(PHP 5 >= 5.5.0, PHP 7, PHP 8, PECL >= 3.0.0a1)
IntlCalendar::getActualMaximum — The maximum value for a field, considering the objectʼs current time
Objektorientierter Stil
Prozeduraler Stil
Returns a fieldʼs relative maximum value around the current time. The exact semantics vary by field, but in the general case this is the value that would be obtained if one would set the field value into the smallest relative maximum for the field and would increment it until reaching the global maximum or the field value wraps around, in which the value returned would be the global maximum or the value before the wrapping, respectively.
   For instance, in the gregorian calendar, the actual maximum value for the
   day of
   month would vary between 28 and
   31, depending on the month and year of the current time.
  
calendarEine IntlCalendar-Instanz.
field
 One of the IntlCalendar date/time field constants. These are integer
 values between 0 and
 IntlCalendar::FIELD_COUNT.
   An int representing the maximum value in the units associated
   with the given fieldBei einem Fehler wird false zurückgegeben..
  
Beispiel #1 IntlCalendar::getActualMaximum()
<?php
ini_set('date.timezone', 'Europe/Lisbon');
$cal = IntlCalendar::fromDateTime('2013-02-15');
var_dump($cal->getActualMaximum(IntlCalendar::FIELD_DAY_OF_MONTH)); //28
$cal->add(IntlCalendar::FIELD_EXTENDED_YEAR, -1);
var_dump($cal->getActualMaximum(IntlCalendar::FIELD_DAY_OF_MONTH)); //29Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
int(28) int(29)
