(PHP 5 >= 5.5.0, PHP 7, PECL >= 3.0.0a1)
IntlCalendar::roll — Add value to field without carrying into more significant fields
Stil obiect-orientat
Stil procedural
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.
calThe IntlCalendar resource.
field
Una din constantele de câmp
dată/oră ale IntlCalendar. Acestea sunt valori întregi
de la 0 până la 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).
Returns TRUE on success or FALSE on failure.
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"