[PHP-DEV] Bug #11617: crash when restoring references

[zork]

From:             [EMAIL PROTECTED]
Operating system: Linux 2.2.16 (Cobalt Raq4)
PHP version:      4.0 Latest CVS (2001-06-22)
PHP Bug Type:     *Session related
Bug description:  crash when restoring references

There is still problem in serialize/unserialize mechanism  used to restore session 
variables(after closing #8676 bug which was supoused to correct the problem). Here is 
simplest script I can produce that does apache segfault on my machine:

<?
class Cscreen {
        var $page;
        var $frames;

        function Cscreen() {
                $this -> frames = array();
        }
};

class CError_handler {
        var $msg_error;
        
        function CError_handler() {
                $this -> msg_error = new CMessage();
        }
};

class CConnection_Table {
        var $data;
        
        function CConnection_table() {
                $this -> data = array();
        }
        
        function mconnect($message,&$object,$method) {
                $data[0] = &$object;
                $data[1] = $method;
                $this -> data[$message -> msg_id][] = $data;
        }
};

class CMessage {
        var $data;
        var $msg_id;
        
        function CMessage($data = 0) {
                global $__CMSGID_NEXT;
                $this -> msg_id = $__CMSGID_NEXT++;
                $this -> data = $data;
        }
};

function MCONNECT(&$message,&$obj_name,$method_name) {
        global $__connection_table;
        $__connection_table -> mconnect($message,$obj_name,$method_name);
};

session_start();
session_destroy();
$__connection_table = new CConnection_table;
session_register("__connection_table");

$screen = new Cscreen();
session_register("screen");

$error_handler = new CError_handler($screen);
MCONNECT($error_handler -> msg_error,$screen,"fatal_error");
session_register("error_handler");
echo "done";
exit();




-- 
Edit Bug report at: http://bugs.php.net/?id=11617&edit=1



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