(PHP 3, PHP 4 >= 4.0.0)
umask -- Changes the current umask
Description
umask() sets PHP's umask to mask & 0777 and
returns the old umask. When PHP is being used as a server module,
the umask is restored when each request is finished.
umask() without arguments simply returns the
current umask.
Note:
This function may not work on Windows systems.