PHP extension PHPredis gets data and returns data similar to :1

As mentioned, the project uses the list queue of redis. When using rpop to obtain data, sometimes a value similar to :1 will be returned; the transmission was found in the issues list of phpredis on github Gate, the version used by the project is version 2.2.7. Is there any solution to similar problems?

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As mentioned, the project uses the list queue of redis. When using rpop to obtain data, sometimes a value similar to :1 will be returned; the transmission was found in the issues list of phpredis on github Gate, the version used by the project is version 2.2.7. Is there any solution to similar problems?

Upload the code

<code>while (true)
        {
            $list = $redis->blpop(DXKey::getKeyOfRunnerEmailTaskListPending(), 6);
            
            if (is_array($list) && count($list) == 2)
            {
                DXUtil::consoleLog(DXUtil::jsonEncode($list));
                $payload = $list[1];
                DXUtil::consoleLog('pop: ' . $payload);
                $task = @json_decode($payload, true);
                MailTaskRunner::runEmailTask($task);
            }
           
        }</code>

Execution results

<code>2016-11-23 19:23:07 start
2016-11-23 19:23:08 ["runner.email.task.list.pending","{\"time\":1479900188,\"type\":1,\"data\":{\"to_address\":\"wqcsimple@foxmail.com\",\"task_id\":1}}"]
2016-11-23 19:23:08 pop: {"time":1479900188,"type":1,"data":{"to_address":"wqcsimple@foxmail.com","task_id":1}}
2016-11-23 19:23:08 send success
</code>