PHP 5.6.0beta1 released

IntlCalendar::add

(PHP 5.5.0, PECL >= 3.0.0a1)

IntlCalendar::addAdd a (signed) amount of time to a field

Descrizione

Stile orientato agli oggetti

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

Stile procedurale

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.

Elenco dei parametri

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.

Valori restituiti

Returns TRUE on success o FALSE in caso di fallimento.

Esempi

Example #1 IntlCalendar::add()

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

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

$cal->add(IntlCalendar::FIELD_MONTH1);
echo 
IntlDateFormatter::formatObject($cal), "\n";

$cal->add(IntlCalendar::FIELD_DAY_OF_MONTH1);
echo 
IntlDateFormatter::formatObject($cal), "\n";

Il precedente esempio visualizzerà:

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

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