详解thinkphp+redis+队列的实现代码-Redis

/**
  * 抢购商品前处理当前会员是否进入队列
  * @access public
  * @author bieanju
  */
 public function goods_number_queue(){
  !$this->user_id && $this->ajaxReturn(array("status" => "-1","msg" => "请先登录"));
  $model = M("flash_sale");
  $where['goods_id'] = $this->goods_id;
  $goods_info = $model->where($where)->find();
  !$goods_info && $this->error("对不起当前商品不存在或已下架！"); 
  /* redis 队列 */ 
  $redis = $this->connectRedis();
  /* 进入队列 */
  $goods_number_key = $redis->llen("{$this->goods_number_key}");
  if (!$redis->hGet("{$this->user_queue_key}", $this->user_id)) {
   $goods_number_key = $redis->lpop("{$this->goods_number_key}");
  }
   
  if($goods_number_key){
   // 判断用户是否已在队列
   if (!$redis->hGet("{$this->user_queue_key}", $this->user_id)) {
    // 插入抢购用户信息
    $userinfo = array(
     "user_id" => $this->user_id,
     "create_time" => time()
    );    
    $redis->hSet("{$this->user_queue_key}", $this->user_id, serialize($userinfo));
    $this->ajaxReturn(array("status" => "1"));
   }else{
    $modelCart = M("cart");
    $condition['user_id'] = $this->user_id;
    $condition['goods_id'] = $this->goods_id;
    $condition['prom_type'] = 1;
  $cartlist = $modelCart->where($condition)->count();
    if($cartlist > 0){
     $this->ajaxReturn(array("status" => "2"));
    }else{
     
     $this->ajaxReturn(array("status" => "1"));
     
    }
     
   }
    
  }else{
   $this->ajaxReturn(array("status" => "-1","msg" => "系统繁忙,请重试！"));
  }
 }

附加一个调试的函数，删除指定队列值：

 public function clearRedis(){
   set_time_limit(0);
   $redis = $this->connectRedis();
   //$Rd = $redis->del("{$this->user_queue_key}");
   $Rd = $redis->hDel("goods49",'用户id'');
   $a = $redis->hGet("goods_49_user", '用户id');
   if(!$a){
    dump($a);
   }
   
   if($Rd == 0){
    exit("Redis队列已释放！");   
   }
  }