Edit report at http://bugs.php.net/bug.php?id=51715&edit=1
ID: 51715
Updated by: fel...@php.net
Reported by: ninzya at inbox dot lv
Summary: Lambda's definition breaks references when using use()
clause.
-Status: Open
+Status: Bogus
Type: Bug
Package: Scripting Engine problem
Operating System: Any
PHP Version: 5.3.2
New Comment:
Duplicated of #50230
Previous Comments:
------------------------------------------------------------------------
[2010-05-01 13:35:20] ninzya at inbox dot lv
Sorry, have forgotten that i have already filed that bug report a while
ago (http://bugs.php.net/bug.php?id=50230). I use closures a lot and
would like to get this bug fixed as soon as possible.
------------------------------------------------------------------------
[2010-05-01 13:30:19] ninzya at inbox dot lv
If you change lambda definition from
function() use( $y){};
to
function() use( &$y){};
then script outputs expected result:
[...]# cat test.php
<?php
$x =null;
// reference $x
$y =&$x;
// focus on this (lambda def.)
function() use( &$y){};
// update value of $x via reference.
$y =10;
// No bug, since ref. was not broken
var_dump( $x);
?>
[...]# php -v
PHP 5.3.2 (cli) (built: Mar 4 2010 22:12:20)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
[...]# php test.php
int(10)
------------------------------------------------------------------------
[2010-05-01 13:27:26] ninzya at inbox dot lv
Description:
------------
See test script.
Test script:
---------------
[...]# cat test.php
<?php
$x =null;
// reference $x
$y =&$x;
// focus on this (lambda def.)
function() use( $y){};
// update value of $x via reference.
$y =10;
// oops, bug, outputs NULL since lambda def. breaks
// the reference.
var_dump( $x);
?>
[...]# php -v
PHP 5.3.2 (cli) (built: Mar 4 2010 22:12:20)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
[...]# php test.php
NULL
Expected result:
----------------
int(10)
Actual result:
--------------
NULL
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/bug.php?id=51715&edit=1
