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

(PHP 4, PHP 5, PHP 7) Output all remaining data on a file pointer

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

(PHP 4, PHP 5, PHP 7) Alias of

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

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

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

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

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

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