PHP - Manual: IntlGregorianCalendar

2024-12-23

IntlGregorianCalendar::__construct »

« IntlCalendar::toDateTime

The IntlGregorianCalendar class

(PHP 5 >= 5.5.0, PHP 7, PHP 8)

简介

类摘要

class IntlGregorianCalendar extends IntlCalendar {

/* 继承的常量 */

const int IntlCalendar::FIELD_ERA = 0;

const int IntlCalendar::FIELD_YEAR = 1;

const int IntlCalendar::FIELD_MONTH = 2;

const int IntlCalendar::FIELD_WEEK_OF_YEAR = 3;

const int IntlCalendar::FIELD_WEEK_OF_MONTH = 4;

const int IntlCalendar::FIELD_DATE = 5;

const int IntlCalendar::FIELD_DAY_OF_YEAR = 6;

const int IntlCalendar::FIELD_DAY_OF_WEEK = 7;

const int IntlCalendar::FIELD_DAY_OF_WEEK_IN_MONTH = 8;

const int IntlCalendar::FIELD_AM_PM = 9;

const int IntlCalendar::FIELD_HOUR = 10;

const int IntlCalendar::FIELD_HOUR_OF_DAY = 11;

const int IntlCalendar::FIELD_MINUTE = 12;

const int IntlCalendar::FIELD_SECOND = 13;

const int IntlCalendar::FIELD_MILLISECOND = 14;

const int IntlCalendar::FIELD_ZONE_OFFSET = 15;

const int IntlCalendar::FIELD_DST_OFFSET = 16;

const int IntlCalendar::FIELD_YEAR_WOY = 17;

const int IntlCalendar::FIELD_DOW_LOCAL = 18;

const int IntlCalendar::FIELD_EXTENDED_YEAR = 19;

const int IntlCalendar::FIELD_JULIAN_DAY = 20;

const int IntlCalendar::FIELD_MILLISECONDS_IN_DAY = 21;

const int IntlCalendar::FIELD_IS_LEAP_MONTH = 22;

const int IntlCalendar::FIELD_FIELD_COUNT = 23;

const int IntlCalendar::FIELD_DAY_OF_MONTH = 5;

const int IntlCalendar::DOW_SUNDAY = 1;

const int IntlCalendar::DOW_MONDAY = 2;

const int IntlCalendar::DOW_TUESDAY = 3;

const int IntlCalendar::DOW_WEDNESDAY = 4;

const int IntlCalendar::DOW_THURSDAY = 5;

const int IntlCalendar::DOW_FRIDAY = 6;

const int IntlCalendar::DOW_SATURDAY = 7;

const int IntlCalendar::DOW_TYPE_WEEKDAY = 0;

const int IntlCalendar::DOW_TYPE_WEEKEND = 1;

const int IntlCalendar::DOW_TYPE_WEEKEND_OFFSET = 2;

const int IntlCalendar::DOW_TYPE_WEEKEND_CEASE = 3;

const int IntlCalendar::WALLTIME_FIRST = 1;

const int IntlCalendar::WALLTIME_LAST = 0;

const int IntlCalendar::WALLTIME_NEXT_VALID = 2;

/* 方法 */

public __construct(IntlTimeZone $tz = ?, string $locale = ?)

public __construct(int $timeZoneOrYear, int $localeOrMonth, int $dayOfMonth)

public __construct(
    int $timeZoneOrYear,
    int $localeOrMonth,
    int $dayOfMonth,
    int $hour,
    int $minute,
    int $second = ?
)

public getGregorianChange(): float

public isLeapYear(int $year): bool

public setGregorianChange(float $timestamp): bool

/* 继承的方法 */

public IntlCalendar::add(int $field, int $value): bool

public IntlCalendar::after(IntlCalendar $other): bool

public IntlCalendar::before(IntlCalendar $other): bool

public IntlCalendar::clear(?int $field = null): bool

public static IntlCalendar::createInstance(IntlTimeZone|DateTimeZone|string|null $timezone = null, ?string $locale = null): ?IntlCalendar

