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DateTime.php
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<?php
declare(strict_types=1);
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
* @link https://cakephp.org CakePHP(tm) Project
* @since 3.2.0
* @license https://opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\I18n;
use Cake\Chronos\Chronos;
use Cake\Chronos\DifferenceFormatterInterface;
use Closure;
use DateTimeZone;
use IntlDateFormatter;
use InvalidArgumentException;
use JsonSerializable;
use Stringable;
/**
* Extends the built-in DateTime class to provide handy methods and locale-aware
* formatting helpers.
*
* @psalm-immutable
*/
class DateTime extends Chronos implements JsonSerializable, Stringable
{
use DateFormatTrait;
/**
* The default locale to be used for displaying formatted date strings.
*
* Use static::setDefaultLocale() and static::getDefaultLocale() instead.
*
* @var string|null
*/
protected static ?string $defaultLocale = null;
/**
* Whether lenient parsing is enabled for IntlDateFormatter.
*
* Defaults to true which is the default for IntlDateFormatter.
*
* @var bool
*/
protected static bool $lenientParsing = true;
/**
* The format to use when formatting a time using `Cake\I18n\DateTime::i18nFormat()`
* and `__toString`. This format is also used by `parseDateTime()`.
*
* The format should be either the formatting constants from IntlDateFormatter as
* described in (https://secure.php.net/manual/en/class.intldateformatter.php) or a pattern
* as specified in (https://unicode-org.github.io/icu-docs/apidoc/released/icu4c/classSimpleDateFormat.html#details)
*
* It is possible to provide an array of 2 constants. In this case, the first position
* will be used for formatting the date part of the object and the second position
* will be used to format the time part.
*
* @var array<int>|string|int
* @see \Cake\I18n\DateTime::i18nFormat()
*/
protected static array|string|int $_toStringFormat = [IntlDateFormatter::SHORT, IntlDateFormatter::SHORT];
/**
* The format to use when converting this object to JSON.
*
* The format should be either the formatting constants from IntlDateFormatter as
* described in (https://secure.php.net/manual/en/class.intldateformatter.php) or a pattern
* as specified in (https://unicode-org.github.io/icu-docs/apidoc/released/icu4c/classSimpleDateFormat.html#details)
*
* It is possible to provide an array of 2 constants. In this case, the first position
* will be used for formatting the date part of the object and the second position
* will be used to format the time part.
*
* @var \Closure|array<int>|string|int
* @see \Cake\I18n\DateTime::i18nFormat()
*/
protected static Closure|array|string|int $_jsonEncodeFormat = "yyyy-MM-dd'T'HH':'mm':'ssxxx";
/**
* The format to use when formatting a time using `Cake\I18n\DateTime::nice()`
*
* The format should be either the formatting constants from IntlDateFormatter as
* described in (https://secure.php.net/manual/en/class.intldateformatter.php) or a pattern
* as specified in (https://unicode-org.github.io/icu-docs/apidoc/released/icu4c/classSimpleDateFormat.html#details)
*
* It is possible to provide an array of 2 constants. In this case, the first position
* will be used for formatting the date part of the object and the second position
* will be used to format the time part.
*
* @var array<int>|string|int
* @see \Cake\I18n\DateTime::nice()
*/
public static array|string|int $niceFormat = [IntlDateFormatter::MEDIUM, IntlDateFormatter::SHORT];
/**
* The format to use when formatting a time using `Cake\I18n\DateTime::timeAgoInWords()`
* and the difference is more than `Cake\I18n\DateTime::$wordEnd`
*
* @var array<int>|string|int
* @see \Cake\I18n\DateTime::timeAgoInWords()
*/
public static array|string|int $wordFormat = [IntlDateFormatter::SHORT, IntlDateFormatter::NONE];
/**
* The format to use when formatting a time using `DateTime::timeAgoInWords()`
* and the difference is less than `DateTime::$wordEnd`
*
* @var array<string>
* @see \Cake\I18n\DateTime::timeAgoInWords()
*/
public static array $wordAccuracy = [
'year' => 'day',
'month' => 'day',
'week' => 'day',
'day' => 'hour',
'hour' => 'minute',
'minute' => 'minute',
'second' => 'second',
];
/**
* The end of relative time telling
*
* @var string
* @see \Cake\I18n\DateTime::timeAgoInWords()
*/
public static string $wordEnd = '+1 month';
/**
* serialise the value as a Unix Timestamp
*
* @var string
*/
public const UNIX_TIMESTAMP_FORMAT = 'unixTimestampFormat';
/**
* Gets the default locale.
*
* @return string|null The default locale string to be used or null.
*/
public static function getDefaultLocale(): ?string
{
return static::$defaultLocale;
}
/**
* Sets the default locale.
*
* Set to null to use IntlDateFormatter default.
