/**
* Calling `next` when iterator is not in a valid state is harmless.
*
* @link http://php.net/manual/en/iterator.next.php
* @return void
*/
function next()
{
parent::next();
$this->i++;
}
/**
* Calling `next` when iterator is not in a valid state is harmless.
*
* @link http://php.net/manual/en/iterator.next.php
* @return void
*/
function next()
{
parent::next();
$this->i++;
}