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    IntlCalendar::inDaylightTime

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

    IntlCalendar::inDaylightTime — Whether 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');

    $cal = new IntlGregorianCalendar(2013, 6 /* July */, 1, 4, 56, 31);
    var_dump($cal->inDaylightTime()); // true
    $cal->set(IntlCalendar::FIELD_MONTH, 11 /* December */);
    var_dump($cal->inDaylightTime()); // false

    //DST end transition on 2013-10-27 at 0200 (wall time back 1 hour)
    $cal = new IntlGregorianCalendar(2013, 9 /* October */, 27, 1, 30, 0);

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

    $cal->setRepeatedWallTimeOption(IntlCalendar::WALLTIME_FIRST);
    $cal->set(IntlCalendar::FIELD_HOUR_OF_DAY, 1); // force time recalculation
    var_dump($cal->inDaylightTime()); // true

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