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

(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 4, PHP 5, PHP 7) Rewind the position of a file pointer

(PHP 4, PHP 5, PHP 7) Create a hard link bool

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

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

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

(PHP 4, PHP 5, PHP 7) Gives information about a file or symbolic link

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