yii框架redis结合php实现秒杀效果(实例代码)

<?phpnamespace backend/controllers;use Yii;use yii/web/Controller;/*** */class GoodsController extends Controller{public $enableCsrfValidation=false;public function actionInfo(){$data=yii::$app->db->createCommand("select * from goods ")->queryAll();return $this->render('index',['data'=>$data]);}Public function actionXx(){$id=yii::$app->request->get('id');$data=yii::$app->db->createCommand("select * from goods where id='$id'")->queryOne();return $this->render('info',['data'=>$data]);}Public function actionAdd(){$a=yii::$app->redis;if (Yii::$app->request->isPost){$data=yii::$app->request->post();$res=yii::$app->db->createCommand()->insert('goods',$data)->execute();if($res){for ($i=0; $i <$data['counts'] ; $i++){ $a->lpush('goods',1);}return $this->redirect(array('goods/info'));}else{echo "添加失败";}}else{return $this->render('add');}}public function actionOrder(){$redis=yii::$app->redis;$count=$redis->lpop('goods');if(empty($count)){echo "库存不足";die;}$res=yii::$app->db->createCommand("update goods set counts=counts-1 where id=1 and counts>0")->execute();if($res){echo "秒杀成功";}else{echo "秒杀失败";}}}?>