IntlCalendar
PHP Manual

IntlCalendar::roll

(PHP 5.5.0, PECL >= 3.0.0a1)

IntlCalendar::roll — Add value to field without carrying into more significant fields

Descrierea

Stil obiect-orientat

public bool IntlCalendar::roll ( int $field , mixed $amountOrUpOrDown )

Stil procedural

bool intlcal_roll ( IntlCalendar $cal , int $field , mixed $amountOrUpOrDown )

Adds a (signed) amount to a field. The difference with respect to IntlCalendar::add() is that when the field value overflows, it does not carry into more significant fields.

Parametri

cal

The IntlCalendar resource.

field

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

amountOrUpOrDown

The (signed) amount to add to the field, TRUE for rolling up (adding 1), or FALSE for rolling down (subtracting 1).

Valorile întoarse

Returns TRUE on success or FALSE on failure.

Exemple

Example #1 IntlCalendar::roll()

<?php
ini_set('date.timezone', 'Europe/Lisbon');
ini_set('intl.default_locale', 'pt_PT');

$cal = new IntlGregorianCalendar(2013, 5 /* June */, 30);

$cal->add(IntlCalendar::FIELD_DAY_OF_MONTH, 1);
var_dump(IntlDateFormatter::formatObject($cal)); // "01/07/2013, 00:00:00"

$cal->set(2013, 5 /* June */, 30);
$cal->roll(IntlCalendar::FIELD_DAY_OF_MONTH, true); // roll up, same as rolling +1
var_dump(IntlDateFormatter::formatObject($cal)); // "01/06/2013, 00:00:00"

Exemplul de mai sus va afișa:

string(20) "01/07/2013, 00:00:00"
string(20) "01/06/2013, 00:00:00"

Vedeți de asemenea

IntlCalendar
PHP Manual