Edit report at https://bugs.php.net/bug.php?id=48272&edit=1

 ID:                 48272
 Comment by:         strauchdieb at gmx dot de
 Reported by:        gma625 at msn dot com
 Summary:            function valid , next, current ..from subclass of
                     FilterIterator return false
 Status:             No Feedback
 Type:               Bug
 Package:            SPL related
 Operating System:   windows xp2
 PHP Version:        5.2.6
 Block user comment: N
 Private report:     N

 New Comment:

This bug still exists. See here for a newer bug report and a workaround: 
https://bugs.php.net/bug.php?id=52560


Previous Comments:
------------------------------------------------------------------------
[2009-05-22 01:00:02] php-bugs at lists dot php dot net

No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".

------------------------------------------------------------------------
[2009-05-14 12:38:19] j...@php.net

Please try using this CVS snapshot:

  http://snaps.php.net/php5.2-latest.tar.gz
 
For Windows:

  http://windows.php.net/snapshots/



------------------------------------------------------------------------
[2009-05-14 03:44:17] gma625 at msn dot com

hello, I'm the reporter of this bug, I'm sorry for making a typing mistake 
below, I just get up to fix this typing mistake , But I don't know how to 
achieve , so I post a new comment here, sorry for the inconvience again . 

mistake:

and the result is bool(true), it's very strange to get this while we
$cull->valid() it return false(true)

fix: 


and the result is bool(true), it's very strange to get this while we
$cull->valid() it return bool(false)

------------------------------------------------------------------------
[2009-05-14 03:39:08] gma625 at msn dot com

Description:
------------
When extends a class with FilterIterator, the valid ,current,key, next 
functions can't work, until you override your function with the following codes
public function valid() {
     $this->getInnerIterator()->valid();  
}

btw, my php works version is 5.2.6, I can't found this version in the select 
list , so I selected 5.2.9

Reproduce code:
---------------
error_reporting ( E_ALL | E_STRICT );
$array = array ('koala', 'kangaroo', 'wombat', 'wallaby', 'emu', 'NZ' => 
'kiwi', 'kookaburra', 'platypus' );

class CullingIterator extends FilterIterator {
        
        public function __construct(Iterator $it) {
                parent::__construct ( $it );
        }
        
        function accept() {
                $ittmp = $this->getInnerIterator ();
                if ($ittmp->current () == 'koala') {
                        return false;
                }
                return true;
        }
}

$cull = new CullingIterator ( new ArrayIterator ( $array ) );

try {
        while ( $cull->valid () ) {
                echo $cull->current ();
                $cull->next ();
        }
} catch ( Exception $e ) {
        $e->getTraceAsString ();
}

Expected result:
----------------
print out the array result as following
kangaroowombatwallabyemukiwikookaburraplatypus


Actual result:
--------------
print nothing, becuase when we call $cull->valid() will return false

additional information , I've also tracked this problem by the following code, 

$cull = new CullingIterator ( new ArrayIterator ( $array ) );

$it = $cull->getInnerIterator();

var_dump( $it->valid() );

and the result is bool(true), it's very strange to get this while we 
$cull->valid() it return false(true)


------------------------------------------------------------------------



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