(PHP 5 >= 5.1.0, PHP 7) Constructs an AppendIterator

(PHP 5 >= 5.1.2, PHP 7) Tells if the file is executable

(PHP 5 >= 5.1.0, PHP 7) Sets the behavior flags.

(PHP 5 >= 5.1.2, PHP 7) Gets the owner of the file

(PHP 5 >= 5.3.0, PHP 7) Checks whether an object exists in the storage

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

(PHP 5 >= 5.3.0, PHP 7) Unserialize an ArrayObject

(PHP 5 >= 5.4.0, PHP 7) Return the inner iterator's children contained in a RecursiveCallbackFilterIterator

(PHP 5 >= 5.1.2, PHP 7) Gets the path without filename

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