|
556 |
'Poland' => 'Europe/Warsaw',
|
|
|
557 |
'Portugal' => 'Europe/Lisbon',
|
|
|
558 |
'PRC' => 'Asia/Shanghai',
|
|
|
559 |
'PST' => 'America/Los_Angeles',
|
|
|
560 |
'PST8PDT' => 'America/Los_Angeles',
|
|
|
561 |
'ROC' => 'Asia/Taipei',
|
|
|
562 |
'ROK' => 'Asia/Seoul',
|
|
|
563 |
'Singapore' => 'Asia/Singapore',
|
|
|
564 |
'Turkey' => 'Europe/Istanbul',
|
|
|
565 |
'UCT' => 'Etc/UTC',
|
|
|
566 |
'Universal' => 'Etc/UTC',
|
|
|
567 |
'US/Alaska' => 'America/Anchorage',
|
|
|
568 |
'US/Aleutian' => 'America/Adak',
|
|
|
569 |
'US/Arizona' => 'America/Phoenix',
|
|
|
570 |
'US/Central' => 'America/Chicago',
|
|
|
571 |
'US/East-Indiana' => 'America/Indiana/Indianapolis',
|
|
|
572 |
'US/Eastern' => 'America/New_York',
|
|
|
573 |
'US/Hawaii' => 'Pacific/Honolulu',
|
|
|
574 |
'US/Indiana-Starke' => 'America/Indiana/Knox',
|
|
|
575 |
'US/Michigan' => 'America/Detroit',
|
|
|
576 |
'US/Mountain' => 'America/Denver',
|
|
|
577 |
'US/Pacific' => 'America/Los_Angeles',
|
|
|
578 |
'US/Pacific-New' => 'America/Los_Angeles',
|
|
|
579 |
'US/Samoa' => 'Pacific/Pago_Pago',
|
|
|
580 |
'W-SU' => 'Europe/Moscow',
|
|
|
581 |
'WET' => 'Europe/London',
|
|
|
582 |
'Zulu' => 'Etc/UTC',
|
|
|
583 |
|
|
|
584 |
// Some UTC variations.
|
|
|
585 |
'UTC-01' => 'Etc/GMT+1',
|
|
|
586 |
'UTC-02' => 'Etc/GMT+2',
|
|
|
587 |
'UTC-03' => 'Etc/GMT+3',
|
|
|
588 |
'UTC-04' => 'Etc/GMT+4',
|
|
|
589 |
'UTC-05' => 'Etc/GMT+5',
|
|
|
590 |
'UTC-06' => 'Etc/GMT+6',
|
|
|
591 |
'UTC-07' => 'Etc/GMT+7',
|
|
|
592 |
'UTC-08' => 'Etc/GMT+8',
|
|
|
593 |
'UTC-09' => 'Etc/GMT+9',
|
|
|
594 |
|
|
|
595 |
// Some weird GMTs.
|
|
|
596 |
'Etc/GMT+0' => 'Etc/GMT',
|
|
|
597 |
'Etc/GMT-0' => 'Etc/GMT',
|
|
|
598 |
'Etc/GMT0' => 'Etc/GMT',
|
|
|
599 |
|
|
|
600 |
// Link old timezone names with their new names.
