note 89129 added to function.iterator-count

Be careful of thinking of iterators and arrays as completely analogous in your PHP code. iterator_count will NOT return your iterator to its previous state after looping through it for the count. Any iterator implementation that also implements Countable::count isn't required to do so either. This is clearest in example form: <?php $array = array( 1 => 'foo', 2 => 'bar' ); foreach ($array as $key => $value) { echo "$key: $value (", count($array), ")\n"; } $iterator = new ArrayIterator($array); foreach ($iterator as $key => $value) { echo "$key: $value (", iterator_count($iterator), ")\n"; } ?> outputs: 1: foo (2) 2: bar (2) 1: foo (2) Notice that because of how iterator_count works we never see the second iterator value because the next call to then Iterator::valid() implementation returns false (its at the end of the iterator). ---- Server IP: 209.41.74.194 Probable Submitter: 216.169.171.3 ---- Manual Page -- http://www.php.net/manual/en/function.iterator-count.php Edit -- https://master.php.net/note/edit/89129 Del: integrated -- https://master.php.net/note/delete/89129/integrated Del: useless -- https://master.php.net/note/delete/89129/useless Del: bad code -- https://master.php.net/note/delete/89129/bad+code Del: spam -- https://master.php.net/note/delete/89129/spam Del: non-english -- https://master.php.net/note/delete/89129/non-english Del: in docs -- https://master.php.net/note/delete/89129/in+docs Del: other reasons-- https://master.php.net/note/delete/89129 Reject -- https://master.php.net/note/reject/89129 Search -- https://master.php.net/manage/user-notes.php