Bug #17869: Array sort order broken with more than 256 entries in an associative array?
| From: | adamek at webtrio dot de | Date: | Thu, 20 Jun 2002 08:50:03 +0000 |
| Subject: | Bug #17869: Array sort order broken with more than 256 entries in an associative array? | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-11524@lists.php.net to get a copy of this message | ||
From: adamek@webtrio.de
Operating system: Linux 2.4.16
PHP version: 4.2.1
PHP Bug Type: Arrays related
Bug description: Array sort order broken with more than 256 entries in an associative array?
To reproduce the problem do the following:
1) Read a mysql database table with user names and a double index (UID,
server - both numeric) having about 280 entries:
SELECT UID,Server,Username FROM Users ORDER BY UID,Server
2) Preparing the array: $userlist = array();
3) Filling the array:
$result = mysql_query("SELECT UID,Server,Username FROM Users ORDER BY
UID,Server");
if ($result)
{
while ($q = get_object($result))
{
$userlist[$q->UID."-".$q->Server] = $q->Username."
(".$q->Server.")";
// Debug output just to see that filling happens in the right
alphabetical order of user names
echo $userlist[$q->UID."-".$q->Server]."\n";
}
}
4) Reading the array:
foreach ($userlist as $key => $value)
{
echo $key." = ".$value."\n";
}
you suddenly notice that the array entry no. 256 and 257 appear at the
wrong place (at position count($userlist)-256) - the internal sort order
of the array has changed!
I also tried this with array index names in the form:
[$q->UID.":".$q->Server]
and
[$q->UID.".".$q->Server]
Both with the same wrong result ... arrays read out don't have the same
order as they were filled any more if more than 256 entries are present.
--
Edit bug report at http://bugs.php.net/?id=17869&edit=1
--
Fixed in CVS: http://bugs.php.net/fix.php?id=17869&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=17869&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=17869&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=17869&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=17869&r=support
Expected behavior: http://bugs.php.net/fix.php?id=17869&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=17869&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=17869&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=17869&r=globals