PHP 8.1.0 RC 4 available for testing

IntlCalendar::inDaylightTime

(PHP 5 >= 5.5.0, PHP 7, PHP 8, PECL >= 3.0.0a1)

IntlCalendar::inDaylightTimeWhether the objectʼs time is in Daylight Savings Time

Description

Style orienté objet

public IntlCalendar::inDaylightTime(): bool

Style procédural

intlcal_in_daylight_time(IntlCalendar $calendar): bool

Whether, for the instant represented by this object and for this objectʼs timezone, daylight saving time is in place.

Liste de paramètres

calendar

Une instance IntlCalendar.

Valeurs de retour

Returns true if the date is in Daylight Savings Time, false otherwise.

En cas d&échec false est aussi retourné. Pour détecter les conditions d&erreur intl_get_error_code() doit être utilisé, ou paramétrer Intl pour lancer des exceptions.

Exemples

Exemple #1 IntlCalendar::inDaylightTime()

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

$cal = new IntlGregorianCalendar(2013/* July */145631);
var_dump($cal->inDaylightTime()); // true
$cal->set(IntlCalendar::FIELD_MONTH11 /* December */);
var_dump($cal->inDaylightTime()); // false

//DST end transition on 2013-10-27 at 0200 (wall time back 1 hour)
$cal = new IntlGregorianCalendar(2013/* October */271300);

var_dump($cal->inDaylightTime()); // false (default WALLTIME_LAST)

$cal->setRepeatedWallTimeOption(IntlCalendar::WALLTIME_FIRST);
$cal->set(IntlCalendar::FIELD_HOUR_OF_DAY1); // force time recalculation
var_dump($cal->inDaylightTime()); // true

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