3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "\u00c5\u00a0koda"; $str = mb_convert_encoding($str, "iso-8859-1"); echo $str; $str = mb_convert_encoding($str, "utf-8"); echo $str;

preferences:
38.82 ms | 402 KiB | 5 Q