(PHP 5 >= 5.5.0, PHP 7, PECL >= 3.0.0a1)
IntlCalendar::roll — Add value to field without carrying into more significant fields
Style orienté objet
Style procédural
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
Une constantes de champ
date/heure IntlCalendar. Ceux sont des valeurs entières
comprises entre 0 et
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.
Exemple #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"
L'exemple ci-dessus va afficher :
string(20) "01/07/2013, 00:00:00" string(20) "01/06/2013, 00:00:00"