(PHP 5 >= 5.3.0, PHP 7) Detaches an iterator

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

(PHP 5 >= 5.2.2, PHP 7) Gets the target of a link

(PHP 5 >= 5.3.0, PHP 7) Adds all objects from another storage

(PHP 5 >= 5.3.6, PHP 7) Gets the file extension

(PHP 5 >= 5.1.0, PHP 7) Alias of

(PHP 5 >= 5.1.0, PHP 7) Returns whether current entry is an array or an object.

(PHP 5 >= 5.3.0, PHP 7) Gets the number of attached iterator instances

(PHP 5 >= 5.3.0, PHP 7) Rewind iterator back to the start (no-op)

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