*
* @param string|null $locale The default locale string to be used.
* @return void
*/
public static function setDefaultLocale(?string $locale = null): void
{
static::$defaultLocale = $locale;
}
/**
* Gets whether locale format parsing is set to lenient.
*
* @return bool
*/
public static function lenientParsingEnabled(): bool
{
return static::$lenientParsing;
}
/**
* Enables lenient parsing for locale formats.
*
* @return void
*/
public static function enableLenientParsing(): void
{
static::$lenientParsing = true;
}
/**
* Enables lenient parsing for locale formats.
*
* @return void
*/
public static function disableLenientParsing(): void
{
static::$lenientParsing = false;
}
/**
* Sets the default format used when type converting instances of this type to string
*
* The format should be either the formatting constants from IntlDateFormatter as
* described in (https://secure.php.net/manual/en/class.intldateformatter.php) or a pattern
* as specified in (https://unicode-org.github.io/icu-docs/apidoc/released/icu4c/classSimpleDateFormat.html#details)
*
* It is possible to provide an array of 2 constants. In this case, the first position
* will be used for formatting the date part of the object and the second position
* will be used to format the time part.
*
* @param array<int>|string|int $format Format.
* @return void
* @phpcsSuppress SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint
*/
public static function setToStringFormat($format): void
{
static::$_toStringFormat = $format;
}
/**
* Resets the format used to the default when converting an instance of this type to
* a string
*
* @return void
*/
public static function resetToStringFormat(): void
{
static::setToStringFormat([IntlDateFormatter::SHORT, IntlDateFormatter::SHORT]);
}
/**
* Sets the default format used when converting this object to JSON
*
* The format should be either the formatting constants from IntlDateFormatter as
* described in (https://secure.php.net/manual/en/class.intldateformatter.php) or a pattern
* as specified in (http://www.icu-project.org/apiref/icu4c/classSimpleDateFormat.html#details)
*
* It is possible to provide an array of 2 constants. In this case, the first position
* will be used for formatting the date part of the object and the second position
* will be used to format the time part.
*
* Alternatively, the format can provide a callback. In this case, the callback
* can receive this datetime object and return a formatted string.
*
* @see \Cake\I18n\DateTime::i18nFormat()
* @param \Closure|array|string|int $format Format.
* @return void
*/
public static function setJsonEncodeFormat(Closure|array|string|int $format): void
{
static::$_jsonEncodeFormat = $format;
}
/**
* Returns a new Time object after parsing the provided time string based on
* the passed or configured date time format. This method is locale dependent,
* Any string that is passed to this function will be interpreted as a locale
* dependent string.
*
* When no $format is provided, the `toString` format will be used.
*
* Unlike DateTime, the time zone of the returned instance is always converted
* to `$tz` (default time zone if null) even if the `$time` string specified a
* time zone. This is a limitation of IntlDateFormatter.
*
* If it was impossible to parse the provided time, null will be returned.
*
* Example:
*
* ```
* $time = DateTime::parseDateTime('10/13/2013 12:54am');
* $time = DateTime::parseDateTime('13 Oct, 2013 13:54', 'dd MMM, y H:mm');
* $time = DateTime::parseDateTime('10/10/2015', [IntlDateFormatter::SHORT, IntlDateFormatter::NONE]);
* ```
*
* @param string $time The time string to parse.
* @param array<int>|string|int|null $format Any format accepted by IntlDateFormatter.
* @param \DateTimeZone|string|null $tz The timezone for the instance
* @return static|null
*/
public static function parseDateTime(
string $time,
array|string|int|null $format = null,
DateTimeZone|string|null $tz = null
): ?static {
$format ??= static::$_toStringFormat;
$format = is_int($format) ? [$format, $format] : $format;
return static::_parseDateTime($time, $format, $tz);
}
/**
* Returns a new Time object after parsing the provided $date string based on
* the passed or configured date time format. This method is locale dependent,
* Any string that is passed to this function will be interpreted as a locale
* dependent string.
*
* When no $format is provided, the `wordFormat` format will be used.
*
* If it was impossible to parse the provided time, null will be returned.
*
* Example:
*
* ```
* $time = DateTime::parseDate('10/13/2013');
* $time = DateTime::parseDate('13 Oct, 2013', 'dd MMM, y');
* $time = DateTime::parseDate('13 Oct, 2013', IntlDateFormatter::SHORT);
* ```
*
* @param string $date The date string to parse.
* @param array|string|int|null $format Any format accepted by IntlDateFormatter.
* @return static|null
*/
public static function parseDate(string $date, array|string|int|null $format = null): ?static
{
$format ??= static::$wordFormat;
if (is_int($format)) {
$format = [$format, IntlDateFormatter::NONE];
}
return static::parseDateTime($date, $format);
}
/**
* Returns a new Time object after parsing the provided $time string based on
* the passed or configured date time format. This method is locale dependent,
* Any string that is passed to this function will be interpreted as a locale
* dependent string.
