(PHP 5 >= 5.1.0, PHP 7) Format line as CSV and write to file pointer

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

(PHP 4, PHP 5, PHP 7) Open directory handle resource

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

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

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

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

(PECL xdiff >= 0.2.0) Alias of xdiff_file_bdiff

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

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