Bug #66254 [NEW]: htmlentities does not convert single-byte katakana chars on Shift-JIS

From: Date: Tue, 10 Dec 2013 02:30:46 +0000
Subject: Bug #66254 [NEW]: htmlentities does not convert single-byte katakana chars on Shift-JIS
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-183212@lists.php.net to get a copy of this message 
From:             charles123zelrax456 at yahoo dot com
Operating system: Linux
PHP version:      5.5.7RC1
Package:          mbstring related
Bug Type:         Bug
Bug description:htmlentities does not convert single-byte katakana chars on Shift-JIS

Description:
------------
Japanese katakana characters can be encoded as single-byte especially
when using mobile phones. Most of the Japanese mobile sites use
Shift-JIS encoding. For security purposes, htmlentities is used in all
user inputs. Unfortunately, when single-byte katakana strings encoded in
Shift-JIS are passed in htmlentities, garbage characters are returned.

Test script:
---------------
//make sure that the code as well as the browser settings are encoded
also in Shift-JIS
$txt =
"｡｢｣､･ｦｧｨｩｪｫｬｭｮｯ
ｰｱｲｳｴｵｶｷｸｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞﾟアバ日本語
ＤＯＵＢＬＥＢＹＴＥ SINGLE BYTE<br>";
echo "Original String: " . $txt;
$new_txt = htmlentities($txt, ENT_QUOTES, "SJIS");
echo "<br>Converted String: " . $new_txt;

Actual result:
--------------
Original String:
｡｢｣､･ｦｧｨｩｪｫｬｭｮｯ
ｰｱｲｳｴｵｶｷｸｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞﾟアバ日本語
ＤＯＵＢＬＥＢＹＴＥ SINGLE BYTE

Converted String: ¡¢£¤¥¦§¨©ª«¬­®¯
°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßアバ日本語
ＤＯＵＢＬＥＢＹＴＥ SINGLE BYTE<br>

-- 
Edit bug report at https://bugs.php.net/bug.php?id=66254&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=66254&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=66254&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=66254&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=66254&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=66254&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=66254&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=66254&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=66254&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=66254&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=66254&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=66254&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=66254&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=66254&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=66254&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=66254&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=66254&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=66254&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=66254&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=66254&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=66254&r=mysqlcfg

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