Bug #54358 [Opn->Asn]: Closure, use and reference

[pajoye]

Edit report at http://bugs.php.net/bug.php?id=54358&edit=1

 ID:                 54358
 Updated by:         paj...@php.net
 Reported by:        frederic dot hardy at mageekbox dot net
 Summary:            Closure, use and reference
-Status:             Open
+Status:             Assigned
 Type:               Bug
 Package:            Scripting Engine problem
 PHP Version:        5.3.6
-Assigned To:        
+Assigned To:        dmitry
 Block user comment: N
 Private report:     N



Previous Comments:
------------------------------------------------------------------------
[2011-03-23 11:03:37] frederic dot hardy at mageekbox dot net

Trunck version is not affected by this bug.

------------------------------------------------------------------------
[2011-03-23 10:56:19] frederic dot hardy at mageekbox dot net

Description:
------------
When the same variable is 'used' by one closure by reference, and an
another closure 'uses' the same variable by value several time, the
variable value is corrupted.



This bub seems to be related to http://bugs.php.net/53958 which is
closed since PHP 5.3.6.

Test script:
---------------
<?php



class asserter

{

        public function call($function) {}

}



$asserter = new asserter();



$closure = function() use ($asserter, & $function) {
$asserter->call($function = uniqid()); };



try

{

        $closure();

}

catch (\exception $exception)

{

}



var_dump($function);



$function = 'md5';



$closure = function() use ($asserter, $function) {
$asserter->call($function); };



try

{

        $closure();

}

catch (\exception $exception)

{

}



var_dump($function);



$closure = function() use ($asserter, $function) {
$asserter->call($function); };



try

{

        $closure();

}

catch (\exception $exception) {}



var_dump($function);



?>

Expected result:
----------------
string(13) "4d89c1bc241ff"

string(3) "md5"

string(3) "md5"

Actual result:
--------------
string(13) "4d89c1bc241ff"

string(3) "md5"

string(3) �a"


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



-- 
Edit this bug report at http://bugs.php.net/bug.php?id=54358&edit=1