getrange 返回 key 中字符串值的子字符

返回 key 中字符串值的子字符
Parameters:
string $key
int $start
int $end
Returns: the substring
Declared in: Redis
Links: https://redis.io/commands/getrange
Source:
S:/Software/JetBrains/PHPStorm/App/PhpStorm-2020.2.1.win/plugins/php/lib/php.jar!/stubs/redis/Redis.php
getRange on redis.io

<?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->set('list_test1','value1');
$ret['exec'][]=$redis->set('list_test2','value2');
$ret['exec'][]=$redis->set('list_test3','value3');
$ret['exec'][]=$redis->set('list_test4','value4');
$ret['exec'][]=$redis->set('list_test5','value512345');
$ret['exec'][]=$redis->set('list_test6','value6',['nx', 'ex' => 10]);
$ret['ret'][]=$redis->getrange ('list_test5',0,-1);
$ret['ret'][]=$redis->getrange ('list_test5',5,8);
print_r($ret);
?>

返回值：

Array
(
    [exec] => Array
        (
            [0] => 1
            [1] => 1
            [2] => 1
            [3] => 1
            [4] => 1
            [5] => 1
        )
    [ret] => Array
        (
            [0] => value512345
            [1] => 5123
        )
)