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<?php
/*
* This file is part of the Carbon package.
*
* (c) Brian Nesbitt <brian@nesbot.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Carbon;
use Closure;
use DateTime;
use DateTimeZone;
use DatePeriod;
use InvalidArgumentException;
use Symfony\Component\Translation\Translator;
use Symfony\Component\Translation\TranslatorInterface;
use Symfony\Component\Translation\Loader\ArrayLoader;
/**
* A simple API extension for DateTime
*
* @property int $year
* @property int $yearIso
* @property int $month
* @property int $day
* @property int $hour
* @property int $minute
* @property int $second
* @property int $timestamp seconds since the Unix Epoch
* @property DateTimeZone $timezone the current timezone
* @property DateTimeZone $tz alias of timezone
* @property-read integer $micro
* @property-read integer $dayOfWeek 0 (for Sunday) through 6 (for Saturday)
* @property-read integer $dayOfYear 0 through 365
* @property-read integer $weekOfMonth 1 through 5
* @property-read integer $weekOfYear ISO-8601 week number of year, weeks starting on Monday
* @property-read integer $daysInMonth number of days in the given month
* @property-read integer $age does a diffInYears() with default parameters
* @property-read integer $quarter the quarter of this instance, 1 - 4
* @property-read integer $offset the timezone offset in seconds from UTC
* @property-read integer $offsetHours the timezone offset in hours from UTC
* @property-read boolean $dst daylight savings time indicator, true if DST, false otherwise
* @property-read boolean $local checks if the timezone is local, true if local, false otherwise
* @property-read boolean $utc checks if the timezone is UTC, true if UTC, false otherwise
* @property-read string $timezoneName
* @property-read string $tzName
*/
class Carbon extends DateTime
{
/**
* The day constants
*/
const SUNDAY = 0;
const MONDAY = 1;
const TUESDAY = 2;
const WEDNESDAY = 3;
const THURSDAY = 4;
const FRIDAY = 5;
const SATURDAY = 6;
/**
* Names of days of the week.
*
* @var array
*/
protected static $days = array(
self::SUNDAY => 'Sunday',
self::MONDAY => 'Monday',
self::TUESDAY => 'Tuesday',
self::WEDNESDAY => 'Wednesday',
self::THURSDAY => 'Thursday',
self::FRIDAY => 'Friday',
self::SATURDAY => 'Saturday',
);
/**
* Terms used to detect if a time passed is a relative date for testing purposes
*
* @var array
*/
protected static $relativeKeywords = array(
'this',
'next',
'last',
'tomorrow',
'yesterday',
'+',
'-',
'first',
'last',
'ago',
);
/**
* Number of X in Y
*/
const YEARS_PER_CENTURY = 100;
const YEARS_PER_DECADE = 10;
const MONTHS_PER_YEAR = 12;
const WEEKS_PER_YEAR = 52;
const DAYS_PER_WEEK = 7;
const HOURS_PER_DAY = 24;
const MINUTES_PER_HOUR = 60;
const SECONDS_PER_MINUTE = 60;
/**
* Default format to use for __toString method when type juggling occurs.
*
* @var string
*/
const DEFAULT_TO_STRING_FORMAT = 'Y-m-d H:i:s';
/**
* Format to use for __toString method when type juggling occurs.
*
* @var string
*/
protected static $toStringFormat = self::DEFAULT_TO_STRING_FORMAT;
/**
* First day of week
*
* @var int
*/
protected static $weekStartsAt = self::MONDAY;
/**
* Last day of week
*
* @var int
*/
protected static $weekEndsAt = self::SUNDAY;
/**
* Days of weekend
*
* @var array
*/
protected static $weekendDays = array(self::SATURDAY, self::SUNDAY);
/**
* A test Carbon instance to be returned when now instances are created
*
* @var Carbon
*/
protected static $testNow;
/**
* A translator to ... er ... translate stuff
*
* @var TranslatorInterface
*/
protected static $translator;
/**
* Creates a DateTimeZone from a string or a DateTimeZone
*
* @param DateTimeZone|string|null $object
*
* @throws InvalidArgumentException
*
* @return DateTimeZone
*/
protected static function safeCreateDateTimeZone($object)
{
if ($object === null) {
// Don't return null... avoid Bug #52063 in PHP <5.3.6
return new DateTimeZone(date_default_timezone_get());
}
if ($object instanceof DateTimeZone) {
return $object;
}
$tz = @timezone_open((string) $object);
if ($tz === false) {
throw new InvalidArgumentException('Unknown or bad timezone ('.$object.')');
}
return $tz;
}
///////////////////////////////////////////////////////////////////
//////////////////////////// CONSTRUCTORS /////////////////////////
///////////////////////////////////////////////////////////////////
/**
* Create a new Carbon instance.
*
* Please see the testing aids section (specifically static::setTestNow())
* for more on the possibility of this constructor returning a test instance.
*
* @param string|null $time
* @param DateTimeZone|string|null $tz
*/
public function __construct($time = null, $tz = null)
{
// If the class has a test now set and we are trying to create a now()
// instance then override as required
if (static::hasTestNow() && (empty($time) || $time === 'now' || static::hasRelativeKeywords($time))) {
$testInstance = clone static::getTestNow();
if (static::hasRelativeKeywords($time)) {
$testInstance->modify($time);
}
//shift the time according to the given time zone
if ($tz !== null && $tz !== static::getTestNow()->tz) {
$testInstance->setTimezone($tz);
} else {
$tz = $testInstance->tz;
}
$time = $testInstance->toDateTimeString();
}
parent::__construct($time, static::safeCreateDateTimeZone($tz));
}
/**
* Create a Carbon instance from a DateTime one
*
* @param DateTime $dt
*
* @return static
*/
public static function instance(DateTime $dt)
{
return new static($dt->format('Y-m-d H:i:s.u'), $dt->getTimeZone());
}
/**
* Create a carbon instance from a string. This is an alias for the
* constructor that allows better fluent syntax as it allows you to do
* Carbon::parse('Monday next week')->fn() rather than
* (new Carbon('Monday next week'))->fn()
*
* @param string|null $time
* @param DateTimeZone|string|null $tz
*
* @return static
*/
public static function parse($time = null, $tz = null)
{
return new static($time, $tz);
}
/**
* Get a Carbon instance for the current date and time
*
* @param DateTimeZone|string|null $tz
*
* @return static
*/
public static function now($tz = null)
{
return new static(null, $tz);
}
/**
* Create a Carbon instance for today
*
* @param DateTimeZone|string|null $tz
*
* @return static
*/
public static function today($tz = null)
{
return static::now($tz)->startOfDay();
}
/**
* Create a Carbon instance for tomorrow
*
* @param DateTimeZone|string|null $tz
*
* @return static
*/
public static function tomorrow($tz = null)
{
return static::today($tz)->addDay();
}
/**
* Create a Carbon instance for yesterday
*
* @param DateTimeZone|string|null $tz
*
* @return static
*/
public static function yesterday($tz = null)
{
return static::today($tz)->subDay();
}
/**
* Create a Carbon instance for the greatest supported date.
