Description
Return a single bit out of a larger string
将一个位返回一个较大的字符串
Parameters
key
offset
Return value
LONG: the bit value (0 or 1)
Example
$redis->set('key', "\x7f"); // this is 0111 1111
$redis->getBit('key', 0); /* 0 */
$redis->getBit('key', 1); /* 1 */
