incrByFloat 命令/方法/函数

Increment the key with floating point precision.

自增一个浮点型的数值。


Parameters

key

value: (float) value that will be added to the key


Return value

FLOAT the new value


Examples

$redis->incrByFloat('key1', 1.5); /* key1 didn't exist, so it will now be 1.5 */

$redis->incrByFloat('key1', 1.5); /* 3 */

$redis->incrByFloat('key1', -1.5); /* 1.5 */

$redis->incrByFloat('key1', 2.5); /* 3.5 */