|
|
|
601 |
'Africa/Asmera' => 'Africa/Asmara',
|
|
|
602 |
'Africa/Timbuktu' => 'Africa/Abidjan',
|
|
|
603 |
'America/Argentina/ComodRivadavia' => 'America/Argentina/Catamarca',
|
|
|
604 |
'America/Atka' => 'America/Adak',
|
|
|
605 |
'America/Buenos_Aires' => 'America/Argentina/Buenos_Aires',
|
|
|
606 |
'America/Catamarca' => 'America/Argentina/Catamarca',
|
|
|
607 |
'America/Coral_Harbour' => 'America/Atikokan',
|
|
|
608 |
'America/Cordoba' => 'America/Argentina/Cordoba',
|
|
|
609 |
'America/Ensenada' => 'America/Tijuana',
|
|
|
610 |
'America/Fort_Wayne' => 'America/Indiana/Indianapolis',
|
|
|
611 |
'America/Godthab' => 'America/Nuuk',
|
|
|
612 |
'America/Indianapolis' => 'America/Indiana/Indianapolis',
|
|
|
613 |
'America/Jujuy' => 'America/Argentina/Jujuy',
|
|
|
614 |
'America/Knox_IN' => 'America/Indiana/Knox',
|
|
|
615 |
'America/Louisville' => 'America/Kentucky/Louisville',
|
|
|
616 |
'America/Mendoza' => 'America/Argentina/Mendoza',
|
|
|
617 |
'America/Montreal' => 'America/Toronto',
|
|
|
618 |
'America/Porto_Acre' => 'America/Rio_Branco',
|
|
|
619 |
'America/Rosario' => 'America/Argentina/Cordoba',
|
|
|
620 |
'America/Santa_Isabel' => 'America/Tijuana',
|
|
|
621 |
'America/Shiprock' => 'America/Denver',
|
|
|
622 |
'America/Virgin' => 'America/Port_of_Spain',
|
|
|
623 |
'Antarctica/South_Pole' => 'Pacific/Auckland',
|
|
|
624 |
'Asia/Ashkhabad' => 'Asia/Ashgabat',
|
|
|
625 |
'Asia/Calcutta' => 'Asia/Kolkata',
|
|
|
626 |
'Asia/Chongqing' => 'Asia/Shanghai',
|
|
|
627 |
'Asia/Chungking' => 'Asia/Shanghai',
|
|
|
628 |
'Asia/Dacca' => 'Asia/Dhaka',
|
|
|
629 |
'Asia/Harbin' => 'Asia/Shanghai',
|
|
|
630 |
'Asia/Istanbul' => 'Europe/Istanbul',
|
|
|
631 |
'Asia/Kashgar' => 'Asia/Urumqi',
|
|
|
632 |
'Asia/Katmandu' => 'Asia/Kathmandu',
|
|
|
633 |
'Asia/Macao' => 'Asia/Macau',
|
|
|
634 |
'Asia/Rangoon' => 'Asia/Yangon',
|
|
|
635 |
'Asia/Saigon' => 'Asia/Ho_Chi_Minh',
|
|
|
636 |
'Asia/Tel_Aviv' => 'Asia/Jerusalem',
|
|
|
637 |
'Asia/Thimbu' => 'Asia/Thimphu',
|
|
|
638 |
'Asia/Ujung_Pandang' => 'Asia/Makassar',
|
|
|
639 |
'Asia/Ulan_Bator' => 'Asia/Ulaanbaatar',
|
|
|
640 |
'Atlantic/Faeroe' => 'Atlantic/Faroe',
|
|
|
641 |
'Atlantic/Jan_Mayen' => 'Europe/Oslo',
|
|
|
642 |
'Australia/Canberra' => 'Australia/Sydney',
|
|
|
643 |
'Australia/Yancowinna' => 'Australia/Broken_Hill',
|
|
|
644 |
'Europe/Belfast' => 'Europe/London',
|
|
|
645 |
'Europe/Kiev' => 'Europe/Kyiv',
|
|
|
646 |
'Europe/Nicosia' => 'Asia/Nicosia',
|
|
|
647 |
'Europe/Tiraspol' => 'Europe/Chisinau',
|
|
|
648 |
'Pacific/Enderbury' => 'Pacific/Kanton',
|
|
|
649 |
'Pacific/Johnston' => 'Pacific/Honolulu',
|
|
|
650 |
'Pacific/Ponape' => 'Pacific/Pohnpei',
|
|
|
651 |
'Pacific/Samoa' => 'Pacific/Pago_Pago',
|
|
|
652 |
'Pacific/Truk' => 'Pacific/Chuuk',
|
|
|
653 |
'Pacific/Yap' => 'Pacific/Chuuk',
|
|
|
654 |
);
|
|
|
655 |
|
|
|
656 |
// Legacy GMT fallback.