*
* @return Carbon
*/
public static function maxValue()
{
if (PHP_INT_SIZE === 4) {
// 32 bit (and additionally Windows 64 bit)
return static::createFromTimestamp(PHP_INT_MAX);
}
// 64 bit
return static::create(9999, 12, 31, 23, 59, 59);
}
/**
* Create a Carbon instance for the lowest supported date.
*
* @return Carbon
*/
public static function minValue()
{
if (PHP_INT_SIZE === 4) {
// 32 bit (and additionally Windows 64 bit)
return static::createFromTimestamp(~PHP_INT_MAX);
}
// 64 bit
return static::create(1, 1, 1, 0, 0, 0);
}
/**
* Create a new Carbon instance from a specific date and time.
*
* If any of $year, $month or $day are set to null their now() values
* will be used.
*
* If $hour is null it will be set to its now() value and the default values
* for $minute and $second will be their now() values.
* If $hour is not null then the default values for $minute and $second
* will be 0.
*
* @param int|null $year
* @param int|null $month
* @param int|null $day
* @param int|null $hour
* @param int|null $minute
* @param int|null $second
* @param DateTimeZone|string|null $tz
*
* @return static
*/
public static function create($year = null, $month = null, $day = null, $hour = null, $minute = null, $second = null, $tz = null)
{
$year = $year === null ? date('Y') : $year;
$month = $month === null ? date('n') : $month;
$day = $day === null ? date('j') : $day;
if ($hour === null) {
$hour = date('G');
$minute = $minute === null ? date('i') : $minute;
$second = $second === null ? date('s') : $second;
} else {
$minute = $minute === null ? 0 : $minute;
$second = $second === null ? 0 : $second;
}
return static::createFromFormat('Y-n-j G:i:s', sprintf('%s-%s-%s %s:%02s:%02s', $year, $month, $day, $hour, $minute, $second), $tz);
}
/**
* Create a Carbon instance from just a date. The time portion is set to now.
*
* @param int|null $year
* @param int|null $month
* @param int|null $day
* @param DateTimeZone|string|null $tz
*
* @return static
*/
public static function createFromDate($year = null, $month = null, $day = null, $tz = null)
{
return static::create($year, $month, $day, null, null, null, $tz);
}
/**
* Create a Carbon instance from just a time. The date portion is set to today.
*
* @param int|null $hour
* @param int|null $minute
* @param int|null $second
* @param DateTimeZone|string|null $tz
*
* @return static
*/
public static function createFromTime($hour = null, $minute = null, $second = null, $tz = null)
{
return static::create(null, null, null, $hour, $minute, $second, $tz);
}
/**
* Create a Carbon instance from a specific format
*
* @param string $format
* @param string $time
* @param DateTimeZone|string|null $tz
*
* @throws InvalidArgumentException
*
* @return static
*/
public static function createFromFormat($format, $time, $tz = null)
{
if ($tz !== null) {
$dt = parent::createFromFormat($format, $time, static::safeCreateDateTimeZone($tz));
} else {
$dt = parent::createFromFormat($format, $time);
}
if ($dt instanceof DateTime) {
return static::instance($dt);
}
$errors = static::getLastErrors();
throw new InvalidArgumentException(implode(PHP_EOL, $errors['errors']));
}
/**
* Create a Carbon instance from a timestamp
*
* @param int $timestamp
* @param DateTimeZone|string|null $tz
*
* @return static
*/
public static function createFromTimestamp($timestamp, $tz = null)
{
return static::now($tz)->setTimestamp($timestamp);
}
/**
* Create a Carbon instance from an UTC timestamp
*
* @param int $timestamp
*
* @return static
*/
public static function createFromTimestampUTC($timestamp)
{
return new static('@'.$timestamp);
}
/**
* Get a copy of the instance
*
* @return static
*/
public function copy()
{
return static::instance($this);
}
///////////////////////////////////////////////////////////////////
///////////////////////// GETTERS AND SETTERS /////////////////////
///////////////////////////////////////////////////////////////////
/**
* Get a part of the Carbon object
*
* @param string $name
*
* @throws InvalidArgumentException
*
* @return string|int|DateTimeZone
*/
public function __get($name)
{
switch (true) {
case array_key_exists($name, $formats = array(
'year' => 'Y',
'yearIso' => 'o',
'month' => 'n',
'day' => 'j',
'hour' => 'G',
'minute' => 'i',
'second' => 's',
'micro' => 'u',
'dayOfWeek' => 'w',
'dayOfYear' => 'z',
'weekOfYear' => 'W',
'daysInMonth' => 't',
'timestamp' => 'U',
)):
return (int) $this->format($formats[$name]);
case $name === 'weekOfMonth':
return (int) ceil($this->day / static::DAYS_PER_WEEK);
case $name === 'age':
return (int) $this->diffInYears();
case $name === 'quarter':
return (int) ceil($this->month / 3);
case $name === 'offset':
return $this->getOffset();
case $name === 'offsetHours':
return $this->getOffset() / static::SECONDS_PER_MINUTE / static::MINUTES_PER_HOUR;
case $name === 'dst':
return $this->format('I') === '1';
case $name === 'local':
return $this->offset === $this->copy()->setTimezone(date_default_timezone_get())->offset;
case $name === 'utc':
return $this->offset === 0;
case $name === 'timezone' || $name === 'tz':
return $this->getTimezone();
case $name === 'timezoneName' || $name === 'tzName':
return $this->getTimezone()->getName();
default:
throw new InvalidArgumentException(sprintf("Unknown getter '%s'", $name));
}
}
/**
* Check if an attribute exists on the object
*
* @param string $name
*
* @return bool
*/
public function __isset($name)
{
try {
$this->__get($name);
} catch (InvalidArgumentException $e) {
return false;
}
return true;
}
/**
* Set a part of the Carbon object
*
* @param string $name
* @param string|int|DateTimeZone $value
*
* @throws InvalidArgumentException
*/
public function __set($name, $value)
{
switch ($name) {
case 'year':
$this->setDate($value, $this->month, $this->day);
break;
case 'month':
$this->setDate($this->year, $value, $this->day);
break;
case 'day':
$this->setDate($this->year, $this->month, $value);
