IntlCalendar::setFirstDayOfWeek()
(PHP 5 >= 5.5.0, PHP 7, PECL >= 3.0.0a1)
Set the day on which the week is deemed to start
说明
面向对象风格public IntlCalendar::setFirstDayOfWeek(int $dayOfWeek): bool
过程化风格
intlcal_set_first_day_of_week(IntlCalendar$cal,int $dayOfWeek): bool
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
.
参数
- $cal
The IntlCalendar resource.
- $dayOfWeek
One of the constants
IntlCalendar::DOW_SUNDAY
,IntlCalendar::DOW_MONDAY
,…,IntlCalendar::DOW_SATURDAY
.
返回值
Returns TRUE
on success. Failure can only happen due to invalid parameters.
范例
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