From: mikolaj dot kopras at vexillium dot org
Operating system: Ubuntu 2.6.38-15-generic x86_64
PHP version: 5.4.14
Package: SPL related
Bug Type: Bug
Bug description:MultipleIterator and its not scalar keys
Description:
------------
The idea of MultipleIterator is great, however its key() method
implementation is
somehow invalid. Documentation of Iterator::key clearly stands, that key
have to
be a scalar or NULL, but MultipleIterator returns an array which leads to
problems.
First problem is inability to use $key => $val syntax in foreach
Second problem is inability to use MultipleIterator with other iterators,
e.g.
with InfiniteIterator.
MultipleIterator could just compute key by imploding keys from all attached
iterators using user specified separator. I've tried this localy and worked
perfectly.
If that's the way to go, I'll be happy to help with patch.
Test script:
---------------
$multiIter = new MultipleIterator();
$multiIter->attachIterator(new ArrayIterator(array('a')));
$multiIter->attachIterator(new ArrayIterator(array('b')));
$infinityIter = new InfiniteIterator($multiIter);
foreach(new LimitIterator($infinityIter, 0, 2) as $item) {
echo $item[0] . $item[1];
}
Expected result:
----------------
I expect "abab" to be printed
Actual result:
--------------
Warning: Illegal type returned from MultipleIterator::key() in
/some/path/phptests/iterators/InfinityIterator.php on line 8
ab
Warning: Illegal type returned from MultipleIterator::key() in
/some/path/phptests/iterators/InfinityIterator.php on line 8
ab
Warning: Illegal type returned from MultipleIterator::key() in
/some/path/phptests/iterators/InfinityIterator.php on line 8
--
Edit bug report at https://bugs.php.net/bug.php?id=64643&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=64643&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=64643&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=64643&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=64643&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=64643&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=64643&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=64643&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=64643&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=64643&r=support
Expected behavior: https://bugs.php.net/fix.php?id=64643&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=64643&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=64643&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=64643&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=64643&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=64643&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=64643&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=64643&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=64643&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=64643&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=64643&r=mysqlcfg
