Edit report at https://bugs.php.net/bug.php?id=62123&edit=1
ID: 62123
Comment by: ni...@php.net
Reported by: a dot protaskin at gmail dot com
Summary: Foreach changes the internal pointer of the array
strangely
Status: Open
Type: Bug
Package: Arrays related
Operating System: Linux
PHP Version: 5.4.3
Block user comment: N
Private report: N
New Comment:
See http://stackoverflow.com/a/8263425/385378 for an explanation.
Previous Comments:
------------------------------------------------------------------------
[2012-05-23 13:23:38] a dot protaskin at gmail dot com
Description:
------------
Traversing the array changes once the internal pointer by 1.
Traversing the array by link changes the internal pointer just as with each().
Test script:
---------------
<?php
$array = [0, 1, 2];
while (each($array)) {
var_dump(key($array));
}
reset($array);
echo "----\n";
foreach ($array as $elem) {
var_dump(key($array));
}
reset($array);
echo "----\n";
$array2 = &$array;
foreach ($array2 as $elem) {
var_dump(key($array));
}
Expected result:
----------------
int(1)
int(2)
NULL
----
int(1)
int(2)
NULL
----
int(1)
int(2)
NULL
Actual result:
--------------
int(1)
int(2)
NULL
----
int(1)
int(1)
int(1)
----
int(1)
int(2)
NULL
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=62123&edit=1
