<?php
print_r(
iterator_to_array(
IntlCalendar::getKeywordValuesForLocale(
'calendar', 'fa_IR', true)));
print_r(
iterator_to_array(
IntlCalendar::getKeywordValuesForLocale(
'calendar', 'fa_IR', false)));
Array
(
[0] => persian
[1] => gregorian
[2] => islamic
[3] => islamic-civil
)
Array
(
[0] => persian
[1] => gregorian
[2] => islamic
[3] => islamic-civil
[4] => japanese
[5] => buddhist
[6] => roc
[7] => hebrew
[8] => chinese
[9] => indian
[10] => coptic
[11] => ethiopic
[12] => ethiopic-amete-alem
)