(PHP 4, PHP 5, PHP 7) Creates a temporary file

(PHP 4, PHP 5, PHP 7) Portable advisory file locking

(PHP 4, PHP 5, PHP 7) Opens file or URL resource

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Find pathnames matching a pattern

(PECL proctitle >= 0.1.0) Set the process title

(PHP 4, PHP 5, PHP 7) Deletes a file bool unlink

(PHP 4, PHP 5, PHP 7) Makes directory bool mkdir

(PHP 4, PHP 5, PHP 7) Parse a configuration file

(PHP 5, PHP 7) Write a string to a file int file_put_contents

(PHP 4, PHP 5, PHP 7) Rewind directory handle