(PHP 5 >= 5.1.0, PHP 7) No purpose public

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

(PHP 5 >= 5.1.0, PHP 7) Output all remaining data on a file pointer

(PHP 5 >= 5.1.2, PHP 7) Gets the filename

(PHP 5 >= 5.1.2, PHP 7) Gets the owner of the file

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

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

(PHP 5 >= 5.3.0, PHP 7) Return current node pointed by the iterator

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

(PHP 5 >= 5.1.2, PHP 7) Tells if the file is executable