<?php
namespace app\modules\common;
use Yii;
class Redis
{

    /**
     *添加锁
     */
    public static function lock($key, $number, $time = 30)
    {
        $redis=Yii::$app->redis;
        $re=$redis->set($key, $number, 'EX', $time, "NX");
        return $re;
    }

    /**
     *释放锁
     */
    public static function unlock($key, $number)
    {
        $redis=Yii::$app->redis;
        if ($redis->exists($key)&&($redis->get($key)==$number)) {
            $redis->del($key);
        }
    }
}