(PHP 5, PHP 7) Return the string representation of the current element

(PHP 5, PHP 7) Return the current element public

(PHP 5, PHP 7) Return the key for the current element

(PHP 5 >= 5.2.2, PHP 7) The number of elements in the iterator

(PHP 5 >= 5.2.0, PHP 7) The setFlags purpose

(PHP 5, PHP 7) Construct a new CachingIterator object for the iterator.

(PHP 5 >= 5.2.0, PHP 7) Retrieve the contents of the cache

(PHP 5 >= 5.2.0, PHP 7) The offsetUnset purpose

(PHP 5, PHP 7) Check whether the inner iterator has a valid next element

(PHP 5, PHP 7) Rewind the iterator public void