IntlCalendar::getActualMaximum
(PHP 5 >= 5.5.0, PHP 7, PECL >= 3.0.0a1)
IntlCalendar::getActualMaximum — The maximum value for a field, considering the objectʼs current time
説明
オブジェクト指向型
public IntlCalendar::getActualMaximum
( int $field
) : int|false
手続き型
intlcal_get_actual_maximum
( IntlCalendar $cal
, int $field
) : int|false
Returns a fieldʼs relative maximum value around the current time. The exact semantics vary by field, but in the general case this is the value that would be obtained if one would set the field value into the smallest relative maximum for the field and would increment it until reaching the global maximum or the field value wraps around, in which the value returned would be the global maximum or the value before the wrapping, respectively.
For instance, in the gregorian calendar, the actual maximum value for the
day of
month would vary between 28 and
31, depending on the month and year of the current time.
パラメータ
cal- The IntlCalendar resource.
field- IntlCalendar の日付/時刻 フィールド定数 のいずれか。
0からIntlCalendar::FIELD_COUNTまでの間の整数値です。
返り値
An int representing the maximum value in the units associated
with the given field失敗した場合に false を返します.
例
例1 IntlCalendar::getActualMaximum()
<?phpini_set('date.timezone', 'Europe/Lisbon');$cal = IntlCalendar::fromDateTime('2013-02-15');var_dump($cal->getActualMaximum(IntlCalendar::FIELD_DAY_OF_MONTH)); //28$cal->add(IntlCalendar::FIELD_EXTENDED_YEAR, -1);var_dump($cal->getActualMaximum(IntlCalendar::FIELD_DAY_OF_MONTH)); //29
上の例の出力は以下となります。
int(28) int(29)
参考
- IntlCalendar::getMaximum() - Get the global maximum value for a field
- IntlCalendar::getLeastMaximum() - Get the smallest local maximum for a field
- IntlCalendar::getActualMinimum() - The minimum value for a field, considering the objectʼs current time
