The IntlGregorianCalendar class

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



class IntlGregorianCalendar extends IntlCalendar {
/* 继承的常量 */
/* 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 static createFromDate(int $year, int $month, int $dayOfMonth): static
public static createFromDateTime(
    int $year,
    int $month,
    int $dayOfMonth,
    int $hour,
    int $minute,
    ?int $second = null
): static
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::clear(?int $field = null): true
public IntlCalendar::fieldDifference(float $timestamp, int $field): int|false
public IntlCalendar::get(int $field): int|false
public static IntlCalendar::getKeywordValuesForLocale(string $keyword, string $locale, bool $onlyCommon): IntlIterator|false
public static IntlCalendar::getNow(): float
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): true
public IntlCalendar::set(
    int $year,
    int $month,
    int $dayOfMonth = NULL,
    int $hour = NULL,
    int $minute = NULL,
    int $second = NULL
): true
public IntlCalendar::setDate(int $year, int $month, int $dayOfMonth): void
public IntlCalendar::setDateTime(
    int $year,
    int $month,
    int $dayOfMonth,
    int $hour,
    int $minute,
    ?int $second = null
): void
public IntlCalendar::setTime(float $timestamp): bool


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User Contributed Notes 1 note

Julian Sawicki
3 years 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.


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

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