Redis类：

?php
  namespace Utils;
    

  use Phalcon\Config\Adapter\Ini as ConfigIni;


  class Redis{
    
    private static $redis1;
    
    private static $session;


    /**
     * 获取一个单例的redis对象
     * @param string $name
     * @return \Redis
     */
    public static function getObj($name='redis1')
    {

      try{

        if(!empty(self::$$name)){
    
          return self::$$name;

        }
    
        $config = new ConfigIni(APP_PATH."/config".ENV."/redis.ini");
    
        self::$$name = new \Redis();
    
        self::$$name->
    connect($config[$name]['host'], $config[$name]['port'],2);
    
        if(isset($config[$name]['password']) &
    &
 !empty($config[$name]['password'])){
    
          self::$$name->
    auth($config[$name]['password']);

        
        }
    
        self::$$name->
    select($config[$name]['database']);

      }
catch (\Exception $exception){
    
        self::$$name = false;

      }
    
      return self::$$name;


    }



  }
    ;

定时任务：

  /**
   * 订单任务
   */
  public function orderAction()
  {
    
    error_reporting(E_ALL &
     ~E_NOTICE);
    
    $redis = Redis::getObj();
    
    //获取数据库连接实例
    $db = $this->
    getDI()->
    getShared('db');

    while (true) {
    
      print_r(' -start- ');
    
      $order_status = 1;
    
      file_put_contents(APP_PATH . "/../domain_order.log", time());

      try {
    
      	//防止长时间无任务导致MySQL超时
        $db->
    query("select 1");
    
        //出列
        $order_info = $redis->
    lPop('order');

        if (!$order_info) {
    //队列为空时暂停
          echo ' -empty- ';
    
          sleep(1);
    
          continue;

        }
    
        $order_info = json_decode($order_info, true);
    
        $model_order_info = NetUserOrder::findFirst(['order_sn = :order_sn:','bind'=>
    ['order_sn'=>
    $order_domain_info_save->
    order_sn]]);
    
        //未支付
        if($model_order_info->
pay_status != 200){
    
          echo 'no pay';
    
          continue;

        }
    
        //已操作
        if ($order_domain_info_save->
order_status == 3) {
    
          echo ' -Operated- ';
    
          continue;

        }
    
        //事务开始
        $db->
    begin();
    
        ##
        这里执行订单流程操作
        ##

        $order_status = 3;
    //操作成功

        //修改订单状态
        $order_domain_info_save->
    order_status = $order_status;
    
        $order_domain_info_save->
    operation_time = time();
    
        $order_domain_info_save->
    update();

        }
    

        //提交事务
        $db->
    commit();
    
        printf('### succ order_id' . $order_info['id'] . ' ###');

      }
 catch (\Exception $e) {
    
        //回滚事务
        $db->
    rollback();
    
        $order_status = 2;
    //操作失败

        $order_domain_info_save->
    order_status = $order_status;
    
        $order_domain_info_save->
    operation_time = time();
    
        $order_domain_info_save->
    update();
    

        printf(' error ' . $e->
    getMessage() . ' ');
    
        //异常,发送通知
        Log::error($e->
    getMessage());
    
          $redis->
    hSet('order_domain_retry', 'domain_retry_' . $order_info['id'], json_encode($order_info));

      }
    

Redis常用队列方法：

//队列第一个 =>
    出列
$Redis->
    lPop($key);
    
//入到 =>
    队列最后
$Redis->
    rPush($key);
    


//队列最后一个 =>
    出列
$Redis->
    rPop($key);
    
//入到 =>
    队列第一个
$Redis->
    rPop($key);
    

//返回整个列表的值，不出列
$redis->
    lRange($key,0,-1);
    

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