#40654 [Opn->Bgs]: reference causes foreach to fail proper iteration
| From: | tony2001@php.net | Date: | Tue, 27 Feb 2007 12:30:17 +0000 |
| Subject: | #40654 [Opn->Bgs]: reference causes foreach to fail proper iteration | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-109635@lists.php.net to get a copy of this message | ||
ID: 40654
Updated by: tony2001@php.net
Reported By: saeven at saeven dot net
-Status: Open
+Status: Bogus
Bug Type: Scripting Engine problem
PHP Version: 5.2.1
New Comment:
Duplicate of bug #29992.
Previous Comments:
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[2007-02-27 05:00:30] same at saeven dot net
I'd add that print_r properly displays the constructed array, which
contradicts what foreach displays (which is why I thought this required
filing).
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[2007-02-27 04:44:35] saeven at saeven dot net
Description:
------------
Using a reference to build an array, later causes foreach to fail when
reusing the reference variable name.
The bug is solved by adding unset( $element); before block B, but this
shouldn't be necessary.
Reproduce code:
---------------
// Block A - Build the Array
$a = array( 2 => array( "value" => "a" ),
4 => array( "value" => "b" ),
6 => array( "value" => "c" ) );
$b = array( "orange", "blue", "green" );
foreach( $a as $id => &$element ){
$extra = array();
foreach( $b as $color )
array_push( $extra, $color );
$element += array( 'extra' => $extra );
}
// Block B - Iterate through
foreach( $a as $element )
echo $element["value"].' ';
Expected result:
----------------
a b c
Actual result:
--------------
a b b
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Edit this bug report at http://bugs.php.net/?id=40654&edit=1