IntlGregorianCalendar クラス

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

はじめに

クラス概要

class IntlGregorianCalendar extends IntlCalendar {
/* 継承した定数 */
const int IntlCalendar::FIELD_ERA = 0;
const int IntlCalendar::FIELD_HOUR = 10;
/* メソッド */
public __construct(IntlTimeZone $tz = ?, string $locale = ?)
public getGregorianChange(): float|false
public isLeapYear(int $year): bool
public setGregorianChange(float $date): bool
/* 継承したメソッド */
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::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::getMinimum(int $field): int|false
public static IntlCalendar::getNow(): float
public IntlCalendar::getTime(): float|false
public IntlCalendar::getType(): string
public IntlCalendar::getWeekendTransition(int $dayOfWeek): int|false
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::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
}

目次

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User Contributed Notes 1 note

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1
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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