|
|
|
657 |
for ($i = -12; $i <= 14; $i++) {
|
|
|
658 |
$off = abs($i);
|
|
|
659 |
if ($i < 0) {
|
|
|
660 |
$mapto = 'Etc/GMT+' . $off;
|
|
|
661 |
$utc = 'UTC-' . $off;
|
|
|
662 |
$gmt = 'GMT-' . $off;
|
|
|
663 |
} else if ($i > 0) {
|
|
|
664 |
$mapto = 'Etc/GMT-' . $off;
|
|
|
665 |
$utc = 'UTC+' . $off;
|
|
|
666 |
$gmt = 'GMT+' . $off;
|
|
|
667 |
} else {
|
|
|
668 |
$mapto = 'Etc/GMT';
|
|
|
669 |
$utc = 'UTC';
|
|
|
670 |
$gmt = 'GMT';
|
|
|
671 |
}
|
|
|
672 |
if (isset(self::$bczones[$mapto])) {
|
|
|
673 |
self::$badzones[$i . ''] = $mapto;
|
|
|
674 |
self::$badzones[$i . '.0'] = $mapto;
|
|
|
675 |
self::$badzones[$utc] = $mapto;
|
|
|
676 |
self::$badzones[$gmt] = $mapto;
|
|
|
677 |
}
|
|
|
678 |
}
|
|
|
679 |
|
|
|
680 |
// Legacy Moodle half an hour offsets - pick any city nearby, ideally without DST.
|
|
|
681 |
self::$badzones['4.5'] = 'Asia/Kabul';
|
|
|
682 |
self::$badzones['5.5'] = 'Asia/Kolkata';
|
|
|
683 |
self::$badzones['6.5'] = 'Asia/Rangoon';
|
|
|
684 |
self::$badzones['9.5'] = 'Australia/Darwin';
|
|
|
685 |
|
|
|
686 |
// Remove bad zones that are elsewhere.
|
|
|
687 |
foreach (self::$bczones as $zone => $unused) {
|
|
|
688 |
if (isset(self::$badzones[$zone])) {
|
|
|
689 |
unset(self::$badzones[$zone]);
|
|
|
690 |
}
|
|
|
691 |
}
|
|
|
692 |
foreach (self::$goodzones as $zone => $unused) {
|
|
|
693 |
if (isset(self::$badzones[$zone])) {
|
|
|
694 |
unset(self::$badzones[$zone]);
|
|
|
695 |
}
|
|
|
696 |
}
|
|
|
697 |
}
|
|
|
698 |
|
|
|
699 |
/**
|
|
|
700 |
* Locale-formatted strftime using IntlDateFormatter (PHP 8.1 compatible)
|
|
|
701 |
* This provides a cross-platform alternative to strftime() for when it will be removed from PHP.
|
|
|
702 |
* Note that output can be slightly different between libc sprintf and this function as it is using ICU.
|
|
|
703 |
*
|
|
|
704 |
* From:
|
|
|
705 |
* https://github.com/alphp/strftime
|
|
|
706 |
*
|
|
|
707 |
* @param string $format Date format
|
|
|
708 |
* @param int|string|DateTime $timestamp Timestamp
|
|
|
709 |
* @param string|null $locale
|
|
|
710 |
* @return string
|
|
|
711 |
* @author BohwaZ <https://bohwaz.net/>
|
|
|
712 |
*/
|
|
|
713 |
public static function strftime(string $format, $timestamp = null, ?string $locale = null): string {
|
|
|
714 |
// Moodle-specific modification. For the IntlDateFormatter we need to use unix-style locale
|
|
|
715 |
// from the string 'locale' even for Windows, so we can neither use moodle_getlocale().
|
|
|
716 |
// nor rely on the setlocale() use below. We also ignore $CFG->locale because it can use
|
|
|
717 |
// Windows format.
|
|
|
718 |
$locale = $locale ?: get_string('locale', 'langconfig');
|
|
|
719 |
|
|
|
720 |
// The following code is taken from https://github.com/alphp/strftime.
