如果您使用空字串呼叫此方法,它將回傳 ICU 函式庫中所有可用地區設定的清單(透過 intl 擴充套件)
<?php
print_r(ResourceBundle::getLocales(''));
/* 輸出結果可能如下所示
* 陣列
* (
* [0] => af
* [1] => af_NA
* [2] => af_ZA
* [3] => am
* [4] => am_ET
* [5] => ar
* [6] => ar_AE
* [7] => ar_BH
* [8] => ar_DZ
* [9] => ar_EG
* [10] => ar_IQ
* ...
*/
?>