*
* When no $format is provided, the IntlDateFormatter::SHORT format will be used.
*
* If it was impossible to parse the provided time, null will be returned.
*
* Example:
*
* ```
* $time = DateTime::parseTime('11:23pm');
* ```
*
* @param string $time The time string to parse.
* @param array|string|int|null $format Any format accepted by IntlDateFormatter.
* @return static|null
*/
public static function parseTime(string $time, array|string|int|null $format = null): ?static
{
if (is_int($format)) {
$format = [IntlDateFormatter::NONE, $format];
}
$format = $format ?: [IntlDateFormatter::NONE, IntlDateFormatter::SHORT];
return static::parseDateTime($time, $format);
}
/**
* Get the difference formatter instance.
*
* @param \Cake\Chronos\DifferenceFormatterInterface|null $formatter Difference formatter
* @return \Cake\I18n\RelativeTimeFormatter
*/
public static function diffFormatter(?DifferenceFormatterInterface $formatter = null): RelativeTimeFormatter
{
if ($formatter) {
if (!$formatter instanceof RelativeTimeFormatter) {
throw new InvalidArgumentException('Formatter for I18n must extend RelativeTimeFormatter.');
}
return static::$diffFormatter = $formatter;
}
/** @var \Cake\I18n\RelativeTimeFormatter $formatter */
$formatter = static::$diffFormatter ??= new RelativeTimeFormatter();
return $formatter;
}
/**
* Returns a formatted string for this time object using the preferred format and
* language for the specified locale.
*
* It is possible to specify the desired format for the string to be displayed.
* You can either pass `IntlDateFormatter` constants as the first argument of this
* function, or pass a full ICU date formatting string as specified in the following
* resource: https://unicode-org.github.io/icu/userguide/format_parse/datetime/#datetime-format-syntax.
*
* Additional to `IntlDateFormatter` constants and date formatting string you can use
* DateTime::UNIX_TIMESTAMP_FORMAT to get a unix timestamp
*
* ### Examples
*
* ```
* $time = new DateTime('2014-04-20 22:10');
* $time->i18nFormat(); // outputs '4/20/14, 10:10 PM' for the en-US locale
* $time->i18nFormat(\IntlDateFormatter::FULL); // Use the full date and time format
* $time->i18nFormat([\IntlDateFormatter::FULL, \IntlDateFormatter::SHORT]); // Use full date but short time format
* $time->i18nFormat('yyyy-MM-dd HH:mm:ss'); // outputs '2014-04-20 22:10'
* $time->i18nFormat(DateTime::UNIX_TIMESTAMP_FORMAT); // outputs '1398031800'
* ```
*
* You can control the default format used through `DateTime::setToStringFormat()`.
*
* You can read about the available IntlDateFormatter constants at
* https://secure.php.net/manual/en/class.intldateformatter.php
*
* If you need to display the date in a different timezone than the one being used for
* this Time object without altering its internal state, you can pass a timezone
* string or object as the second parameter.
*
* Finally, should you need to use a different locale for displaying this time object,
* pass a locale string as the third parameter to this function.
*
* ### Examples
*
* ```
* $time = new Time('2014-04-20 22:10');
* $time->i18nFormat(null, null, 'de-DE');
* $time->i18nFormat(\IntlDateFormatter::FULL, 'Europe/Berlin', 'de-DE');
* ```
*
* You can control the default locale used through `DateTime::setDefaultLocale()`.
* If empty, the default will be taken from the `intl.default_locale` ini config.
*
* @param array<int>|string|int|null $format Format string.
* @param \DateTimeZone|string|null $timezone Timezone string or DateTimeZone object
* in which the date will be displayed. The timezone stored for this object will not
* be changed.
* @param string|null $locale The locale name in which the date should be displayed (e.g. pt-BR)
* @return string|int Formatted and translated date string
*/
public function i18nFormat(
array|string|int|null $format = null,
DateTimeZone|string|null $timezone = null,
?string $locale = null
): string|int {
if ($format === DateTime::UNIX_TIMESTAMP_FORMAT) {
return $this->getTimestamp();
}
$time = $this;
if ($timezone) {
$time = $time->setTimezone($timezone);
}
$format ??= static::$_toStringFormat;
$format = is_int($format) ? [$format, $format] : $format;
$locale = $locale ?: DateTime::getDefaultLocale();
return $this->_formatObject($time, $format, $locale);
}
/**
* Returns a nicely formatted date string for this object.
*
* The format to be used is stored in the static property `DateTime::$niceFormat`.
