Bug #54358 [Asn->Csd]: Closure, use and reference
| From: | dmitry@php.net | Date: | Fri, 08 Apr 2011 10:02:58 +0000 |
| Subject: | Bug #54358 [Asn->Csd]: Closure, use and reference | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-160024@lists.php.net to get a copy of this message | ||
Edit report at http://bugs.php.net/bug.php?id=54358&edit=1
ID: 54358
Updated by: dmitry@php.net
Reported by: frederic dot hardy at mageekbox dot net
Summary: Closure, use and reference
-Status: Assigned
+Status: Closed
Type: Bug
Package: Scripting Engine problem
PHP Version: 5.3.6
Assigned To: dmitry
Block user comment: N
Private report: N
New Comment:
This bug has been fixed in SVN.
Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
Thank you for the report, and for helping us make PHP better.
Previous Comments:
------------------------------------------------------------------------
[2011-04-08 12:02:09] dmitry@php.net
Automatic comment from SVN on behalf of dmitry
Revision: http://svn.php.net/viewvc/?view=revision&revision=310050
Log: - Fixed bug #54358 (Closure, use and reference)
- Fixed bug #54039 (use() of static variables in lambda functions can
break staticness)
------------------------------------------------------------------------
[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