(PHP 5 >= 5.1.0, PHP 7) Reached end of file

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

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

(PHP 5 >= 5.1.2, PHP 7) Construct a new SplFileInfo object

(PHP 5 >= 5.3.0, PHP 7) Compare elements in order to place them correctly in the heap while sifting up.

(PHP 5 >= 5.1.0, PHP 7) Flushes the output to the file

(PHP 5 >= 5.1.2, PHP 7) Gets file type public

(PHP 5 >= 5.3.0, PHP 7) Dequeues a node from the queue

(PHP 5 >= 5.1.2, PHP 7) Tells if the entry is writable

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