IntlCalendar::getFirstDayOfWeek
(PHP 5 >= 5.5.0, PHP 7, PHP 8, PECL >= 3.0.0a1)
IntlCalendar::getFirstDayOfWeek — Get the first day of the week for the calendarʼs locale
说明
面向对象风格
public IntlCalendar::getFirstDayOfWeek(): int|false
过程化风格
The week day deemed to start a week, either the default value for this locale or the value set with IntlCalendar::setFirstDayOfWeek().
参数
-
calendar -
IntlCalendar 实例。
返回值
One of the constants IntlCalendar::DOW_SUNDAY,
IntlCalendar::DOW_MONDAY, …,
IntlCalendar::DOW_SATURDAY 或者在失败时返回 false.
范例
示例 #1 IntlCalendar::getFirstDayOfWeek()
<?php
ini_set('date.timezone', 'UTC');
$cal1 = IntlCalendar::createInstance(NULL, 'es_ES');
var_dump($cal1->getFirstDayOfWeek()); // Monday
$cal1->set(2013, 1 /* February */, 3); // a Sunday
var_dump($cal1->get(IntlCalendar::FIELD_WEEK_OF_YEAR)); // 5
$cal2 = IntlCalendar::createInstance(NULL, 'en_US');
var_dump($cal2->getFirstDayOfWeek()); // Sunday
$cal2->set(2013, 1 /* February */, 3); // a Sunday
var_dump($cal2->get(IntlCalendar::FIELD_WEEK_OF_YEAR)); // 6
以上例程会输出：
int(2) int(5) int(1) int(6)
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