IntlCalendar::getMinimalDaysInFirstWeek

(PHP 5 >= 5.5.0, PHP 7, PECL >= 3.0.0a1)

IntlCalendar::getMinimalDaysInFirstWeek — Get minimal number of days the first week in a year or month can have

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public IntlCalendar::getMinimalDaysInFirstWeek ( void ) : int

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intlcal_get_minimal_days_in_first_week ( IntlCalendar $cal ) : int

Returns the smallest number of days the first week of a year or month must have in the new year or month. For instance, in the Gregorian calendar, if this value is 1, then the first week of the year will necessarily include January 1st, while if this value is 7, then the week with January 1st will be the first week of the year only if the day of the week for January 1st matches the day of the week returned by IntlCalendar::getFirstDayOfWeek(); otherwise it will be the previous year?s last week.

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cal

The IntlCalendar resource.

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An int representing a number of days 锟斤拷锟斤拷锟斤拷失锟斤拷时锟斤拷锟斤拷 FALSE.

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Example #1 IntlCalendar::getMinimalDaysInFirstWeek()

<?php
ini_set('date.timezone', 'UTC');
ini_set('intl.default_locale', 'en_US');

$cal = new IntlGregorianCalendar(2013, 0 /* January */, 2);
var_dump(IntlDateFormatter::formatObject($cal, 'cccc')); // Wednesday

var_dump($cal->getMinimalDaysInFirstWeek(), // 1
$cal->getFirstDayofWeek()); // 1 (Sunday)

// Week 1 of 2013
var_dump(IntlDateFormatter::formatObject($cal, "'Week 'w' of 'Y"));

$cal->setMinimalDaysInFirstWeek(4);
// Still Week 1 of 2013 (1st week has 5 days in the new year)
var_dump(IntlDateFormatter::formatObject($cal, "'Week 'w' of 'Y"));

$cal->setMinimalDaysInFirstWeek(6);
// Week 53 of 2012
var_dump(IntlDateFormatter::formatObject($cal, "'Week 'w' of 'Y"));

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string(9) "Wednesday"
int(1)
int(1)
string(14) "Week 1 of 2013"
string(14) "Week 1 of 2013"
string(15) "Week 53 of 2012"