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<?php
/**
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @license http://www.opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Chronos;
use DateTime;
use DateTimeZone;
/**
* A mutable date object that converts all time components into 00:00:00.
*
* This class is useful when you want to represent a calendar date and ignore times.
* This means that timezone changes take no effect as a calendar date exists in all timezones
* in each respective date.
*
* @property-read int $year
* @property-read int $yearIso
* @property-read int $month
* @property-read int $day
* @property-read int $hour
* @property-read int $minute
* @property-read int $second
* @property-read int $timestamp seconds since the Unix Epoch
* @property-read DateTimeZone $timezone the current timezone
* @property-read DateTimeZone $tz alias of timezone
* @property-read int $micro
* @property-read int $dayOfWeek 1 (for Monday) through 7 (for Sunday)
* @property-read int $dayOfYear 0 through 365
* @property-read int $weekOfMonth 1 through 5
* @property-read int $weekOfYear ISO-8601 week number of year, weeks starting on Monday
* @property-read int $daysInMonth number of days in the given month
* @property-read int $age does a diffInYears() with default parameters
* @property-read int $quarter the quarter of this instance, 1 - 4
* @property-read int $offset the timezone offset in seconds from UTC
* @property-read int $offsetHours the timezone offset in hours from UTC
* @property-read bool $dst daylight savings time indicator, true if DST, false otherwise
* @property-read bool $local checks if the timezone is local, true if local, false otherwise
* @property-read bool $utc checks if the timezone is UTC, true if UTC, false otherwise
* @property-read string $timezoneName
* @property-read string $tzName
*/
class MutableDate extends DateTime implements ChronosInterface
{
use Traits\ComparisonTrait;
use Traits\DifferenceTrait;
use Traits\FactoryTrait;
use Traits\FormattingTrait;
use Traits\FrozenTimeTrait;
use Traits\MagicPropertyTrait;
use Traits\ModifierTrait;
use Traits\TestingAidTrait;
/**
* Format to use for __toString method when type juggling occurs.
*
* @var string
*/
protected static $toStringFormat = 'Y-m-d';
/**
* Create a new mutable Date instance.
*
* Please see the testing aids section (specifically static::setTestNow())
* for more on the possibility of this constructor returning a test instance.
*
* Date instances lack time components, however due to limitations in PHP's
* internal Datetime object the time will always be set to 00:00:00, and the
* timezone will always be UTC. Normalizing the timezone allows for
* subtraction/addition to have deterministic results.
*
* @param string|null $time Fixed or relative time
*/
public function __construct($time = 'now')
{
$tz = new DateTimeZone('UTC');
if (static::$testNow === null) {
$time = $this->stripTime($time);
parent::__construct($time, $tz);
return;
}
$relative = static::hasRelativeKeywords($time);
if (!empty($time) && $time !== 'now' && !$relative) {
$time = $this->stripTime($time);
parent::__construct($time, $tz);
return;
}
$testInstance = clone static::getTestNow();
if ($relative) {
$testInstance = $testInstance->modify($time);
}
if ($tz !== $testInstance->getTimezone()) {
$testInstance = $testInstance->setTimezone($tz === null ? date_default_timezone_get() : $tz);
}
$time = $testInstance->format('Y-m-d 00:00:00');
parent::__construct($time, $tz);
}
/**
* Create a new immutable instance from current mutable instance.
*
* @return \Cake\Chronos\Date
*/
public function toImmutable()
{
return Date::instance($this);
}
/**
* Return properties for debugging.
*
* @return array
*/
public function __debugInfo()
{
$properties = [
'date' => $this->format('Y-m-d'),
'hasFixedNow' => isset(self::$testNow)
];
return $properties;
}
}