#28351 [Opn->Fbk]: Arrays and string keya starting with "\x00" character.
| From: | wez@php.net | Date: | Mon, 10 May 2004 16:57:45 +0000 |
| Subject: | #28351 [Opn->Fbk]: Arrays and string keya starting with "\x00" character. | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-59472@lists.php.net to get a copy of this message | ||
ID: 28351
Updated by: wez@php.net
Reported By: risearch at risearch dot org
-Status: Open
+Status: Feedback
Bug Type: Arrays related
Operating System: FreeBSD
PHP Version: Irrelevant
New Comment:
On the server where you encounter the problem, run this script and
paste the output here:
<?php
echo phpversion() . "\n";
foreach(array("\x00D" => 1) as $k => $v) {
echo bin2hex($k);
};
echo "done\n";
?>
Previous Comments:
------------------------------------------------------------------------
[2004-05-10 18:38:52] risearch at risearch dot org
The bug is in arrays. When you iterate through whole array some of the
keys (which has "\x00" as first character) returned by
foreach ($arr as $k => $v)
are incorrect. Empty string is returned in $k.
------------------------------------------------------------------------
[2004-05-10 18:29:57] wez@php.net
What exactly is the bug?
In the arrays or in the contents of the file?
How are you testing it?
(you need to be more specific if you want someone else to be able to
reproduce it)
------------------------------------------------------------------------
[2004-05-10 18:23:25] risearch at risearch dot org
Description:
------------
I use PHP on WinXP and Linux box. Older versions had bug with array
keys starting wuth "\x00" character. Now there is no such bug on my
computers (WinXP/Apache/php-4.3.4-Win32 & php-4.3.6-Win32 or
Linux/Apache 1.3.29/PHP 4.3.4), but some of the script's users complain
that script works on Windows box but does not on server. So, I guess
that some of the versions still have this bug (like
MacOSX/Apache/PHP4.3.2 or BSD/Apache/PHP4.3.4, as reported by users).
Reproduce code:
---------------
$key = "\x00\x00";
$arr[$key] = 1;
$key = "\x00\x44";
$arr[$key] = 2;
$key = "\x44\x44";
$arr[$key] = 3;
$fp = fopen("test","wb");
foreach ($arr as $k => $v) {
fwrite($fp,"'$k' => $v\n");
}
Expected result:
----------------
'\x00\x00' => 1
'\x00D' => 2
'DD' => 3
/* instead of "\x00" zero-character should be written to file */
Actual result:
--------------
'' => 1
'' => 2
'DD' => 3
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=28351&edit=1