#42101 [NEW]: mb_substr error if length = PHP_INT_MAX
| From: | mcorne at yahoo dot com | Date: | Wed, 25 Jul 2007 12:10:28 +0000 |
| Subject: | #42101 [NEW]: mb_substr error if length = PHP_INT_MAX | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-115423@lists.php.net to get a copy of this message | ||
From: mcorne at yahoo dot com
Operating system: RedHat Linux x86-64
PHP version: 5.2.3
PHP Bug Type: mbstring related
Bug description: mb_substr error if length = PHP_INT_MAX
Description:
------------
mb_substr("\x44\xCC\x87", 0, PHP_INT_MAX, 'UTF-8') only captures the first
character on linux 64-bit instead of returning the whole string.
Note that this works fine on Windows XP and Linux 32-bit.
Reproduce code:
---------------
function substring($string, $length)
{
$substr = mb_substr($string, 0, $length , 'UTF-8');
$length = strlen($substr);
$chars = $length? unpack("C{$length}chars", $substr) : array();
$decs = array_map('dechex', $chars);
return array($substr, $decs);
}
$test['string'] = "\x44\xCC\x87";
$test['utf8'] = '\x44\xCC\x87';
$test['unicode'] = '\u0044\u0307';
$test['PHP_INT_MAX'] = PHP_INT_MAX;
$test['php_int_max'] = substring($test['string'], PHP_INT_MAX);
$test['9999'] = substring($test['string'], 9999);
print_r($test);
Expected result:
----------------
Array
(
[string] => Ḋ
[utf8] => \x44\xCC\x87
[unicode] => \u0044\u0307
[PHP_INT_MAX] => 2147483647
[php_int_max] => Array
(
[0] => Ḋ
[1] => Array
(
[chars1] => 44
[chars2] => cc
[chars3] => 87
)
)
[9999] => Array
(
[0] => Ḋ
[1] => Array
(
[chars1] => 44
[chars2] => cc
[chars3] => 87
)
)
)
Actual result:
--------------
Array
(
[string] => Ḋ
[utf8] => \x44\xCC\x87
[unicode] => \u0044\u0307
[PHP_INT_MAX] => 2147483647
[php_int_max] => Array
(
[0] => D
[1] => Array
(
[chars1] => 44
)
)
[9999] => Array
(
[0] => Ḋ
[1] => Array
(
[chars1] => 44
[chars2] => cc
[chars3] => 87
)
)
)
--
Edit bug report at http://bugs.php.net/?id=42101&edit=1
--
Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=42101&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=42101&r=trysnapshot52
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=42101&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=42101&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=42101&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=42101&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=42101&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=42101&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=42101&r=support
Expected behavior: http://bugs.php.net/fix.php?id=42101&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=42101&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=42101&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=42101&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=42101&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=42101&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=42101&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=42101&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=42101&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=42101&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=42101&r=mysqlcfg