break;
case 'hour':
$this->setTime($value, $this->minute, $this->second);
break;
case 'minute':
$this->setTime($this->hour, $value, $this->second);
break;
case 'second':
$this->setTime($this->hour, $this->minute, $value);
break;
case 'timestamp':
parent::setTimestamp($value);
break;
case 'timezone':
case 'tz':
$this->setTimezone($value);
break;
default:
throw new InvalidArgumentException(sprintf("Unknown setter '%s'", $name));
}
}
/**
* Set the instance's year
*
* @param int $value
*
* @return static
*/
public function year($value)
{
$this->year = $value;
return $this;
}
/**
* Set the instance's month
*
* @param int $value
*
* @return static
*/
public function month($value)
{
$this->month = $value;
return $this;
}
/**
* Set the instance's day
*
* @param int $value
*
* @return static
*/
public function day($value)
{
$this->day = $value;
return $this;
}
/**
* Set the instance's hour
*
* @param int $value
*
* @return static
*/
public function hour($value)
{
$this->hour = $value;
return $this;
}
/**
* Set the instance's minute
*
* @param int $value
*
* @return static
*/
public function minute($value)
{
$this->minute = $value;
return $this;
}
/**
* Set the instance's second
*
* @param int $value
*
* @return static
*/
public function second($value)
{
$this->second = $value;
return $this;
}
/**
* Set the date and time all together
*
* @param int $year
* @param int $month
* @param int $day
* @param int $hour
* @param int $minute
* @param int $second
*
* @return static
*/
public function setDateTime($year, $month, $day, $hour, $minute, $second = 0)
{
return $this->setDate($year, $month, $day)->setTime($hour, $minute, $second);
}
/**
* Set the time by time string
*
* @param string $time
*
* @return static
*/
public function setTimeFromTimeString($time)
{
$time = explode(":", $time);
$hour = $time[0];
$minute = isset($time[1]) ? $time[1] : 0;
$second = isset($time[2]) ? $time[2] : 0;
return $this->setTime($hour, $minute, $second);
}
/**
* Set the instance's timestamp
*
* @param int $value
*
* @return static
*/
public function timestamp($value)
{
$this->timestamp = $value;
return $this;
}
/**
* Alias for setTimezone()
*
* @param DateTimeZone|string $value
*
* @return static
*/
public function timezone($value)
{
return $this->setTimezone($value);
}
/**
* Alias for setTimezone()
*
* @param DateTimeZone|string $value
*
* @return static
*/
public function tz($value)
{
return $this->setTimezone($value);
}
/**
* Set the instance's timezone from a string or object
*
* @param DateTimeZone|string $value
*
* @return static
*/
public function setTimezone($value)
{
parent::setTimezone(static::safeCreateDateTimeZone($value));
return $this;
}
///////////////////////////////////////////////////////////////////
/////////////////////// WEEK SPECIAL DAYS /////////////////////////
///////////////////////////////////////////////////////////////////
/**
* Get the first day of week
*
* @return int
*/
public static function getWeekStartsAt()
{
return static::$weekStartsAt;
}
/**
* Set the first day of week
*
* @param int
*/
public static function setWeekStartsAt($day)
{
static::$weekStartsAt = $day;
}
/**
* Get the last day of week
*
* @return int
*/
public static function getWeekEndsAt()
{
return static::$weekEndsAt;
}
/**
* Set the first day of week
*
* @param int
*/
public static function setWeekEndsAt($day)
{
static::$weekEndsAt = $day;
}
/**
* Get weekend days
*
* @return array
*/
public static function getWeekendDays()
{
return static::$weekendDays;
}
/**
* Set weekend days
*
* @param array
*/
public static function setWeekendDays($days)
{
static::$weekendDays = $days;
}
///////////////////////////////////////////////////////////////////
///////////////////////// TESTING AIDS ////////////////////////////
///////////////////////////////////////////////////////////////////
/**
* Set a Carbon instance (real or mock) to be returned when a "now"
* instance is created. The provided instance will be returned
* specifically under the following conditions:
* - A call to the static now() method, ex. Carbon::now()
* - When a null (or blank string) is passed to the constructor or parse(), ex. new Carbon(null)
* - When the string "now" is passed to the constructor or parse(), ex. new Carbon('now')
*
* Note the timezone parameter was left out of the examples above and
* has no affect as the mock value will be returned regardless of its value.
*
* To clear the test instance call this method using the default
* parameter of null.
*
* @param Carbon|null $testNow
*/
public static function setTestNow(Carbon $testNow = null)
{
static::$testNow = $testNow;
}
/**
* Get the Carbon instance (real or mock) to be returned when a "now"
* instance is created.
*
* @return static the current instance used for testing
*/
public static function getTestNow()
{
return static::$testNow;
}
/**
* Determine if there is a valid test instance set. A valid test instance
* is anything that is not null.
*
* @return bool true if there is a test instance, otherwise false
*/
public static function hasTestNow()
{
return static::getTestNow() !== null;
}
/**
* Determine if there is a relative keyword in the time string, this is to
* create dates relative to now for test instances. e.g.: next tuesday
*
* @param string $time
*
* @return bool true if there is a keyword, otherwise false
*/
public static function hasRelativeKeywords($time)
{
// skip common format with a '-' in it
if (preg_match('/[0-9]{4}-[0-9]{1,2}-[0-9]{1,2}/', $time) !== 1) {
foreach (static::$relativeKeywords as $keyword) {
if (stripos($time, $keyword) !== false) {
return true;
}
}
}
return false;
}
///////////////////////////////////////////////////////////////////
/////////////////////// LOCALIZATION //////////////////////////////
///////////////////////////////////////////////////////////////////
/**
* Intialize the translator instance if necessary.
