Convert locale long format to short one

Question

I have following locale strings:

pl_PL
en_GB

Is it possible to convert it with some native function that works with real locale dataset into:

pl
en

Solutions like:

list($short) = explode('_', 'pl_PL');

is not expected right now.

Answer 1

locale_parse from the intl extension should do this for you. From the documentation:

<?php
$arr = locale_parse('sl-Latn-IT-nedis');
if ($arr) {
    foreach ($arr as $key => $value) {
        echo "$key : $value , ";
        // language : sl , script : Latn , region : IT , variant0 : NEDIS ,
    }
}
?>