(PHP 5 >= 5.5.0, PHP 7, PECL >= 3.0.0a1)
IntlCalendar::setFirstDayOfWeek — Set the day on which the week is deemed to start
Object oriented style
public IntlCalendar::setFirstDayOfWeek ( int $dayOfWeek ) : bool
Procedural style
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
.
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";
The above example will output:
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https://www.php.net/manual/en/intlcalendar.setfirstdayofweek.php