Req #69512 [Com]: No multibyte strrev function

Edit report at https://bugs.php.net/bug.php?id=69512&edit=1 ID: 69512 Comment by: sound1st dot piano at gmail dot com Reported by: 550794054 at qq dot com Summary: No multibyte strrev function Status: Open Type: Feature/Change Request Package: mbstring related Operating System: windows PHP Version: 5.6.8 Block user comment: N Private report: N New Comment: PHP must implement a function like: mb_strrev ( string $string [, string $encoding = mb_internal_encoding() ] ) : string It is out of the question that a programming language cannot support multibyte encodings fully in this day and age. Stackoverflow: https://stackoverflow.com/questions/17496493/strrev-dosent-support-utf-8 Previous Comments: ------------------------------------------------------------------------ [2015-04-23 15:36:19] 550794054 at qq dot com Thanks for reply me.I'm a begin PHP learner.I also konw it's can use the regular expression can deal with the problem.But it's so hard.I think if there can be an instruction can use,it will be better.Because there come to "mb_subtr()","mb_strpos()","mb_strstr()",why just add "mb_strrev"? it's just my advice,thanks again for reply me. ------------------------------------------------------------------------ [2015-04-23 13:20:11] cmb@php.net A mb_strrev would not necessarily give the desired results, because the mb_* functions work on code points (when dealing with UTF-8), what doesn't cater to combining chars. A grapheme_strrev would be more useful. ------------------------------------------------------------------------ [2015-04-23 13:14:14] requinix@php.net strrev(), like most other string functions, operate on bytes. They are not suitable for multibyte strings. There is no "mb_strrev" function so I'm turning this ticket into a feature request for one. Meanwhile the best option *for UTF-8 strings* I can think of is to use preg_split() or _match() with /u to split the input into characters, reverse the array, and implode() them back together. ------------------------------------------------------------------------ [2015-04-23 13:02:47] 550794054 at qq dot com Description: ------------ --- From manual page: http://www.php.net/function.strrev --- I find the instruction "strrev" cannot support non-English string,if want to reverse like chinese string ,Janpanese string,or Russian string,"strrev" will display gibberish.even add Prefix "mb_" also not support. Test script: --------------- <?php $str="我的名字叫小明”; $str1=strrev($str); echo $str1; ?> Expected result: ---------------- maybe it's the problem belongs to C.but I also want to PHP group can fix the problem. Thank you! ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=69512&edit=1