IntlCalendar::inDaylightTime

(PHP 5.5.0, PECL >= 3.0.0a1)

IntlCalendar::inDaylightTime — Whether the objectʼs time is in Daylight Savings Time

Descripción

Estilo orientado a objetos

public bool IntlCalendar::inDaylightTime ( void )

Estilo por procedimientos

bool intlcal_in_daylight_time ( IntlCalendar $cal )

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

Parámetros

cal: The IntlCalendar resource.

Valores devueltos

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.

Ejemplos

Ejemplo #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