From:             oliver at teqneers dot de
Operating system: Suse 9.0
PHP version:      4.3.8
PHP Bug Type:     Arrays related
Bug description:  unset deletes array entries and its copied entries

Description:
------------
When I copy an array with a normal "=" the copy is not a real copy, but a
reference to it. This only seems to happen to cascaded arrays.
When an entry of the original array is unset, the copied entry will be
unset as well.

Reproduce code:
---------------
$arr    = array( 'in' => array(1,2,3) );
$copy   = $arr;

print_r($copy);
unset( $arr['in'][1] );
print_r($copy);


Expected result:
----------------
Array
(
    [in] => Array
        (
            [0] => 1
            [1] => 2
            [2] => 3
        )

)

Array
(
    [in] => Array
        (
            [0] => 1
            [1] => 2
            [2] => 3
        )

)



Actual result:
--------------
Array
(
    [in] => Array
        (
            [0] => 1
            [1] => 2
            [2] => 3
        )

)

Array
(
    [in] => Array
        (
            [0] => 1
            [2] => 3
        )

)



-- 
Edit bug report at http://bugs.php.net/?id=30179&edit=1
-- 
Try a CVS snapshot (php4):   http://bugs.php.net/fix.php?id=30179&r=trysnapshot4
Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=30179&r=trysnapshot50
Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=30179&r=trysnapshot51
Fixed in CVS:                http://bugs.php.net/fix.php?id=30179&r=fixedcvs
Fixed in release:            http://bugs.php.net/fix.php?id=30179&r=alreadyfixed
Need backtrace:              http://bugs.php.net/fix.php?id=30179&r=needtrace
Need Reproduce Script:       http://bugs.php.net/fix.php?id=30179&r=needscript
Try newer version:           http://bugs.php.net/fix.php?id=30179&r=oldversion
Not developer issue:         http://bugs.php.net/fix.php?id=30179&r=support
Expected behavior:           http://bugs.php.net/fix.php?id=30179&r=notwrong
Not enough info:             http://bugs.php.net/fix.php?id=30179&r=notenoughinfo
Submitted twice:             http://bugs.php.net/fix.php?id=30179&r=submittedtwice
register_globals:            http://bugs.php.net/fix.php?id=30179&r=globals
PHP 3 support discontinued:  http://bugs.php.net/fix.php?id=30179&r=php3
Daylight Savings:            http://bugs.php.net/fix.php?id=30179&r=dst
IIS Stability:               http://bugs.php.net/fix.php?id=30179&r=isapi
Install GNU Sed:             http://bugs.php.net/fix.php?id=30179&r=gnused
Floating point limitations:  http://bugs.php.net/fix.php?id=30179&r=float
MySQL Configuration Error:   http://bugs.php.net/fix.php?id=30179&r=mysqlcfg

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