*
* @return TranslatorInterface
*/
protected static function translator()
{
if (static::$translator === null) {
static::$translator = new Translator('en');
static::$translator->addLoader('array', new ArrayLoader());
static::setLocale('en');
}
return static::$translator;
}
/**
* Get the translator instance in use
*
* @return TranslatorInterface
*/
public static function getTranslator()
{
return static::translator();
}
/**
* Set the translator instance to use
*
* @param TranslatorInterface $translator
*/
public static function setTranslator(TranslatorInterface $translator)
{
static::$translator = $translator;
}
/**
* Get the current translator locale
*
* @return string
*/
public static function getLocale()
{
return static::translator()->getLocale();
}
/**
* Set the current translator locale
*
* @param string $locale
*/
public static function setLocale($locale)
{
static::translator()->setLocale($locale);
// Ensure the locale has been loaded.
static::translator()->addResource('array', require __DIR__.'/Lang/'.$locale.'.php', $locale);
}
///////////////////////////////////////////////////////////////////
/////////////////////// STRING FORMATTING /////////////////////////
///////////////////////////////////////////////////////////////////
/**
* Format the instance with the current locale. You can set the current
* locale using setlocale() http://php.net/setlocale.
*
* @param string $format
*
* @return string
*/
public function formatLocalized($format)
{
// Check for Windows to find and replace the %e
// modifier correctly
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
$format = preg_replace('#(?<!%)((?:%%)*)%e#', '\1%#d', $format);
}
return strftime($format, strtotime($this));
}
/**
* Reset the format used to the default when type juggling a Carbon instance to a string
*/
public static function resetToStringFormat()
{
static::setToStringFormat(static::DEFAULT_TO_STRING_FORMAT);
}
/**
* Set the default format used when type juggling a Carbon instance to a string
*
* @param string $format
*/
public static function setToStringFormat($format)
{
static::$toStringFormat = $format;
}
/**
* Format the instance as a string using the set format
*
* @return string
*/
public function __toString()
{
return $this->format(static::$toStringFormat);
}
/**
* Format the instance as date
*
* @return string
*/
public function toDateString()
{
return $this->format('Y-m-d');
}
/**
* Format the instance as a readable date
*
* @return string
*/
public function toFormattedDateString()
{
return $this->format('M j, Y');
}
/**
* Format the instance as time
*
* @return string
*/
public function toTimeString()
{
return $this->format('H:i:s');
}
/**
* Format the instance as date and time
*
* @return string
*/
public function toDateTimeString()
{
return $this->format('Y-m-d H:i:s');
}
/**
* Format the instance with day, date and time
*
* @return string
*/
public function toDayDateTimeString()
{
return $this->format('D, M j, Y g:i A');
}
/**
* Format the instance as ATOM
*
* @return string
*/
public function toAtomString()
{
return $this->format(static::ATOM);
}
/**
* Format the instance as COOKIE
*
* @return string
*/
public function toCookieString()
{
return $this->format(static::COOKIE);
}
/**
* Format the instance as ISO8601
*
* @return string
*/
public function toIso8601String()
{
return $this->format(static::ISO8601);
}
/**
* Format the instance as RFC822
*
* @return string
*/
public function toRfc822String()
{
return $this->format(static::RFC822);
}
/**
* Format the instance as RFC850
*
* @return string
*/
public function toRfc850String()
{
return $this->format(static::RFC850);
}
/**
* Format the instance as RFC1036
*
* @return string
*/
public function toRfc1036String()
{
return $this->format(static::RFC1036);
}
/**
* Format the instance as RFC1123
*
* @return string
*/
public function toRfc1123String()
{
return $this->format(static::RFC1123);
}
/**
* Format the instance as RFC2822
*
* @return string
*/
public function toRfc2822String()
{
return $this->format(static::RFC2822);
}
/**
* Format the instance as RFC3339
*
* @return string
*/
public function toRfc3339String()
{
return $this->format(static::RFC3339);
}
/**
* Format the instance as RSS
*
* @return string
*/
public function toRssString()
{
return $this->format(static::RSS);
}
/**
* Format the instance as W3C
*
* @return string
*/
public function toW3cString()
{
return $this->format(static::W3C);
}
///////////////////////////////////////////////////////////////////
////////////////////////// COMPARISONS ////////////////////////////
///////////////////////////////////////////////////////////////////
/**
* Determines if the instance is equal to another
*
* @param Carbon $dt
*
* @return bool
*/
public function eq(Carbon $dt)
{
return $this == $dt;
}
/**
* Determines if the instance is not equal to another
*
* @param Carbon $dt
*
* @return bool
*/
public function ne(Carbon $dt)
{
return !$this->eq($dt);
}
/**
* Determines if the instance is greater (after) than another
*
* @param Carbon $dt
*
* @return bool
*/
public function gt(Carbon $dt)
{
return $this > $dt;
}
/**
* Determines if the instance is greater (after) than or equal to another
*
* @param Carbon $dt
*
* @return bool
*/
public function gte(Carbon $dt)
{
return $this >= $dt;
}
/**
* Determines if the instance is less (before) than another
*
* @param Carbon $dt
*
* @return bool
*/
public function lt(Carbon $dt)
{
return $this < $dt;
}
/**
* Determines if the instance is less (before) or equal to another
*
* @param Carbon $dt
*
* @return bool
*/
public function lte(Carbon $dt)
{
return $this <= $dt;
}
/**
* Determines if the instance is between two others
*
* @param Carbon $dt1
* @param Carbon $dt2
* @param bool $equal Indicates if a > and < comparison should be used or <= or >=
*
* @return bool
*/
public function between(Carbon $dt1, Carbon $dt2, $equal = true)
{
if ($dt1->gt($dt2)) {
$temp = $dt1;
$dt1 = $dt2;
$dt2 = $temp;
}
if ($equal) {
return $this->gte($dt1) && $this->lte($dt2);
}
return $this->gt($dt1) && $this->lt($dt2);
}
/**
* Get the closest date from the instance.
*
* @param Carbon $dt1
* @param Carbon $dt2
*
* @return static
*/
public function closest(Carbon $dt1, Carbon $dt2)
{
return $this->diffInSeconds($dt1) < $this->diffInSeconds($dt2) ? $dt1 : $dt2;
}
/**
* Get the farthest date from the instance.
*
* @param Carbon $dt1
* @param Carbon $dt2
*
* @return static
*/
public function farthest(Carbon $dt1, Carbon $dt2)
{
return $this->diffInSeconds($dt1) > $this->diffInSeconds($dt2) ? $dt1 : $dt2;
}
/**
* Get the minimum instance between a given instance (default now) and the current instance.
