使用redis->eval()的lua脚本报错

问题描述

报错，说是类型不匹配，该如何处理。。。

程序代码

$redis = Redis::connection('seckill_cache');
        $stockKey = "product_stock:{$data['productId']}";
        $sortedSetKey = "grab_requests:{$data['productId']}";
        $timestamp = microtime(true);
        $userId = $data['userId'];
        $productStock = $redis->get($stockKey);

        if ($productStock === false || $productStock === null) {
            $productStock = Db::table('wa_sec')->where('product_id', $data['productId'])->value('stock');
            if ($productStock === null || $productStock <= 0) {
                return 1;
            }
            $redis->set($stockKey, $productStock);
        } else if ((int)$productStock === 0) {
            return 1;
        }
        // 检查用户是否已经在抢购队列中
        if ($redis->zScore($sortedSetKey, $userId) !== false) {
            return 0; // 用户已存在，不允许再次抢购
        }
        // 使用Lua脚本来保证库存减少和用户加入队列的原子性操作
        $luaScript = <<<LUA
            local currentStock = tonumber(redis.call('GET', KEYS[1]))
            if currentStock <= 0 then
            return 0
            end
            redis.call('DECR', KEYS[1])
            redis.call('ZADD', KEYS[2], ARGV[1], ARGV[2])
            return 1
        LUA;
        // 调用 Lua 脚本并传递正确的参数
        $result = $redis->eval($luaScript, [$stockKey, $sortedSetKey], 2, $timestamp, (int)$userId);

报错信息

TypeError: Redis::eval(): Argument #3 ($num_keys) must be of type int, array given in D:\phps\webman\webman\vendor\illuminate\redis\Connections\Connection.php:116<br  />Stack trace:<br  />#0 D:\phps\webman\webman\vendor\illuminate\redis\Connections\Connection.php(116): Redis->eval('    local curre...', Array, Array)<br  />#1 D:\phps\webman\webman\vendor\illuminate\redis\Connections\PhpRedisConnection.php(531): Illuminate\Redis\Connections\Connection->command('eval', Array)<br  />#2 D:\phps\webman\webman\vendor\illuminate\redis\Connections\PhpRedisConnection.php(448): Illuminate\Redis\Connections\PhpRedisConnection->command('eval', Array)<br  />#3 D:\phps\webman\webman\plugin\frontApi\app\model\Seckill.php(65): Illuminate\Redis\Connections\PhpRedisConnection->eval('    local curre...', Array, 2, 1738833568.0599, 1)<br  />#4 

解决办法 ->eval（脚本，keys的个数，然后是keys对应的,再试arg之后的参数，） 脚本对应不能乱！ 没有数组

$result = $redis->eval($luaScript, count([$stockKey, $sortedSetKey]), stockKey,sortedSetKey $timestamp, (int)$userId);