#44720 [Opn->Bgs]: Encoding $_SESSION crashes with recusive arrays

From: Date: Mon, 14 Apr 2008 17:47:46 +0000
Subject: #44720 [Opn->Bgs]: Encoding $_SESSION crashes with recusive arrays
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-124228@lists.php.net to get a copy of this message 
 ID:               44720
 Updated by:       jani@php.net
 Reported By:      antphill at uk dot ibm dot com
-Status:           Open
+Status:           Bogus
 Bug Type:         Session related
 Operating System: Linux
 PHP Version:      5.2.6RC5
 New Comment:

session_register() is deprecated. DO NOT USE. Ever. RTFM about
$_SESSION.


Previous Comments:
------------------------------------------------------------------------

[2008-04-14 16:04:14] antphill at uk dot ibm dot com

Description:
------------
If I add create a global variable array which contains recursive
entries it causes PHP to crash when I register it by calling
session_register. This appears to be because the PS_ENCODE_LOOP macro
does not check for recursion.


Reproduce code:
---------------
<?php

$array = array();

$array["foo"] = NULL;
$array["bar"] = NULL;
$array["guff"] = NULL;
$array["blah"] = &$array;

var_dump(session_start());
var_dump(session_register($array));
echo "Done!\n";
?>


Expected result:
----------------
Perhaps we should check for recusion rather like the JSON extension
does (see json_encode_array() in JSON.c)?

Actual result:
--------------
bool(true)



------------------------------------------------------------------------


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