Bug #48272 [Com]: function valid , next, current ..from subclass of FilterIterator return false

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] jani@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) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=48272&edit=1