*
* @param Carbon|null $dt
*
* @return static
*/
public function min(Carbon $dt = null)
{
$dt = $dt ?: static::now($this->tz);
return $this->lt($dt) ? $this : $dt;
}
/**
* Get the maximum instance between a given instance (default now) and the current instance.
*
* @param Carbon|null $dt
*
* @return static
*/
public function max(Carbon $dt = null)
{
$dt = $dt ?: static::now($this->tz);
return $this->gt($dt) ? $this : $dt;
}
/**
* Determines if the instance is a weekday
*
* @return bool
*/
public function isWeekday()
{
return !$this->isWeekend();
}
/**
* Determines if the instance is a weekend day
*
* @return bool
*/
public function isWeekend()
{
return in_array($this->dayOfWeek, self::$weekendDays);
}
/**
* Determines if the instance is yesterday
*
* @return bool
*/
public function isYesterday()
{
return $this->toDateString() === static::yesterday($this->tz)->toDateString();
}
/**
* Determines if the instance is today
*
* @return bool
*/
public function isToday()
{
return $this->toDateString() === static::now($this->tz)->toDateString();
}
/**
* Determines if the instance is tomorrow
*
* @return bool
*/
public function isTomorrow()
{
return $this->toDateString() === static::tomorrow($this->tz)->toDateString();
}
/**
* Determines if the instance is in the future, ie. greater (after) than now
*
* @return bool
*/
public function isFuture()
{
return $this->gt(static::now($this->tz));
}
/**
* Determines if the instance is in the past, ie. less (before) than now
*
* @return bool
*/
public function isPast()
{
return $this->lt(static::now($this->tz));
}
/**
* Determines if the instance is a leap year
*
* @return bool
*/
public function isLeapYear()
{
return $this->format('L') === '1';
}
/**
* Checks if the passed in date is the same day as the instance current day.
*
* @param Carbon $dt
*
* @return bool
*/
public function isSameDay(Carbon $dt)
{
return $this->toDateString() === $dt->toDateString();
}
/**
* Checks if this day is a Sunday.
*
* @return bool
*/
public function isSunday()
{
return $this->dayOfWeek === static::SUNDAY;
}
/**
* Checks if this day is a Monday.
*
* @return bool
*/
public function isMonday()
{
return $this->dayOfWeek === static::MONDAY;
}
/**
* Checks if this day is a Tuesday.
*
* @return bool
*/
public function isTuesday()
{
return $this->dayOfWeek === static::TUESDAY;
}
/**
* Checks if this day is a Wednesday.
*
* @return bool
*/
public function isWednesday()
{
return $this->dayOfWeek === static::WEDNESDAY;
}
/**
* Checks if this day is a Thursday.
*
* @return bool
*/
public function isThursday()
{
return $this->dayOfWeek === static::THURSDAY;
}
/**
* Checks if this day is a Friday.
*
* @return bool
*/
public function isFriday()
{
return $this->dayOfWeek === static::FRIDAY;
}
/**
* Checks if this day is a Saturday.
*
* @return bool
*/
public function isSaturday()
{
return $this->dayOfWeek === static::SATURDAY;
}
///////////////////////////////////////////////////////////////////
/////////////////// ADDITIONS AND SUBTRACTIONS ////////////////////
///////////////////////////////////////////////////////////////////
/**
* Add years to the instance. Positive $value travel forward while
* negative $value travel into the past.
*
* @param int $value
*
* @return static
*/
public function addYears($value)
{
return $this->modify((int) $value.' year');
}
/**
* Add a year to the instance
*
* @param int $value
*
* @return static
*/
public function addYear($value = 1)
{
return $this->addYears($value);
}
/**
* Remove a year from the instance
*
* @param int $value
*
* @return static
*/
public function subYear($value = 1)
{
return $this->subYears($value);
}
/**
* Remove years from the instance.
*
* @param int $value
*
* @return static
*/
public function subYears($value)
{
return $this->addYears(-1 * $value);
}
/**
* Add months to the instance. Positive $value travels forward while
* negative $value travels into the past.
*
* @param int $value
*
* @return static
*/
public function addMonths($value)
{
return $this->modify((int) $value.' month');
}
/**
* Add a month to the instance
*
* @param int $value
*
* @return static
*/
public function addMonth($value = 1)
{
return $this->addMonths($value);
}
/**
* Remove a month from the instance
*
* @param int $value
*
* @return static
*/
public function subMonth($value = 1)
{
return $this->subMonths($value);
}
/**
* Remove months from the instance
*
* @param int $value
*
* @return static
*/
public function subMonths($value)
{
return $this->addMonths(-1 * $value);
}
/**
* Add months without overflowing to the instance. Positive $value
* travels forward while negative $value travels into the past.
*
* @param int $value
*
* @return static
*/
public function addMonthsNoOverflow($value)
{
$date = $this->copy()->addMonths($value);
if ($date->day !== $this->day) {
$date->day(1)->subMonth()->day($date->daysInMonth);
}
return $date;
}
/**
* Add a month with no overflow to the instance
*
* @param int $value
*
* @return static
*/
public function addMonthNoOverflow($value = 1)
{
return $this->addMonthsNoOverflow($value);
}
/**
* Remove a month with no overflow from the instance
*
* @param int $value
*
* @return static
*/
public function subMonthNoOverflow($value = 1)
{
return $this->subMonthsNoOverflow($value);
}
/**
* Remove months with no overflow from the instance
*
* @param int $value
*
* @return static
*/
public function subMonthsNoOverflow($value)
{
return $this->addMonthsNoOverflow(-1 * $value);
}
/**
* Add days to the instance. Positive $value travels forward while
* negative $value travels into the past.
*
* @param int $value
*
* @return static
*/
public function addDays($value)
{
return $this->modify((int) $value.' day');
}
/**
* Add a day to the instance
*
* @param int $value
*
* @return static
*/
public function addDay($value = 1)
{
return $this->addDays($value);
}
/**
* Remove a day from the instance
*
* @param int $value
*
* @return static
*/
public function subDay($value = 1)
{
return $this->subDays($value);
}
/**
* Remove days from the instance
*
* @param int $value
*
* @return static
*/
public function subDays($value)
{
return $this->addDays(-1 * $value);
}
/**
* Add weekdays to the instance. Positive $value travels forward while
* negative $value travels into the past.