public IntlCalendar::equals(IntlCalendar $other): bool

public IntlCalendar::fieldDifference(float $timestamp, int $field): int|false

public static IntlCalendar::fromDateTime(DateTime|string $datetime, ?string $locale = null): ?IntlCalendar

public IntlCalendar::get(int $field): int|false

public IntlCalendar::getActualMaximum(int $field): int|false

public IntlCalendar::getActualMinimum(int $field): int|false

public static IntlCalendar::getAvailableLocales(): array

public IntlCalendar::getDayOfWeekType(int $dayOfWeek): int|false

public IntlCalendar::getErrorCode(): int|false

public IntlCalendar::getErrorMessage(): string|false

public IntlCalendar::getFirstDayOfWeek(): int|false

public IntlCalendar::getGreatestMinimum(int $field): int|false

public static IntlCalendar::getKeywordValuesForLocale(string $keyword, string $locale, bool $onlyCommon): IntlIterator|false

public IntlCalendar::getLeastMaximum(int $field): int|false

public IntlCalendar::getLocale(int $type): string|false

public IntlCalendar::getMaximum(int $field): int|false

public IntlCalendar::getMinimalDaysInFirstWeek(): int|false

public IntlCalendar::getMinimum(int $field): int|false

public static IntlCalendar::getNow(): float

public IntlCalendar::getRepeatedWallTimeOption(): int

public IntlCalendar::getSkippedWallTimeOption(): int

public IntlCalendar::getTime(): float|false

public IntlCalendar::getTimeZone(): IntlTimeZone|false

public IntlCalendar::getType(): string

public IntlCalendar::getWeekendTransition(int $dayOfWeek): int|false

public IntlCalendar::inDaylightTime(): bool

public IntlCalendar::isEquivalentTo(IntlCalendar $other): bool

public IntlCalendar::isLenient(): bool

public IntlCalendar::isSet(int $field): bool

public IntlCalendar::isWeekend(?float $timestamp = null): bool

public IntlCalendar::roll(int $field, int|bool $value): bool

public IntlCalendar::set(int $field, int $value): bool

public IntlCalendar::set(
    int $year,
    int $month,
    int $dayOfMonth = NULL,
    int $hour = NULL,
    int $minute = NULL,
    int $second = NULL
): bool

public IntlCalendar::setFirstDayOfWeek(int $dayOfWeek): bool

public IntlCalendar::setLenient(bool $lenient): bool

public IntlCalendar::setMinimalDaysInFirstWeek(int $days): bool

public IntlCalendar::setRepeatedWallTimeOption(int $option): bool

public IntlCalendar::setSkippedWallTimeOption(int $option): bool

public IntlCalendar::setTime(float $timestamp): bool

public IntlCalendar::setTimeZone(IntlTimeZone|DateTimeZone|string|null $timezone): bool

public IntlCalendar::toDateTime(): DateTime|false

}

IntlGregorianCalendar::__construct — Create the Gregorian Calendar class
IntlGregorianCalendar::getGregorianChange — Get the Gregorian Calendar change date
IntlGregorianCalendar::isLeapYear — Determine if the given year is a leap year
IntlGregorianCalendar::setGregorianChange — Set the Gregorian Calendar the change date

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User Contributed Notes 1 note

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Julian Sawicki ¶

1 year ago


I was using `IntlGregorianCalendar` because it offered a nice way to get the week number of the year as an integer. This differs from `DateTime`; `DateTime` gives you the week number of the year as an string.

<?php 

$dateTime = new DateTime('21-09-2020 09:00:00');
echo $dateTime->format("W"); // string '39'

$intlCalendar = IntlCalendar::fromDateTime ('21-09-2020 09:00:00');
echo $intlCalendar->get(IntlCalendar::FIELD_WEEK_OF_YEAR); // integer 39

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官方地址：https://www.php.net/manual/en/class.intlgregoriancalendar.php

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The IntlGregorianCalendar class

简介

类摘要

目录

User Contributed Notes 1 note