#47742 [Fbk]: mb_strtoupper() and mb_strtolower() failure cases

From: Date: Wed, 06 May 2009 21:10:02 +0000
Subject: #47742 [Fbk]: mb_strtoupper() and mb_strtolower() failure cases
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-136886@lists.php.net to get a copy of this message 
 ID:               47742
 Updated by:       jani@php.net
 Reported By:      fsb at thefsb dot org
 Status:           Feedback
 Bug Type:         mbstring related
 Operating System: os x
 PHP Version:      5.2.9
 New Comment:

Ignore the previous, this bad bug system messed up the input. :)
Here's the actual stuff: http://pecl.php.net/~jani/bug47742.out


Previous Comments:
------------------------------------------------------------------------

[2009-05-06 21:07:33] jani@php.net

This script:
<?php
$s = '&#935;&#953;&#972;&#957;&#953;&#945;,
&#946;&#961;&#959;&#967;&#941;&#962; &#954;&#945;&#953;
&#952;&#965;&#949;&#955;&#955;&#974;&#948;&#949;&#953;&#962;
&#940;&#957;&#949;&#956;&#959;&#953;
&#963;&#965;&#957;&#952;&#941;&#964;&#959;&#965;&#957;
&#964;&#959;';
echo "orig: $s\n";
$s = mb_strtoupper($s);
echo "mb_strtoupper: $s\n";
$s = mb_convert_case($s, MB_CASE_UPPER, "UTF-8");
echo "mb_convert_case (upper): $s\n";
$s = mb_strtolower($s);
echo "mb_strtolower: $s\n";
$s = mb_convert_case($s, MB_CASE_LOWER, "UTF-8");
echo "mb_convert_case (lower): $s\n";
?>

Outputs:

orig: &#935;&#953;&#972;&#957;&#953;&#945;,
&#946;&#961;&#959;&#967;&#941;&#962; &#954;&#945;&#953;
&#952;&#965;&#949;&#955;&#955;&#974;&#948;&#949;&#953;&#962;
&#940;&#957;&#949;&#956;&#959;&#953;
&#963;&#965;&#957;&#952;&#941;&#964;&#959;&#965;&#957;
&#964;&#959;
mb_strtoupper: &#935;&#921;&#908;&#925;&#921;&#913;,
&#914;&#929;&#927;&#935;&#904;&#931; &#922;&#913;&#921;
&#920;&#933;&#917;&#923;&#923;&#911;&#916;&#917;&#921;&#931;
&#902;&#925;&#917;&#924;&#927;&#921;
&#931;&#933;&#925;&#920;&#904;&#932;&#927;&#933;&#925;
&#932;&#927;
mb_convert_case (upper): &#935;&#921;&#908;&#925;&#921;&#913;,
&#914;&#929;&#927;&#935;&#904;&#931; &#922;&#913;&#921;
&#920;&#933;&#917;&#923;&#923;&#911;&#916;&#917;&#921;&#931;
&#902;&#925;&#917;&#924;&#927;&#921; 
&#931;&#933;&#925;&#920;&#904;&#932;&#927;&#933;&#925;
&#932;&#927;
mb_strtolower: &#967;&#953;&#972;&#957;&#953;&#945;,
&#946;&#961;&#959;&#967;&#941;&#963; &#954;&#945;&#953;
&#952;&#965;&#949;&#955;&#955;&#974;&#948;&#949;&#953;&#963;
&#940;&#957;&#949;&#956;&#959;&#953;
&#963;&#965;&#957;&#952;&#941;&#964;&#959;&#965;&#957;
&#964;&#959;
mb_convert_case (lower): &#967;&#953;&#972;&#957;&#953;&#945;,
&#946;&#961;&#959;&#967;&#941;&#963; &#954;&#945;&#953;
&#952;&#965;&#949;&#955;&#955;&#974;&#948;&#949;&#953;&#963;
&#940;&#957;&#949;&#956;&#959;&#953; 
&#963;&#965;&#957;&#952;&#941;&#964;&#959;&#965;&#957;
&#964;&#959;

And this is quite correct..

------------------------------------------------------------------------

[2009-05-05 11:37:26] fsb at thefsb dot org

in both test scripts i provided yesterday, the character set is unicode

and the encoding is utf-8.

in the short test script that i provided 4 May 7:02pm UTC, there is
only 
one short Hangul test string and no Greek, as you said.

in the longer test script i provided at 4 May 5:00pm UTC, several 
alphabets are used including Greek, Cyrillic, Hebrew, Arabic, Thai, 
Kanji, ...

in case it makes life easier for you, i put the longer test script on a

web server: http://tomworster.net/test.php.gz 
it's only 1kbyte.

------------------------------------------------------------------------

[2009-05-05 02:02:39] jani@php.net

One last question: What is the charset you used? I don't see any greek

chars anywhere.. ;)

------------------------------------------------------------------------

[2009-05-04 19:02:43] fsb at thefsb dot org

<?php
  $s = '이며 세계';
  print(phpversion() . "\n");
  print("1: $s\n");
  print('2: '. ($s = mb_strtoupper($s)) . "\n");
  print('3'. ($s = mb_convert_case($s, MB_CASE_UPPER, "UTF-8")) . 
"\n");
  print('4: '. ($s = mb_strtolower($s)) . "\n");
  print('5: '. ($s = mb_convert_case($s, MB_CASE_LOWER, "UTF-8")) . 
"\n");
?>

 ./php -f test2.php 
5.2.10-dev
1: 이며 세계
2: ̝?˩? ̄?ʳ?
3̝˩ ̄ʳ
4: ?? ??
5:  

expected output:
1: 이며 세계
2: 이며 세계
3: 이며 세계
4: 이며 세계
5: 이며 세계

------------------------------------------------------------------------

[2009-05-04 18:46:54] jani@php.net

Please provide a bit shorter example script. Or does the bug only
appear 
with such long strings..?

------------------------------------------------------------------------

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the rest of the comments, please view the bug report online at
    http://bugs.php.net/47742

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