*
* @param int $value
*
* @return static
*/
public function addWeekdays($value)
{
return $this->modify((int) $value.' weekday');
}
/**
* Add a weekday to the instance
*
* @param int $value
*
* @return static
*/
public function addWeekday($value = 1)
{
return $this->addWeekdays($value);
}
/**
* Remove a weekday from the instance
*
* @param int $value
*
* @return static
*/
public function subWeekday($value = 1)
{
return $this->subWeekdays($value);
}
/**
* Remove weekdays from the instance
*
* @param int $value
*
* @return static
*/
public function subWeekdays($value)
{
return $this->addWeekdays(-1 * $value);
}
/**
* Add weeks to the instance. Positive $value travels forward while
* negative $value travels into the past.
*
* @param int $value
*
* @return static
*/
public function addWeeks($value)
{
return $this->modify((int) $value.' week');
}
/**
* Add a week to the instance
*
* @param int $value
*
* @return static
*/
public function addWeek($value = 1)
{
return $this->addWeeks($value);
}
/**
* Remove a week from the instance
*
* @param int $value
*
* @return static
*/
public function subWeek($value = 1)
{
return $this->subWeeks($value);
}
/**
* Remove weeks to the instance
*
* @param int $value
*
* @return static
*/
public function subWeeks($value)
{
return $this->addWeeks(-1 * $value);
}
/**
* Add hours to the instance. Positive $value travels forward while
* negative $value travels into the past.
*
* @param int $value
*
* @return static
*/
public function addHours($value)
{
return $this->modify((int) $value.' hour');
}
/**
* Add an hour to the instance
*
* @param int $value
*
* @return static
*/
public function addHour($value = 1)
{
return $this->addHours($value);
}
/**
* Remove an hour from the instance
*
* @param int $value
*
* @return static
*/
public function subHour($value = 1)
{
return $this->subHours($value);
}
/**
* Remove hours from the instance
*
* @param int $value
*
* @return static
*/
public function subHours($value)
{
return $this->addHours(-1 * $value);
}
/**
* Add minutes to the instance. Positive $value travels forward while
* negative $value travels into the past.
*
* @param int $value
*
* @return static
*/
public function addMinutes($value)
{
return $this->modify((int) $value.' minute');
}
/**
* Add a minute to the instance
*
* @param int $value
*
* @return static
*/
public function addMinute($value = 1)
{
return $this->addMinutes($value);
}
/**
* Remove a minute from the instance
*
* @param int $value
*
* @return static
*/
public function subMinute($value = 1)
{
return $this->subMinutes($value);
}
/**
* Remove minutes from the instance
*
* @param int $value
*
* @return static
*/
public function subMinutes($value)
{
return $this->addMinutes(-1 * $value);
}
/**
* Add seconds to the instance. Positive $value travels forward while
* negative $value travels into the past.
*
* @param int $value
*
* @return static
*/
public function addSeconds($value)
{
return $this->modify((int) $value.' second');
}
/**
* Add a second to the instance
*
* @param int $value
*
* @return static
*/
public function addSecond($value = 1)
{
return $this->addSeconds($value);
}
/**
* Remove a second from the instance
*
* @param int $value
*
* @return static
*/
public function subSecond($value = 1)
{
return $this->subSeconds($value);
}
/**
* Remove seconds from the instance
*
* @param int $value
*
* @return static
*/
public function subSeconds($value)
{
return $this->addSeconds(-1 * $value);
}
///////////////////////////////////////////////////////////////////
/////////////////////////// DIFFERENCES ///////////////////////////
///////////////////////////////////////////////////////////////////
/**
* Get the difference in years
*
* @param Carbon|null $dt
* @param bool $abs Get the absolute of the difference
*
* @return int
*/
public function diffInYears(Carbon $dt = null, $abs = true)
{
$dt = $dt ?: static::now($this->tz);
return (int) $this->diff($dt, $abs)->format('%r%y');
}
/**
* Get the difference in months
*
* @param Carbon|null $dt
* @param bool $abs Get the absolute of the difference
*
* @return int
*/
public function diffInMonths(Carbon $dt = null, $abs = true)
{
$dt = $dt ?: static::now($this->tz);
return $this->diffInYears($dt, $abs) * static::MONTHS_PER_YEAR + (int) $this->diff($dt, $abs)->format('%r%m');
}
/**
* Get the difference in weeks
*
* @param Carbon|null $dt
* @param bool $abs Get the absolute of the difference
*
* @return int
*/
public function diffInWeeks(Carbon $dt = null, $abs = true)
{
return (int) ($this->diffInDays($dt, $abs) / static::DAYS_PER_WEEK);
}
/**
* Get the difference in days
*
* @param Carbon|null $dt
* @param bool $abs Get the absolute of the difference
*
* @return int
*/
public function diffInDays(Carbon $dt = null, $abs = true)
{
$dt = $dt ?: static::now($this->tz);
return (int) $this->diff($dt, $abs)->format('%r%a');
}
/**
* Get the difference in days using a filter closure
*
* @param Closure $callback
* @param Carbon|null $dt
* @param bool $abs Get the absolute of the difference
*
* @return int
*/
public function diffInDaysFiltered(Closure $callback, Carbon $dt = null, $abs = true)
{
return $this->diffFiltered(CarbonInterval::day(), $callback, $dt, $abs);
}
/**
* Get the difference in hours using a filter closure
*
* @param Closure $callback
* @param Carbon|null $dt
* @param bool $abs Get the absolute of the difference
*
* @return int
*/
public function diffInHoursFiltered(Closure $callback, Carbon $dt = null, $abs = true)
{
return $this->diffFiltered(CarbonInterval::hour(), $callback, $dt, $abs);
}
/**
* Get the difference by the given interval using a filter closure
*
* @param CarbonInterval $ci An interval to traverse by
* @param Closure $callback
* @param Carbon|null $dt
* @param bool $abs Get the absolute of the difference
*
* @return int
*/
public function diffFiltered(CarbonInterval $ci, Closure $callback, Carbon $dt = null, $abs = true)
{
$start = $this;
$end = $dt ?: static::now($this->tz);
$inverse = false;
if ($end < $start) {
$start = $end;
$end = $this;
$inverse = true;
}
$period = new DatePeriod($start, $ci, $end);
$vals = array_filter(iterator_to_array($period), function (DateTime $date) use ($callback) {
return call_user_func($callback, Carbon::instance($date));
});
$diff = count($vals);
return $inverse && !$abs ? -$diff : $diff;
}
/**
* Get the difference in weekdays
*
* @param Carbon|null $dt
* @param bool $abs Get the absolute of the difference
