update : 2015.11.03
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The maximum value for a field, considering the objectʼs current time
IntlCalendar
PHP Manual

IntlCalendar::getActualMaximum

(PHP 5.5.0, PECL >= 3.0.0a1)

IntlCalendar::getActualMaximum — The maximum value for a field, considering the objectʼs current time

설명

객체 기반 형식

public int IntlCalendar::getActualMaximum ( int $field )

절차식 형식

int intlcal_get_actual_maximum ( IntlCalendar $cal , int $field )

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.

인수

cal

The IntlCalendar resource.

field

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

반환값

An int representing the maximum value in the units associated with the given field실패 시 FALSE를 반환합니다.

예제

Example #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

위 예제의 출력:

int(28)
int(29)

참고

IntlCalendar
PHP Manual