Req #69512 [Opn]: No multibyte strrev function
| From: | 550794054 at qq dot com | Date: | Thu, 23 Apr 2015 15:36:20 +0000 |
| Subject: | Req #69512 [Opn]: No multibyte strrev function | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-192299@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=69512&edit=1
ID: 69512
User updated by: 550794054 at qq 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:
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.
Previous Comments:
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[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.
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[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="æçååå«å°æâ;
$str1=strrev($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!
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Edit this bug report at https://bugs.php.net/bug.php?id=69512&edit=1