(PHP 5 >= 5.0.0, PHP 7) Returns the value at the specified index

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

(PHP 5 >= 5.3.0, PHP 7) Move to next entry

(PHP 5 >= 5.3.0, PHP 7) Constructs a new fixed array

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

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

(PHP 5 >= 5.3.0, PHP 7) Rewind iterator back to the start

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

(PHP 5 >= 5.5.11, PHP 7) Read from file public

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