supported() supported() : boolean Is this driver supported on this system? Returns boolean — True if supported.
pack() pack(mixed $data) : string Pack a string. Parameters mixed $data The data to pack. Throws \Horde_Pack_Exception Returns string — The packed string.
unpack() unpack(string $data) : mixed Unpack a string. Parameters string $data The packed string. Throws \Horde_Pack_Exception Returns mixed — The unpacked data.