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IntlCalendar::setRepeatedWallTimeOption — Set behavior for handling repeating wall times at negative timezone offset transitions
面向对象风格
$wallTimeOption
)过程化风格
$cal
, int $wallTimeOption
)
Sets the current strategy for dealing with wall times that are repeated
whenever the clock is set back during dailight saving time end transitions.
The default value is IntlCalendar::WALLTIME_LAST
(take
the post-DST instant). The other possible value is
IntlCalendar::WALLTIME_FIRST
(take the instant that
occurs during DST).
This function requires ICU 4.9 or later.
cal
The IntlCalendar resource.
wallTimeOption
One of the constants IntlCalendar::WALLTIME_FIRST
or
IntlCalendar::WALLTIME_LAST
.
Returns TRUE
on success. Failure can only happen due to invalid parameters.
See the example on IntlCalendar::getRepeatedWallTimeOption() .