IntlCalendar::getActualMaximum

(PHP 5 >= 5.5.0, PHP 7, PHP 8, PECL >= 3.0.0a1)

IntlCalendar::getActualMaximum — The maximum value for a field, considering the object?s current time

說明

面向?qū)ο箫L(fēng)格

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

過程化風(fēng)格

intlcal_get_actual_maximum(IntlCalendar $calendar, int $field): int|false

Returns a field?s 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.

參數(shù)

calendar

IntlCalendar 實例。

field

One of the IntlCalendar date/time field constants. These are integer values between 0 and IntlCalendar::FIELD_COUNT.

返回值

An int representing the maximum value in the units associated with the given field 或者在失敗時返回 false.

范例

示例 #1 IntlCalendar::getActualMaximum()

<?php
ini_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

以上例程會輸出：

int(28)
int(29)

參見