From:             kdmtr at yahoo dot com
Operating system: Win32, Unix
PHP version:      5.1.2
PHP Bug Type:     Feature/Change Request
Bug description:  foreach strange behaviour

Description:
------------
foreach seems to run in different ways when called globally and from a
function. As it can be understood from the documentation, foreach
shouldn't touch an original array and operate with its copy instead. But
at least, one could expect its behaviour to be similar for the 2 cases
described in code.

Reproduce code:
---------------
$array = array(1, 2);

function test() {
    global $array;
    foreach ($array as $a) foreach ($array as $b) echo "$a $b\n";
}

foreach ($array as $a) foreach ($array as $b) echo "$a $b\n";
echo "---\n";
test();

Expected result:
----------------
1 1
1 2
2 1
2 2
---
1 1
1 2
2 1
2 2

Actual result:
--------------
1 1
1 2
2 1
2 2
---
1 1
1 2


-- 
Edit bug report at http://bugs.php.net/?id=36070&edit=1
-- 
Try a CVS snapshot (PHP 4.4): 
http://bugs.php.net/fix.php?id=36070&r=trysnapshot44
Try a CVS snapshot (PHP 5.1): 
http://bugs.php.net/fix.php?id=36070&r=trysnapshot51
Try a CVS snapshot (PHP 6.0): 
http://bugs.php.net/fix.php?id=36070&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=36070&r=fixedcvs
Fixed in release:             
http://bugs.php.net/fix.php?id=36070&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=36070&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=36070&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=36070&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=36070&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=36070&r=notwrong
Not enough info:              
http://bugs.php.net/fix.php?id=36070&r=notenoughinfo
Submitted twice:              
http://bugs.php.net/fix.php?id=36070&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=36070&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=36070&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=36070&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=36070&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=36070&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=36070&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=36070&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=36070&r=mysqlcfg

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