3v4l.org

run code in 300+ PHP versions simultaneously
<?php $supported_locales = "en_US,nl_NL"; $array = explode(',', $supported_locales); $array = array_map( function ($value) { list($key, $value) = explode('_', $value); return [$key => $value]; }, $array); print_r($array);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Array ( [0] => Array ( [en] => US ) [1] => Array ( [nl] => NL ) )

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