(PHP 5 >= 5.1.0, PHP 7) Parses input from file according to a format

(PHP 5 >= 5.2.0, PHP 7) Get the delimiter and enclosure character for CSV

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

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

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

(PHP 5 >= 5.1.0, PHP 7) Returns an iterator for the current entry.

(PHP 5 >= 5.3.0, PHP 7) Pops a node from the end of the doubly linked list

(PHP 5 >= 5.1.0, PHP 7) Get max depth public

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

(PHP 5 >= 5.3.0, PHP 7) Counts the number of elements in the queue.