(PHP 5 >= 5.1.0, PHP 7) Get the current element value

(PHP 5 >= 5.1.0, PHP 7) Seek to the given position

(PHP 5 >= 5.1.0, PHP 7) Return the current position

(PHP 5 >= 5.1.0, PHP 7) Get current key public

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

(PHP 5, PHP 7) Rewind the DirectoryIterator back to the start

(PHP 5 >= 5.1.0, PHP 7) The next() method

(PHP 5, PHP 7) Determine if current DirectoryIterator item can be read

(PHP 5 >= 5.1.0, PHP 7) Check whether the inner iterator's current element has children

(PHP 5, PHP 7) Return file name of current DirectoryIterator item.