library/Rediska/Key.php
public function setBit($offset, $bit)
    {
        return $this->_getRediskaOn()->setBit($this->getName(), $offset, $bit);
    }
public function setBit($offset, $bit)
    {
        return $this->_getRediskaOn()->setBit($this->getName(), $offset, $bit);
    }
Returns the bit value at offset in the string value stored at key

@param integer $offset Offset
@param integer $bit    Bit (0 or 1)
@return integer