IntlCalendar::inDaylightTime
(PHP 5.5.0, PECL >= 3.0.0a1)
IntlCalendar::inDaylightTime — Whether the objectʼs time is in Daylight Savings Time
Description
public bool IntlCalendar::inDaylightTime
( void
)
Whether, for the instant represented by this object and for this objectʼs timezone, daylight saving time is in place.
Liste de paramètres
Cette fonction ne contient aucun paramètre.
Valeurs de retour
Returns TRUE
if the date is in Daylight Savings Time, FALSE
otherwise.
The value FALSE
may also be returned on failure, for instance after
specifying invalid field values on non-lenient mode; use exceptions or query
intl_get_error_code() to disambiguate.
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