On Mon, Mar 24, 2014 at 4:37 PM, Peter Oberst <peter.oberst0@xxxxxxxxx>wrote:
> Hi,
>
> I want to use an Iterator that returns an the inner iterator, with an
> additional FilterIterator applied.
> The returned iterator should be separated from my inner iterator, to
> avoid errors like 'ArrayIterator::next(): Array was modified outside'.
> To avoid this, I think it might be the best to simply clone the inner
> iterator.
>
> Unfortunatly, if the innerIterator is an FilterIterator, so cloning
> will throw an exception:
> PHP Fatal error: Call to undefined method ArrayIterator::getIterator()
>
> Is there a good reason why i can't clone a FilterIterator?
>
> Testcase:
> <?php
>
> class MyIterator extends FilterIterator {
> public function accept() {
> return true;
> }
> }
>
> $arr = new ArrayObject(array());
> $it1 = new MyIterator($arr->getIterator());
> $it2 = $it1->getIterator();
>
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>
>
Not sure why you came to that conclusion, but the error you are getting is
because MyIterator ($it1) extends FilterIterator extends IteratorIterator
implements OuterIterator implements OuterIterator OuterIterator extends
Iterator extends Traversable, none which have a getIterator() method
implemented.
Sorry for duplicate email, forgot to reply all.
