(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1)
IntlCalendar::setFirstDayOfWeek — Set the day on which the week is deemed to start
面向对象风格
$dayOfWeek
)过程化风格
Defines the day of week deemed to start the week. This affects the behavior
of fields that depend on the concept of week start and end such as
IntlCalendar::FIELD_WEEK_OF_YEAR
and
IntlCalendar::FIELD_YEAR_WOY
.
cal
The IntlCalendar resource.
dayOfWeek
One of the constants IntlCalendar::DOW_SUNDAY
,
IntlCalendar::DOW_MONDAY
, …,
IntlCalendar::DOW_SATURDAY
.
Returns TRUE
on success. Failure can only happen due to invalid parameters.
Example #1 IntlCalendar::setFirstDayOfWeek()
<?php
ini_set('date.timezone', 'Europe/Lisbon');
ini_set('intl.default_locale', 'es_ES');
$cal = IntlCalendar::createInstance();
$cal->set(2013, 5 /* June */, 30); // A Sunday
var_dump($cal->getFirstDayOfWeek()); // 2 (Monday)
echo IntlDateFormatter::formatObject($cal, <<<EOD
'local day of week: 'cc'
week of month : 'W'
week of year : 'ww
EOD
), "\n";
$cal->setFirstDayOfWeek(IntlCalendar::DOW_SUNDAY);
echo IntlDateFormatter::formatObject($cal, <<<EOD
'local day of week: 'cc'
week of month : 'W'
week of year : 'ww
EOD
), "\n";
以上例程会输出:
int(2) local day of week: 7 week of month : 4 week of year : 26 local day of week: 1 week of month : 5 week of year : 27