incrbyfloat 将 key 所储存的值加上给定的浮点增量值（increment）

<?php
//连接本地的 Redis 服务
$redis = new Redis();
$redis->connect('10.1.3.15', 6379);
$redis->auth('kuaicdn_redis_passwd');
$redis->flushAll();
$ret['exec'][]=$redis->mset(array(
    'list_test1'=>'5',
    'list_test2'=>5,
    'list_test3'=>5.1,
    'list_test4'=>'5.1',
    'list_test5'=>'a',
    'list_test6'=>'我'
));
$ret['ret']['a']=$redis->mget(array(
    "list_test1",
    "list_test2",
    "list_test3",
    "list_test4",
    "list_test5",
    "list_test6",
));
$ret['ret']['b'][]=$redis->incrbyfloat ('list_test1',1.0003);
$ret['ret']['b'][]=$redis->incrbyfloat ('list_test2',1.0003);
$ret['ret']['b'][]=$redis->incrbyfloat ('list_test3',1.0003);
$ret['ret']['b'][]=$redis->incrbyfloat ('list_test4',1.0003);
$ret['ret']['b'][]=$redis->incrbyfloat ('list_test5',1.0003);
$ret['ret']['b'][]=$redis->incrbyfloat ('list_test6',1.0003);
$ret['ret']['mget']=$redis->mget(array(
    "list_test1",
    "list_test2",
    "list_test3",
    "list_test4",
    "list_test5",
    "list_test6",
));
print_r($ret);
?>

返回值: