Re: Clone FilterIterator/IteratorIterator?

Oh sorry, it's too late and too mutch fiddeling with the testcase. Corrected testcase: <?php class MyIterator extends FilterIterator { public function accept() { return true; } } $arr = new ArrayObject(array()); $it1 = new MyIterator($arr->getIterator()); $it2 = clone $it1; Throws Fatal error: Trying to clone an uncloneable object of class MyIterator 2014-03-24 21:48 GMT+01:00 Aziz Saleh <azizsaleh@gmail.com>: > > > > On Mon, Mar 24, 2014 at 4:37 PM, Peter Oberst <peter.oberst0@gmail.com> > 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 = $it1->getIterator(); >> >> -- >> PHP General Mailing List (http://www.php.net/) >> To unsubscribe, visit: http://www.php.net/unsub.php >> > > Not sure why you came to that conclusion, but the error you are getting is > because MyIterator ($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. >