(PHP 5 >= 5.1.0, PHP 7) Move the iterator forward

(PHP 5 >= 5.1.0, PHP 7) Returns an iterator for the current entry if it is an

(PHP 5 >= 5.4.0, PHP 7) Create a filtered iterator from another iterator

(PHP 5 >= 5.3.0, PHP 7) Sets the mode of iteration

(PHP 5 >= 5.1.0, PHP 7) Begin children public

(PHP 5 >= 5.1.0, PHP 7) Returns an iterator for the current entry if it is a directory

(PHP 5 >= 5.2.2, PHP 7) Gets the base name of the file

(PHP 5 >= 5.3.0, PHP 7) Return current node index

(PHP 5 >= 5.4.0, PHP 7) Unserializes the storage

(PHP 5 >= 5.3.0, PHP 7) Returns a PHP array from the fixed array