*
* @return int
*/
public function diffInWeekdays(Carbon $dt = null, $abs = true)
{
return $this->diffInDaysFiltered(function (Carbon $date) {
return $date->isWeekday();
}, $dt, $abs);
}
/**
* Get the difference in weekend days using a filter
*
* @param Carbon|null $dt
* @param bool $abs Get the absolute of the difference
*
* @return int
*/
public function diffInWeekendDays(Carbon $dt = null, $abs = true)
{
return $this->diffInDaysFiltered(function (Carbon $date) {
return $date->isWeekend();
}, $dt, $abs);
}
/**
* Get the difference in hours
*
* @param Carbon|null $dt
* @param bool $abs Get the absolute of the difference
*
* @return int
*/
public function diffInHours(Carbon $dt = null, $abs = true)
{
return (int) ($this->diffInSeconds($dt, $abs) / static::SECONDS_PER_MINUTE / static::MINUTES_PER_HOUR);
}
/**
* Get the difference in minutes
*
* @param Carbon|null $dt
* @param bool $abs Get the absolute of the difference
*
* @return int
*/
public function diffInMinutes(Carbon $dt = null, $abs = true)
{
return (int) ($this->diffInSeconds($dt, $abs) / static::SECONDS_PER_MINUTE);
}
/**
* Get the difference in seconds
*
* @param Carbon|null $dt
* @param bool $abs Get the absolute of the difference
*
* @return int
*/
public function diffInSeconds(Carbon $dt = null, $abs = true)
{
$dt = $dt ?: static::now($this->tz);
$value = $dt->getTimestamp() - $this->getTimestamp();
return $abs ? abs($value) : $value;
}
/**
* The number of seconds since midnight.
*
* @return int
*/
public function secondsSinceMidnight()
{
return $this->diffInSeconds($this->copy()->startOfDay());
}
/**
* The number of seconds until 23:23:59.
*
* @return int
*/
public function secondsUntilEndOfDay()
{
return $this->diffInSeconds($this->copy()->endOfDay());
}
/**
* Get the difference in a human readable format in the current locale.
*
* When comparing a value in the past to default now:
* 1 hour ago
* 5 months ago
*
* When comparing a value in the future to default now:
* 1 hour from now
* 5 months from now
*
* When comparing a value in the past to another value:
* 1 hour before
* 5 months before
*
* When comparing a value in the future to another value:
* 1 hour after
* 5 months after
*
* @param Carbon|null $other
* @param bool $absolute removes time difference modifiers ago, after, etc
*
* @return string
*/
public function diffForHumans(Carbon $other = null, $absolute = false)
{
$isNow = $other === null;
if ($isNow) {
$other = static::now($this->tz);
}
$diffInterval = $this->diff($other);
switch (true) {
case ($diffInterval->y > 0):
$unit = 'year';
$count = $diffInterval->y;
break;
case ($diffInterval->m > 0):
$unit = 'month';
$count = $diffInterval->m;
break;
case ($diffInterval->d > 0):
$unit = 'day';
$count = $diffInterval->d;
if ($count >= self::DAYS_PER_WEEK) {
$unit = 'week';
$count = (int) ($count / self::DAYS_PER_WEEK);
}
break;
case ($diffInterval->h > 0):
$unit = 'hour';
$count = $diffInterval->h;
break;
case ($diffInterval->i > 0):
$unit = 'minute';
$count = $diffInterval->i;
break;
default:
$count = $diffInterval->s;
$unit = 'second';
break;
}
if ($count === 0) {
$count = 1;
}
$time = static::translator()->transChoice($unit, $count, array(':count' => $count));
if ($absolute) {
return $time;
}
$isFuture = $diffInterval->invert === 1;
$transId = $isNow ? ($isFuture ? 'from_now' : 'ago') : ($isFuture ? 'after' : 'before');
// Some langs have special pluralization for past and future tense.
$tryKeyExists = $unit.'_'.$transId;
if ($tryKeyExists !== static::translator()->transChoice($tryKeyExists, $count)) {
$time = static::translator()->transChoice($tryKeyExists, $count, array(':count' => $count));
}
return static::translator()->trans($transId, array(':time' => $time));
}
///////////////////////////////////////////////////////////////////
//////////////////////////// MODIFIERS ////////////////////////////
///////////////////////////////////////////////////////////////////
/**
* Resets the time to 00:00:00
*
* @return static
*/
public function startOfDay()
{
return $this->hour(0)->minute(0)->second(0);
}
/**
* Resets the time to 23:59:59
*
* @return static
*/
public function endOfDay()
{
return $this->hour(23)->minute(59)->second(59);
}
/**
* Resets the date to the first day of the month and the time to 00:00:00
*
* @return static
*/
public function startOfMonth()
{
return $this->startOfDay()->day(1);
}
/**
* Resets the date to end of the month and time to 23:59:59
*
* @return static
*/
public function endOfMonth()
{
return $this->day($this->daysInMonth)->endOfDay();
}
/**
* Resets the date to the first day of the year and the time to 00:00:00
*
* @return static
*/
public function startOfYear()
{
return $this->month(1)->startOfMonth();
}
/**
* Resets the date to end of the year and time to 23:59:59
*
* @return static
*/
public function endOfYear()
{
return $this->month(static::MONTHS_PER_YEAR)->endOfMonth();
}
/**
* Resets the date to the first day of the decade and the time to 00:00:00
*
* @return static
*/
public function startOfDecade()
{
return $this->startOfYear()->year($this->year - $this->year % static::YEARS_PER_DECADE);
}
/**
* Resets the date to end of the decade and time to 23:59:59
*
* @return static
*/
public function endOfDecade()
{
return $this->endOfYear()->year($this->year - $this->year % static::YEARS_PER_DECADE + static::YEARS_PER_DECADE - 1);
}
/**
* Resets the date to the first day of the century and the time to 00:00:00
*
* @return static
*/
public function startOfCentury()
{
return $this->startOfYear()->year($this->year - $this->year % static::YEARS_PER_CENTURY);
}
/**
* Resets the date to end of the century and time to 23:59:59
*
* @return static
*/
public function endOfCentury()
{
return $this->endOfYear()->year($this->year - $this->year % static::YEARS_PER_CENTURY + static::YEARS_PER_CENTURY - 1);
}
/**
* Resets the date to the first day of week (defined in $weekStartsAt) and the time to 00:00:00
*
* @return static
*/
public function startOfWeek()
{
if ($this->dayOfWeek !== static::$weekStartsAt) {
$this->previous(static::$weekStartsAt);
}
return $this->startOfDay();
}
/**
* Resets the date to end of week (defined in $weekEndsAt) and time to 23:59:59
*
* @return static
*/
public function endOfWeek()
{
if ($this->dayOfWeek !== static::$weekEndsAt) {
$this->next(static::$weekEndsAt);
}
return $this->endOfDay();
}
/**
* Modify to the next occurrence of a given day of the week.