|
|
|
721 |
// phpcs:disable
|
|
|
722 |
if (!($timestamp instanceof DateTimeInterface)) {
|
|
|
723 |
$timestamp = is_numeric($timestamp) ? '@' . $timestamp : (string) $timestamp;
|
|
|
724 |
|
|
|
725 |
try {
|
|
|
726 |
$timestamp = new DateTime($timestamp);
|
|
|
727 |
} catch (Exception $e) {
|
|
|
728 |
throw new InvalidArgumentException('$timestamp argument is neither a valid UNIX timestamp, a valid date-time string or a DateTime object.', 0, $e);
|
|
|
729 |
}
|
|
|
730 |
}
|
|
|
731 |
|
|
|
732 |
$timestamp->setTimezone(new DateTimeZone(date_default_timezone_get()));
|
|
|
733 |
|
|
|
734 |
if (empty($locale)) {
|
|
|
735 |
// get current locale
|
|
|
736 |
$locale = setlocale(LC_TIME, '0');
|
|
|
737 |
}
|
|
|
738 |
// remove trailing part not supported by ext-intl locale
|
|
|
739 |
$locale = preg_replace('/[^\w-].*$/', '', $locale);
|
|
|
740 |
|
|
|
741 |
$intl_formats = [
|
|
|
742 |
'%a' => 'EEE', // An abbreviated textual representation of the day Sun through Sat
|
|
|
743 |
'%A' => 'EEEE', // A full textual representation of the day Sunday through Saturday
|
|
|
744 |
'%b' => 'MMM', // Abbreviated month name, based on the locale Jan through Dec
|
|
|
745 |
'%B' => 'MMMM', // Full month name, based on the locale January through December
|
|
|
746 |
'%h' => 'MMM', // Abbreviated month name, based on the locale (an alias of %b) Jan through Dec
|
|
|
747 |
];
|
|
|
748 |
|
|
|
749 |
$intl_formatter = function (DateTimeInterface $timestamp, string $format) use ($intl_formats, $locale) {
|
|
|
750 |
|
|
|
751 |
// Map IANA timezone DB names (used by PHP) to those used internally by the "intl" extension. The extension uses its
|
|
|
752 |
// own data based on ICU timezones, which may not necessarily be in-sync with IANA depending on the version installed
|
|
|
753 |
// on the local system. See: https://unicode-org.github.io/icu/userguide/datetime/timezone/#updating-the-time-zone-data
|
|
|
754 |
$tz = $timestamp->getTimezone();
|
|
|
755 |
$intltz = IntlTimeZone::fromDateTimeZone($tz);
|
|
|
756 |
if ($intltz === null) {
|
|
|
757 |
// Where intl doesn't know about a recent timezone, map it to an equivalent existing zone.
|
|
|
758 |
$intltzname = strtr($tz->getName(), [
|
|
|
759 |
'America/Ciudad_Juarez' => 'America/Denver',
|
|
|
760 |
'America/Nuuk' => 'America/Godthab',
|
|
|
761 |
'Europe/Kyiv' => 'Europe/Kiev',
|
|
|
762 |
'Pacific/Kanton' => 'Pacific/Enderbury',
|
|
|
763 |
]);
|
|
|
764 |
$intltz = IntlTimeZone::createTimeZone($intltzname);
|
|
|
765 |
}
|
|
|
766 |
|
|
|
767 |
$date_type = IntlDateFormatter::FULL;
|
|
|
768 |
$time_type = IntlDateFormatter::FULL;
|
|
|
769 |
$pattern = '';
|
|
|
770 |
|
|
|
771 |
switch ($format) {
|
|
|
772 |
// %c = Preferred date and time stamp based on locale
|
|
|
773 |
// Example: Tue Feb 5 00:45:10 2009 for February 5, 2009 at 12:45:10 AM
|
|
|
774 |
case '%c':
|
|
|
775 |
$date_type = IntlDateFormatter::LONG;
|
|
|
776 |
$time_type = IntlDateFormatter::SHORT;
|
|
|
777 |
break;
|
|
|
778 |
|
|
|
779 |
// %x = Preferred date representation based on locale, without the time
|
|
|
780 |
// Example: 02/05/09 for February 5, 2009
|
|
|
781 |
case '%x':
|
|
|
782 |
$date_type = IntlDateFormatter::SHORT;
|
|
|
783 |
$time_type = IntlDateFormatter::NONE;
|
|
|
784 |
break;
|
|
|
785 |
|
|
|
786 |
// Localized time format
|
|
|
787 |
case '%X':
|
|
|
788 |
$date_type = IntlDateFormatter::NONE;
|
|
|
789 |
$time_type = IntlDateFormatter::MEDIUM;
|
|
|
790 |
break;
|
|
|
791 |
|
|
|
792 |
default:
|
|
|
793 |
$pattern = $intl_formats[$format];
|
|
|
794 |
}
|
|
|
795 |
|
|
|
796 |
// In October 1582, the Gregorian calendar replaced the Julian in much of Europe, and
|
|
|
797 |
// the 4th October was followed by the 15th October.
