(PHP 4, PHP 5, PHP 7) Changes the current umask

(PHP 5 >= 5.1.2, PHP 7) Changes group ownership of symlink

(PHP 4 >= 4.0.3, PHP 5, PHP 7) Returns information about a file path

(PHP 4 >= 4.0.1, PHP 5, PHP 7) Parses input from a file according to a format

(PHP 4, PHP 5, PHP 7) Returns canonicalized absolute pathname

(PHP 4, PHP 5, PHP 7) Returns trailing name component of path

(PHP 4, PHP 5, PHP 7) Truncates a file to a given length

(PHP 4 >= 4.0.3, PHP 5, PHP 7) Moves an uploaded file to a new location

(PHP 4, PHP 5, PHP 7) Gets file group int filegroup

(PHP 4, PHP 5, PHP 7) Seeks on a file pointer