* If no dayOfWeek is provided, modify to the next occurrence
* of the current day of the week. Use the supplied consts
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek
*
* @return static
*/
public function next($dayOfWeek = null)
{
if ($dayOfWeek === null) {
$dayOfWeek = $this->dayOfWeek;
}
return $this->startOfDay()->modify('next '.static::$days[$dayOfWeek]);
}
/**
* Modify to the previous occurrence of a given day of the week.
* If no dayOfWeek is provided, modify to the previous occurrence
* of the current day of the week. Use the supplied consts
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek
*
* @return static
*/
public function previous($dayOfWeek = null)
{
if ($dayOfWeek === null) {
$dayOfWeek = $this->dayOfWeek;
}
return $this->startOfDay()->modify('last '.static::$days[$dayOfWeek]);
}
/**
* Modify to the first occurrence of a given day of the week
* in the current month. If no dayOfWeek is provided, modify to the
* first day of the current month. Use the supplied consts
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek
*
* @return static
*/
public function firstOfMonth($dayOfWeek = null)
{
$this->startOfDay();
if ($dayOfWeek === null) {
return $this->day(1);
}
return $this->modify('first '.static::$days[$dayOfWeek].' of '.$this->format('F').' '.$this->year);
}
/**
* Modify to the last occurrence of a given day of the week
* in the current month. If no dayOfWeek is provided, modify to the
* last day of the current month. Use the supplied consts
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek
*
* @return static
*/
public function lastOfMonth($dayOfWeek = null)
{
$this->startOfDay();
if ($dayOfWeek === null) {
return $this->day($this->daysInMonth);
}
return $this->modify('last '.static::$days[$dayOfWeek].' of '.$this->format('F').' '.$this->year);
}
/**
* Modify to the given occurrence of a given day of the week
* in the current month. If the calculated occurrence is outside the scope
* of the current month, then return false and no modifications are made.
* Use the supplied consts to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int $nth
* @param int $dayOfWeek
*
* @return mixed
*/
public function nthOfMonth($nth, $dayOfWeek)
{
$dt = $this->copy()->firstOfMonth();
$check = $dt->format('Y-m');
$dt->modify('+'.$nth.' '.static::$days[$dayOfWeek]);
return $dt->format('Y-m') === $check ? $this->modify($dt) : false;
}
/**
* Modify to the first occurrence of a given day of the week
* in the current quarter. If no dayOfWeek is provided, modify to the
* first day of the current quarter. Use the supplied consts
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek
*
* @return static
*/
public function firstOfQuarter($dayOfWeek = null)
{
return $this->day(1)->month($this->quarter * 3 - 2)->firstOfMonth($dayOfWeek);
}
/**
* Modify to the last occurrence of a given day of the week
* in the current quarter. If no dayOfWeek is provided, modify to the
* last day of the current quarter. Use the supplied consts
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek
*
* @return static
*/
public function lastOfQuarter($dayOfWeek = null)
{
return $this->day(1)->month($this->quarter * 3)->lastOfMonth($dayOfWeek);
}
/**
* Modify to the given occurrence of a given day of the week
* in the current quarter. If the calculated occurrence is outside the scope
* of the current quarter, then return false and no modifications are made.
* Use the supplied consts to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int $nth
* @param int $dayOfWeek
*
* @return mixed
*/
public function nthOfQuarter($nth, $dayOfWeek)
{
$dt = $this->copy()->day(1)->month($this->quarter * 3);
$lastMonth = $dt->month;
$year = $dt->year;
$dt->firstOfQuarter()->modify('+'.$nth.' '.static::$days[$dayOfWeek]);
return ($lastMonth < $dt->month || $year !== $dt->year) ? false : $this->modify($dt);
}
/**
* Modify to the first occurrence of a given day of the week
* in the current year. If no dayOfWeek is provided, modify to the
* first day of the current year. Use the supplied consts
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek
*
* @return static
*/
public function firstOfYear($dayOfWeek = null)
{
return $this->month(1)->firstOfMonth($dayOfWeek);
}
/**
* Modify to the last occurrence of a given day of the week
* in the current year. If no dayOfWeek is provided, modify to the
* last day of the current year. Use the supplied consts
* to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int|null $dayOfWeek
*
* @return static
*/
public function lastOfYear($dayOfWeek = null)
{
return $this->month(static::MONTHS_PER_YEAR)->lastOfMonth($dayOfWeek);
}
/**
* Modify to the given occurrence of a given day of the week
* in the current year. If the calculated occurrence is outside the scope
* of the current year, then return false and no modifications are made.
* Use the supplied consts to indicate the desired dayOfWeek, ex. static::MONDAY.
*
* @param int $nth
* @param int $dayOfWeek
*
* @return mixed
*/
public function nthOfYear($nth, $dayOfWeek)
{
$dt = $this->copy()->firstOfYear()->modify('+'.$nth.' '.static::$days[$dayOfWeek]);
return $this->year === $dt->year ? $this->modify($dt) : false;
}
/**
* Modify the current instance to the average of a given instance (default now) and the current instance.
*
* @param Carbon|null $dt
*
* @return static
*/
public function average(Carbon $dt = null)
{
$dt = $dt ?: static::now($this->tz);
return $this->addSeconds((int) ($this->diffInSeconds($dt, false) / 2));
}
/**
* Check if its the birthday. Compares the date/month values of the two dates.
*
* @param Carbon|null $dt The instance to compare with or null to use current day.
*
* @return bool
*/
public function isBirthday(Carbon $dt = null)
{
$dt = $dt ?: static::now($this->tz);
return $this->format('md') === $dt->format('md');
}
}
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