IntlCalendar
PHP Manual

IntlCalendar::getMinimalDaysInFirstWeek

(PHP 5.5.0, PECL >= 3.0.0a1)

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

説明

public int IntlCalendar::getMinimalDaysInFirstWeek ( void )

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 yearʼs last week.

パラメータ

この関数にはパラメータはありません。

返り値

An int representing a number of days失敗した場合に FALSE を返します.

例1 IntlCalendar::getMinimalDaysInFirstWeek()

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

$cal = new IntlGregorianCalendar(2013/* January */2);
var_dump(IntlDateFormatter::formatObject($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"));

上の例の出力は以下となります。

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"


IntlCalendar
PHP Manual