IntlCalendar::setFirstDayOfWeek
(PHP 5 >= 5.5.0, PHP 7, PHP 8, PECL >= 3.0.0a1)
IntlCalendar::setFirstDayOfWeek — Set the day on which the week is deemed to start
Description
Object-oriented style
public IntlCalendar::setFirstDayOfWeek(int
$dayOfWeek): boolProcedural style
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.
Parameters
-
calendar -
An IntlCalendar instance.
-
dayOfWeek -
One of the constants
IntlCalendar::DOW_SUNDAY,IntlCalendar::DOW_MONDAY, …,IntlCalendar::DOW_SATURDAY.
Return Values
Always returns true.
Examples
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";
The above example will output:
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
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