#24486 [Fbk->NoF]: strange behaviour with references
ID: 24486
Updated by: sniper@php.net
Reported By: bs@php.net
-Status: Feedback
+Status: No Feedback
Bug Type: Scripting Engine problem
Operating System: Linux
PHP Version: 4.3.2
New Comment:
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Open". Thank you.
Previous Comments:
------------------------------------------------------------------------
[2003-07-03 14:45:01] sniper@php.net
And you know that foreach() operates with a copy of the original
array..? And this reference thing is problem..why?
------------------------------------------------------------------------
[2003-07-03 11:19:53] bs@php.net
Description:
------------
we just detected a strange behaviour with references and foreach:
after the foreach() is done in the sample code the & disappear in the
var_dump for the first two elements, the third is of course still a
valid reference because $row exists
i tried to reproduce that effect in different ways but it only happens
when using a foreach
Reproduce code:
---------------
<pre><?php
$arr = array(1, 2, 3);
for ($i = 0; $i < count($arr); $i++) {
$row =& $arr[$i];
$row = $row * $row;
}
var_dump($arr);
reset ($arr);
while (list(, $value) = each ($arr))
echo "value: $value\n";
var_dump($arr);
foreach($arr AS $value)
echo "value: $value\n";
var_dump($arr);
?>
Actual result:
--------------
array(3) {
[0]=>
&int(1)
[1]=>
&int(4)
[2]=>
&int(9)
}
value: 1
value: 4
value: 9
array(3) {
[0]=>
&int(1)
[1]=>
&int(4)
[2]=>
&int(9)
}
value: 1
value: 4
value: 9
array(3) {
[0]=>
int(1)
[1]=>
int(4)
[2]=>
&int(9)
}
------------------------------------------------------------------------
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Thread (3 messages)