PHP利用lua实现Redis Sorted set的zPop操作

    function zPop($key)
    {
        $script = <<<EOD
local v = redis.call('zrange', KEYS[1], 0, 0);
if v[1] ~= nil then
    redis.call('zremrangebyrank', KEYS[1], 0, 0);
    return v[1];
end;
return nil;
EOD;
        return $this->cache->eval($script, [$key], 1);
    }

PS: 这里其实是利用了Redis的lua script；redis 5.0 会实现zPopMin 跟zPopMax

转载于:https://www.cnblogs.com/sanshuiqing/p/9140761.html