|
|
|
798 |
// ICU (including IntlDateFormattter) interprets and formats dates based on this cutover.
|
|
|
799 |
// Posix (including strftime) and timelib (including DateTimeImmutable) instead use
|
|
|
800 |
// a "proleptic Gregorian calendar" - they pretend the Gregorian calendar has existed forever.
|
|
|
801 |
// This leads to the same instants in time, as expressed in Unix time, having different representations
|
|
|
802 |
// in formatted strings.
|
|
|
803 |
// To adjust for this, a custom calendar can be supplied with a cutover date arbitrarily far in the past.
|
|
|
804 |
$calendar = IntlGregorianCalendar::createInstance($intltz);
|
|
|
805 |
$calendar->setGregorianChange(PHP_INT_MIN);
|
|
|
806 |
|
|
|
807 |
return (new IntlDateFormatter($locale, $date_type, $time_type, $intltz, $calendar, $pattern))->format($timestamp);
|
|
|
808 |
};
|
|
|
809 |
|
|
|
810 |
// Same order as https://www.php.net/manual/en/function.strftime.php
|
|
|
811 |
$translation_table = [
|
|
|
812 |
// Day
|
|
|
813 |
'%a' => $intl_formatter,
|
|
|
814 |
'%A' => $intl_formatter,
|
|
|
815 |
'%d' => 'd',
|
|
|
816 |
'%e' => function ($timestamp) {
|
|
|
817 |
return sprintf('% 2u', $timestamp->format('j'));
|
|
|
818 |
},
|
|
|
819 |
'%j' => function ($timestamp) {
|
|
|
820 |
// Day number in year, 001 to 366
|
|
|
821 |
return sprintf('%03d', $timestamp->format('z')+1);
|
|
|
822 |
},
|
|
|
823 |
'%u' => 'N',
|
|
|
824 |
'%w' => 'w',
|
|
|
825 |
|
|
|
826 |
// Week
|
|
|
827 |
'%U' => function ($timestamp) {
|
|
|
828 |
// Number of weeks between date and first Sunday of year
|
|
|
829 |
$day = new DateTime(sprintf('%d-01 Sunday', $timestamp->format('Y')));
|
|
|
830 |
return sprintf('%02u', 1 + ($timestamp->format('z') - $day->format('z')) / 7);
|
|
|
831 |
},
|
|
|
832 |
'%V' => 'W',
|
|
|
833 |
'%W' => function ($timestamp) {
|
|
|
834 |
// Number of weeks between date and first Monday of year
|
|
|
835 |
$day = new DateTime(sprintf('%d-01 Monday', $timestamp->format('Y')));
|
|
|
836 |
return sprintf('%02u', 1 + ($timestamp->format('z') - $day->format('z')) / 7);
|
|
|
837 |
},
|
|
|
838 |
|
|
|
839 |
// Month
|
|
|
840 |
'%b' => $intl_formatter,
|
|
|
841 |
'%B' => $intl_formatter,
|
|
|
842 |
'%h' => $intl_formatter,
|
|
|
843 |
'%m' => 'm',
|
|
|
844 |
|
|
|
845 |
// Year
|
|
|
846 |
'%C' => function ($timestamp) {
|
|
|
847 |
// Century (-1): 19 for 20th century
|
|
|
848 |
return floor($timestamp->format('Y') / 100);
|
|
|
849 |
},
|
|
|
850 |
'%g' => function ($timestamp) {
|
|
|
851 |
return substr($timestamp->format('o'), -2);
|
|
|
852 |
},
|
|
|
853 |
'%G' => 'o',
|
|
|
854 |
'%y' => 'y',
|
|
|
855 |
'%Y' => 'Y',
|
|
|
856 |
|
|
|
857 |
// Time
|
|
|
858 |
'%H' => 'H',
|
|
|
859 |
'%k' => function ($timestamp) {
|
|
|
860 |
return sprintf('% 2u', $timestamp->format('G'));
|
|
|
861 |
},
|
|
|
862 |
'%I' => 'h',
|
|
|
863 |
'%l' => function ($timestamp) {
|
|
|
864 |
return sprintf('% 2u', $timestamp->format('g'));
|
|
|
865 |
},
|
|
|
866 |
'%M' => 'i',
|
|
|
867 |
'%p' => 'A', // AM PM (this is reversed on purpose!)
