ID: 45369
User updated by: thomas dot meike at nic dot at
-Summary: strange behaviour on saving arrays with moved cursors
in Session
Reported By: thomas dot meike at nic dot at
-Status: Feedback
+Status: Open
Bug Type: Arrays related
Operating System: Linux Unix Windows
PHP Version: 5.2.6
New Comment:
>>You should reset() it "manually", I don't see any wrong behaviour
>>here.
yes, resetting it manually is always possible
>>Where in the manual does it say that assiging to the "magic"
>>$_SESSION
>>superglobal the array is reset automatically??
I did not talk abount assignments to $_SESSION!!!
the only thing i wanted to point out here is that now, assigning
$_SESSION-containing array-constructs to any local variable does not
work any more as it did before or lets say it does not correspond to
the following part in the manual:
http://www.php.net/manual/en/language.types.array.php
Array assignment always involves value copying. It also means that the
internal array pointer used by current() and similar functions is reset.
Use the reference operator to copy an array by reference.
Previous Comments:
------------------------------------------------------------------------
[2008-07-01 09:49:12] [EMAIL PROTECTED]
You should reset() it "manually", I don't see any wrong behaviour here.
Where in the manual does it say that assiging to the "magic" $_SESSION
superglobal the array is reset automatically??
------------------------------------------------------------------------
[2008-06-26 15:31:50] thomas dot meike at nic dot at
Description:
------------
you define an array
step through ONLY SOME elements using list-each structure
stepping through you perform some changes on data
finishing the while-structure the array is saved in session
let's say, somewhere else in your businesslogic you need these session
data once more:
you initiate a variable with the recently saved session array
the PROBLEM now: the variable is initiated with the array NOT RESETTED
as defined in documentation an array assigned to a variable has to be
resetted
the problem exists also with php version 5.2.5
Reproduce code:
---------------
session_start();
$arrL =
array("test1","test2","test3","test4","test5","test6","test7","test8","test9","test10");
if(!isset($_SESSION['DATA'])){
$_SESSION['DATA']=$arrL;
}
$counter = 3;
$arrSessData = $_SESSION['DATA'];
while((list($index, $value) = each($arrSessData)) &&
($counter > 0)
) {
$arrSessData[$index] = '_test_' . $value;
$counter--;
}
//store changes in session
$_SESSION['DATA']=$arrSessData;
//somewhere else within the businesslogic, init local
variable and
step through
$arrSessDataProc = $_SESSION['DATA'];
while((list($index, $value) = each($arrSessDataProc)) ){
echo "<br>" . $index . ' ' . $value;
}
Expected result:
----------------
0 _test_test1
1 _test_test2
2 _test_test3
3 test4
4 test5
5 test6
6 test7
7 test8
8 test9
9 test10
Actual result:
--------------
4 test5
5 test6
6 test7
7 test8
8 test9
9 test10
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/?id=45369&edit=1
