IntlCalendar
PHP Manual

IntlCalendar::roll

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

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

Descrição

Estilo orientado à objeto

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

Estilo 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.

Parâmetros

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).

Valor Retornado

Returns TRUE on success or FALSE on failure.

Exemplos

Exemplo #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"

O exemplo acima irá imprimir:

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

Veja Também

IntlCalendar
PHP Manual