(PHP 5 >= 5.1.0, PHP 7) Construct a new file object.

(PHP 5 >= 5.1.0, PHP 7) Get sub path public

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

(PHP 5, PHP 7) Check whether the current element is valid

(PHP 5 >= 5.1.3, PHP 7) Construct a RecursiveIteratorIterator

(PHP 5 >= 5.3.0, PHP 7) Gets the size of the array

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

(PHP 5 >= 5.3.0, PHP 7) Rewind iterator public

(PHP 5 >= 5.3.0, PHP 7) Constructs a new doubly linked list

(PHP 5, PHP 7) Access the current element value