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Bug #22592 Cascading assignments to strings with curly braces broken
Submitted: 2003-03-07 11:40 UTC Modified: 2003-07-24 15:14 UTC
Votes:20
Avg. Score:4.4 ± 0.9
Reproduced:15 of 16 (93.8%)
Same Version:7 (46.7%)
Same OS:8 (53.3%)
From: matteo at beccati dot com Assigned:
Status: Closed Package: Scripting Engine problem
PHP Version: 5.0.0b2-dev OS: *
Private report: No CVE-ID: None
View Developer Edit
 [2003-03-07 11:40 UTC] matteo at beccati dot com 
When using cascading assignments to strings and curly braces, to change characters within strings, only the last character is changed to the right value. Other characters become NUL (0x00).

<?
$wrong = $correct = 'abcdef';

$correct{1} = '*';
$correct{3} = '*';
$correct{5} = '*';

// This produces the 
$wrong{1} = $wrong{3} = $wrong{5} = '*';

echo $correct."\n".$wrong."\n\n";
echo urlencode($correct)."\n"."\n".urlencode($wrong)."\n";

?>


The resulting output is:

a*c*e*
ace*

a%2Ac%2Ae%2A
a%00c%00e%2A


I also tested it on a old PHP 4.2.0-dev, and it gives the same result.

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 [2003-03-07 12:13 UTC] [email protected] 
Happens also with 4.3.2-dev. (from today)
 [2003-03-10 13:35 UTC] [email protected] 
Update version
 [2003-06-16 10:44 UTC] [email protected] 
This bug has been fixed in CVS.

In case this was a PHP problem, 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/.
 
In case this was a documentation problem, the fix will show up soon at
http://www.php.net/manual/.

In case this was a PHP.net website problem, the change will show
up on the PHP.net site and on the mirror sites in short time.
 
Thank you for the report, and for helping us make PHP better.

Fixed in ZE2.
 [2003-06-17 10:51 UTC] [email protected] 
Also fixed in PHP 4.3.3-dev (latest STABLE snapshot..)
 [2003-07-17 17:11 UTC] [email protected] 
Reopen since it leaks now
 [2003-07-18 07:48 UTC] [email protected] 
Doesn't leak in PHP 4.3.3RC2-dev. (only PHP 5)
 [2003-07-24 15:14 UTC] [email protected] 
Marcus, report the leak in separate bug report.
 [2009-09-21 13:32 UTC] [email protected] 
Automatic comment from SVN on behalf of dmitry
Revision: http://svn.php.net/viewvc/?view=revision&revision=288525
Log: Fixed tests/lang/bug22592.phpt
 
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