How to reverse a Unicode string

Question

It was hinted in a comment to an answer to this question that PHP can not reverse Unicode strings.

As for Unicode, it works in PHP because most app

Answer 1

Here's another way. This seems to work without having to specify an output encoding (tested with a couple of different mb_internal_encodings):

function mb_strrev($text)
{
    return join('', array_reverse(
        preg_split('~~u', $text, -1, PREG_SPLIT_NO_EMPTY)
    ));
}