|
|
|
868 |
'%P' => 'a', // am pm
|
|
|
869 |
'%r' => 'h:i:s A', // %I:%M:%S %p
|
|
|
870 |
'%R' => 'H:i', // %H:%M
|
|
|
871 |
'%S' => 's',
|
|
|
872 |
'%T' => 'H:i:s', // %H:%M:%S
|
|
|
873 |
'%X' => $intl_formatter, // Preferred time representation based on locale, without the date
|
|
|
874 |
|
|
|
875 |
// Timezone
|
|
|
876 |
'%z' => 'O',
|
|
|
877 |
'%Z' => 'T',
|
|
|
878 |
|
|
|
879 |
// Time and Date Stamps
|
|
|
880 |
'%c' => $intl_formatter,
|
|
|
881 |
'%D' => 'm/d/Y',
|
|
|
882 |
'%F' => 'Y-m-d',
|
|
|
883 |
'%s' => 'U',
|
|
|
884 |
'%x' => $intl_formatter,
|
|
|
885 |
];
|
|
|
886 |
|
|
|
887 |
$out = preg_replace_callback('/(?<!%)%([_#-]?)([a-zA-Z])/', function ($match) use ($translation_table, $timestamp) {
|
|
|
888 |
$prefix = $match[1];
|
|
|
889 |
$char = $match[2];
|
|
|
890 |
$pattern = '%'.$char;
|
|
|
891 |
if ($pattern == '%n') {
|
|
|
892 |
return "\n";
|
|
|
893 |
} elseif ($pattern == '%t') {
|
|
|
894 |
return "\t";
|
|
|
895 |
}
|
|
|
896 |
|
|
|
897 |
if (!isset($translation_table[$pattern])) {
|
|
|
898 |
throw new InvalidArgumentException(sprintf('Format "%s" is unknown in time format', $pattern));
|
|
|
899 |
}
|
|
|
900 |
|
|
|
901 |
$replace = $translation_table[$pattern];
|
|
|
902 |
|
|
|
903 |
if (is_string($replace)) {
|
|
|
904 |
$result = $timestamp->format($replace);
|
|
|
905 |
} else {
|
|
|
906 |
$result = $replace($timestamp, $pattern);
|
|
|
907 |
}
|
|
|
908 |
|
|
|
909 |
switch ($prefix) {
|
|
|
910 |
case '_':
|
|
|
911 |
// replace leading zeros with spaces but keep last char if also zero
|
|
|
912 |
return preg_replace('/\G0(?=.)/', ' ', $result);
|
|
|
913 |
case '#':
|
|
|
914 |
case '-':
|
|
|
915 |
// remove leading zeros but keep last char if also zero
|
|
|
916 |
return preg_replace('/^0+(?=.)/', '', $result);
|
|
|
917 |
}
|
|
|
918 |
|
|
|
919 |
return $result;
|
|
|
920 |
}, $format);
|
|
|
921 |
|
|
|
922 |
$out = str_replace('%%', '%', $out);
|
|
|
923 |
return $out;
|
|
|
924 |
// phpcs:enable
|
|
|
925 |
}
|
|
|
926 |
}
|