(PHP 5, PHP 7) Rewind the iterator public void
(PHP 5, PHP 7) Check whether the inner iterator has a valid next element
(PHP 5, PHP 7) Check whether the current element is valid
(PHP 5 >= 5.2.0, PHP 7) The offsetExists purpose
(PHP 5, PHP 7) Move the iterator forward public
(PHP 5 >= 5.2.0, PHP 7) The offsetGet purpose
(PHP 5, PHP 7) Returns the inner iterator public
Page 2 of 2