php composer.phar require --prefer-dist yiisoft/yii2-redis

'yiisoft/yii2-redis' =>
 array (
  'name' => 'yiisoft/yii2-redis',
  'version' => '2.0.5.0',
  'alias' =>
  array (
   '@yii/redis' => $vendorDir . '/yiisoft/yii2-redis',
  ),
 ),

'redis' =>[
      'class' => 'yii\redis\Connection',
      'hostname' => 'localhost', //你的redis地址
      'port' => 6379, //端口
      'database' => 0,
    ]

$source = Yii::$app->redis->set('var1','asdasd');

$source = Yii::$app->redis->get('var1');

$source = Yii::$app->redis->del('var1');

$var2 = Yii::$app->redis->keys("*");

$var1 = Yii::$app->redis->lpush("vari","lisr");

$var3 = Yii::$app->redis->lrange("vari",0,2);

$var33 = Yii::$app->redis->lset('vari',21,'2323');

$var4 = Yii::$app->redis->hmset('mioji','name','syc','age','24');

$var5 = Yii::$app->redis->hgetall('mioji');

$var6 = Yii::$app->redis->sadd('mioji1','lgc','lr','yzb','syc');

$var60 = Yii::$app->redis->scard('mioji1');

$var61 = Yii::$app->redis->smembers('mioji1');

$var8 = Yii::$app->redis->zadd('mioji2','1','zf','2','ls');

$var81 = Yii::$app->redis->zcard('mioji2');

$var82 = Yii::$app->redis->zrange('mioji2',0,2);

$var7 = Yii::$app->redis->psubscribe('redisChat');