From:
Operating system: RHEL 5.6
PHP version: 5.2.17
Package: Scripting Engine problem
Bug Type: Bug
Bug description:foreach changes array values after iterating by reference
followed by foreach
Description:
------------
(I searched through the bug reports and found some foreach pointer issues,
but
none related to this)
If I simply go through an array with a referenced value like so:
foreach ($array as &$value) { }
And then go through it again, not referenced, like so:
foreach ($array as $value) { }
Both times using the same variable $value, then during the second foreach,
the
second to the last value is actually copied over the last value changing
the
array.
If I simply use $value2 there is no issue.
Test script:
---------------
$array = array('aaaaa','bbbbb','ccccc','ddddd','eeeee');
echo '1) '.print_r($array, true).'<br>';
foreach ($array as &$value) { }
echo '2) '.print_r($array, true).'<br> 3) ';
foreach ($array as $key => $value) { echo "[$key] => $value "; }
echo '<br> 4) '.print_r($array, true).'<br>';
Expected result:
----------------
1) Array ( [0] => aaaaa [1] => bbbbb [2] => ccccc [3] => ddddd [4] => eeeee
)
2) Array ( [0] => aaaaa [1] => bbbbb [2] => ccccc [3] => ddddd [4] => eeeee
)
3) [0] => aaaaa [1] => bbbbb [2] => ccccc [3] => ddddd [4] => eeeee
4) Array ( [0] => aaaaa [1] => bbbbb [2] => ccccc [3] => ddddd [4] => eeeee
)
Actual result:
--------------
1) Array ( [0] => aaaaa [1] => bbbbb [2] => ccccc [3] => ddddd [4] => eeeee
)
2) Array ( [0] => aaaaa [1] => bbbbb [2] => ccccc [3] => ddddd [4] => eeeee
)
3) [0] => aaaaa [1] => bbbbb [2] => ccccc [3] => ddddd [4] => ddddd
4) Array ( [0] => aaaaa [1] => bbbbb [2] => ccccc [3] => ddddd [4] => ddddd
)
--
Edit bug report at http://bugs.php.net/bug.php?id=54189&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=54189&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=54189&r=trysnapshot53
Try a snapshot (trunk):
http://bugs.php.net/fix.php?id=54189&r=trysnapshottrunk
Fixed in SVN:
http://bugs.php.net/fix.php?id=54189&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=54189&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=54189&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=54189&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=54189&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=54189&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=54189&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=54189&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=54189&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=54189&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=54189&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54189&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=54189&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=54189&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=54189&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=54189&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=54189&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=54189&r=mysqlcfg
