(PHP 4, PHP 5, PHP 7) Sets access and modification time of file

(PHP 4, PHP 5, PHP 7) Returns a parent directory's path

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

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Reads entire file into a string

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

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

(PHP 4, PHP 5, PHP 7) Tells whether the filename is executable

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

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

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