ID: 29865
Comment by: cmoore at getzeroedin dot com
Reported By: [EMAIL PROTECTED]
Status: Open
Bug Type: Strings related
Operating System: N/A
PHP Version: 5CVS-2004-08-27 (dev)
New Comment:
Regarding the array-related comment, disregard. My problem appears to
have been with the ODBC functions truncating the long string.
Switching to MySQL functions fixed that.
Previous Comments:
------------------------------------------------------------------------
[2004-09-07 03:21:45] cmoore at getzeroedin dot com
I am seeing a similar problem with serializing and unserializing
two-dimensional arrays on 4.3.8. When the array reaches a certain
size, it appears to get serialized (although I'm not looking at a hex
dump), but the unserialize function fails. When the array is small it
appears to work fine.
Basically I'm using serialization to manage web page state
$array_page[]=$_SERVER['PHP_SELF'];
$array_requests[]= $_REQUEST;
$new_state = array('page' => $array_page, 'reqests' => $_REQUEST);
$serial_state = serialize($new_state);
Then I store $serial_state into a MySQL text column. Once the first
dimension of the array grows to about 9 elements, the unserialize
returns false.
------------------------------------------------------------------------
[2004-08-27 13:37:32] [EMAIL PROTECTED]
Description:
------------
Using serialize() with a class produces invalid output.
Reproduce code:
---------------
I haven't had a chance to properly investigate why this particular code
causes a problem, but Derick seemed ontop of it already.
<?php
class cr {
private $priv_member;
function cr($val)
{
$this->priv_member = $val;
}
function comp_func_cr($a, $b)
{
if ($a->priv_member === $b->priv_member) return 0;
return ($a->priv_member > $b->priv_member)? 1:-1;
}
function comp_func_key($a, $b)
{
if ($a === $b) return 0;
return ($a > $b)? 1:-1;
}
}
$a = array("0.1" => new cr(9), "0.5" => new cr(12), 0 => new cr(23),
1=> new cr(4), 2 => new cr(-15),);
$b = array("0.2" => new cr(9), "0.5" => new cr(22), 0 => new cr(3), 1=>
new cr(4), 2 => new cr(-15),);
$result = array_udiff_uassoc($a, $b, array("cr", "comp_func_cr"),
array("cr", "comp_func_key"));
$foo = serialize($result);
echo $foo;
?>
Actual result:
--------------
0000 61 3a 33 3a 7b 73 3a 33 3a 22 30 2e 31 22 3b 4f a:3:{s:3
:"0.1";O
0010 3a 32 3a 22 63 72 22 3a 31 3a 7b 73 3a 31 35 3a :2:"cr":
1:{s:15:
0020 22 00 63 72 00 70 72 69 76 5f 6d 65 6d 62 65 72 ".cr.pri
v_member
0030 22 3b 69 3a 39 3b 7d 73 3a 33 3a 22 30 2e 35 22 ";i:9;}s
:3:"0.5"
0040 3b 4f 3a 32 3a 22 63 72 22 3a 31 3a 7b 73 3a 31 ;O:2:"cr
":1:{s:1
0050 35 3a 22 00 63 72 00 70 72 69 76 5f 6d 65 6d 62 5:".cr.p
riv_memb
0060 65 72 22 3b 69 3a 31 32 3b 7d 69 3a 30 3b 4f 3a er";i:12
;}i:0;O:
0070 32 3a 22 63 72 22 3a 31 3a 7b 73 3a 31 35 3a 22 2:"cr":1
:{s:15:"
0080 00 63 72 00 70 72 69 76 5f 6d 65 6d 62 65 72 22 .cr.priv
_member"
0090 3b 69 3a 32 33 3b 7d 7d ;i:23;}}
As you can see from this hexdump, there are 0 bytes being produced.
This should not happen.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=29865&edit=1