*
* @param \DateTimeZone|string|null $timezone Timezone string or DateTimeZone object
* in which the date will be displayed. The timezone stored for this object will not
* be changed.
* @param string|null $locale The locale name in which the date should be displayed (e.g. pt-BR)
* @return string Formatted date string
*/
public function nice(DateTimeZone|string|null $timezone = null, ?string $locale = null): string
{
return (string)$this->i18nFormat(static::$niceFormat, $timezone, $locale);
}
/**
* Returns either a relative or a formatted absolute date depending
* on the difference between the current time and this object.
*
* ### Options:
*
* - `from` => another Time object representing the "now" time
* - `format` => a fall back format if the relative time is longer than the duration specified by end
* - `accuracy` => Specifies how accurate the date should be described (array)
* - year => The format if years > 0 (default "day")
* - month => The format if months > 0 (default "day")
* - week => The format if weeks > 0 (default "day")
* - day => The format if weeks > 0 (default "hour")
* - hour => The format if hours > 0 (default "minute")
* - minute => The format if minutes > 0 (default "minute")
* - second => The format if seconds > 0 (default "second")
* - `end` => The end of relative time telling
* - `relativeString` => The printf compatible string when outputting relative time
* - `absoluteString` => The printf compatible string when outputting absolute time
* - `timezone` => The user timezone the timestamp should be formatted in.
*
* Relative dates look something like this:
*
* - 3 weeks, 4 days ago
* - 15 seconds ago
*
* Default date formatting is d/M/YY e.g: on 18/2/09. Formatting is done internally using
* `i18nFormat`, see the method for the valid formatting strings
*
* The returned string includes 'ago' or 'on' and assumes you'll properly add a word
* like 'Posted ' before the function output.
*
* NOTE: If the difference is one week or more, the lowest level of accuracy is day
*
* @param array<string, mixed> $options Array of options.
* @return string Relative time string.
*/
public function timeAgoInWords(array $options = []): string
{
return static::diffFormatter()->timeAgoInWords($this, $options);
}
/**
* Get list of timezone identifiers
*
* @param string|int|null $filter A regex to filter identifier
* Or one of DateTimeZone class constants
* @param string|null $country A two-letter ISO 3166-1 compatible country code.
* This option is only used when $filter is set to DateTimeZone::PER_COUNTRY
* @param array<string, mixed>|bool $options If true (default value) groups the identifiers list by primary region.
* Otherwise, an array containing `group`, `abbr`, `before`, and `after`
* keys. Setting `group` and `abbr` to true will group results and append
* timezone abbreviation in the display value. Set `before` and `after`
* to customize the abbreviation wrapper.
* @return array List of timezone identifiers
* @since 2.2
*/
public static function listTimezones(
string|int|null $filter = null,
?string $country = null,
array|bool $options = []
): array {
if (is_bool($options)) {
$options = [
'group' => $options,
];
}
$defaults = [
'group' => true,
'abbr' => false,
'before' => ' - ',
'after' => null,
];
$options += $defaults;
$group = $options['group'];
$regex = null;
if (is_string($filter)) {
$regex = $filter;
$filter = null;
}
$filter ??= DateTimeZone::ALL;
$identifiers = DateTimeZone::listIdentifiers($filter, (string)$country) ?: [];
if ($regex) {
foreach ($identifiers as $key => $tz) {
if (!preg_match($regex, $tz)) {
unset($identifiers[$key]);
}
}
}
if ($group) {
$groupedIdentifiers = [];
$now = time();
$before = $options['before'];
$after = $options['after'];
foreach ($identifiers as $tz) {
$abbr = '';
if ($options['abbr']) {
$dateTimeZone = new DateTimeZone($tz);
$trans = $dateTimeZone->getTransitions($now, $now);
$abbr = isset($trans[0]['abbr']) ?
$before . $trans[0]['abbr'] . $after :
'';
}
$item = explode('/', $tz, 2);
if (isset($item[1])) {
$groupedIdentifiers[$item[0]][$tz] = $item[1] . $abbr;
} else {
$groupedIdentifiers[$item[0]] = [$tz => $item[0] . $abbr];
}
}
return $groupedIdentifiers;
}
return array_combine($identifiers, $identifiers);
}
/**
* Returns a string that should be serialized when converting this object to JSON
*
* @return string|int
*/
public function jsonSerialize(): mixed
{
if (static::$_jsonEncodeFormat instanceof Closure) {
return call_user_func(static::$_jsonEncodeFormat, $this);
}
return $this->i18nFormat(static::$_jsonEncodeFormat);
}
/**
* @inheritDoc
*/
public function __toString(): string
{
return (string)$this->i18nFormat();
}
}
// phpcs:disable
class_alias('Cake\I18n\DateTime', 'Cake\I18n\FrozenTime');
// phpcs:enable