IntlCalendar::add

(PHP 5.5.0, PECL >= 3.0.0a1)

IntlCalendar::add — Add a (signed) amount of time to a field

설명

객체 기반 형식

public bool IntlCalendar::add ( int $field , int $amount )

절차식 형식

bool intlcal_add ( IntlCalendar $cal , int $field , int $amount )

Add a signed amount to a field. Adding a positive amount allows advances in time, even if the numeric value of the field decreases (e.g. when working with years in BC dates).

Other fields may need to adjusted – for instance, adding a month to the 31st of January will result in the 28th (or 29th) of February. Contrary to IntlCalendar::roll(), when a value wraps around, more significant fields may change. For instance, adding a day to the 31st of January will result in the 1st of February, not the 1st of Janurary.

인수

cal: The IntlCalendar resource.
field: One of the IntlCalendar date/time field constants. These are integer values between 0 and IntlCalendar::FIELD_COUNT.
amount: The signed amount to add to the current field. If the amount is positive, the instant will be moved forward; if it is negative, the instant wil be moved into the past. The unit is implicit to the field type. For instance, hours for IntlCalendar::FIELD_HOUR_OF_DAY.

반환값

Returns TRUE on success실패 시 FALSE를 반환합니다.

예제

Example #1 IntlCalendar::add()


<?php
ini_set('intl.default_locale', 'fr_FR');
ini_set('date.timezone', 'UTC');

$cal = new IntlGregorianCalendar(2012, 0 /* January */, 31);
echo IntlDateFormatter::formatObject($cal), "\n";

$cal->add(IntlCalendar::FIELD_MONTH, 1);
echo IntlDateFormatter::formatObject($cal), "\n";

$cal->add(IntlCalendar::FIELD_DAY_OF_MONTH, 1);
echo IntlDateFormatter::formatObject($cal), "\n";

위 예제의 출력:

31 janv. 2012 00:00:00
29 févr. 2012 00:00:00
1 mars 2012 00:00:00