(PHP 5 >= 5.1.0, PHP 7) Gets information about the file

(PHP 5 >= 5.1.2, PHP 7) Gets the path to the file

(PHP 5 >= 5.1.0, PHP 7) Returns the index at which the iterator currently is

(PHP 5 >= 5.1.2, PHP 7) Return all registered __autoload() functions

(PHP 5 >= 5.3.0, PHP 7) Inserts an element in the queue by sifting it up.

(PHP 5 >= 5.1.0, PHP 7) Count elements of an object

(PHP 5 >= 5.1.2, PHP 7) Gets an SplFileInfo object for the file

(PHP 5, PHP 7) Access the current key public

(PHP 5 >= 5.1.0, PHP 7) Truncates the file to a given length

(PHP 5 >= 5.3.0, PHP 7) Associates data to an object in the storage