(PHP 5 >= 5.5.0, PHP 7, PECL >= 3.0.0a1)
IntlCalendar::getSkippedWallTimeOption — Get behavior for handling skipped wall time
Object oriented style
public IntlCalendar::getSkippedWallTimeOption ( ) : int
Procedural style
intlcal_get_skipped_wall_time_option ( IntlCalendar $cal ) : int
Gets the current strategy for dealing with wall times that are skipped whenever the clock is forwarded during dailight saving time start transitions. The default value is IntlCalendar::WALLTIME_LAST.
The calendar must be lenient for this option to have any effect, otherwise attempting to set a non-existing time will cause an error.
This function requires ICU 4.9 or later.
cal
The IntlCalendar resource.
One of the constants IntlCalendar::WALLTIME_FIRST, IntlCalendar::WALLTIME_LAST or IntlCalendar::WALLTIME_NEXT_VALID.
Example #1 IntlCalendar::getSkippedWallTimeOption()
<?php
ini_set('date.timezone', 'Europe/Lisbon');
ini_set('intl.default_locale', 'en_US');
ini_set('intl.error_level', E_WARNING);
//On March 31st at 0100, the clock goes forward 1 hour and from GMT+00 to GMT+01
$cal = new IntlGregorianCalendar(2013, 2 /* March */, 31, 1, 30);
var_dump(
$cal->isLenient(), // true
$cal->getSkippedWalltimeOption() // 0 WALLTIME_LAST
);
$formatter = IntlDateFormatter::create(
NULL,
IntlDateFormatter::FULL,
IntlDateFormatter::FULL,
'UTC'
);
var_dump($formatter->format($cal->getTime() / 1000));
$cal->setSkippedWallTimeOption(IntlCalendar::WALLTIME_FIRST);
var_dump($cal->getSkippedWalltimeOption()); // 1 WALLTIME_FIRST
$cal->set(IntlCalendar::FIELD_HOUR_OF_DAY, 1);
var_dump($formatter->format($cal->getTime() / 1000));
$cal->setSkippedWallTimeOption(IntlCalendar::WALLTIME_NEXT_VALID);
var_dump($cal->getSkippedWalltimeOption()); // 2 WALLTIME_NEXT_VALID
$cal->set(IntlCalendar::FIELD_HOUR_OF_DAY, 1);
var_dump($formatter->format($cal->getTime() / 1000)); The above example will output:
bool(true) int(0) string(40) "Sunday, March 31, 2013 at 1:30:00 AM GMT" int(1) string(41) "Sunday, March 31, 2013 at 12:30:00 AM GMT" int(2) string(40) "Sunday, March 31, 2013 at 1:00:00 AM GMT"
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https://www.php.net/manual/en/intlcalendar.getskippedwalltimeoption.php