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IntlCalendar::getSkippedWallTimeOption — Get behavior for handling skipped wall time
面向对象风格
过程化风格
$cal
)
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 , 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 ));
以上例程会输出:
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"