更新

app-ghs/controllers/TestController.php

@@ -48,7 +48,7 @@ class TestController extends BaseController
 
         Yii::$app->redis->executeCommand('HSET', [$cacheKey, 'lgl', 3]);
 
-        $arr = Yii::$app->redis->executeCommand('HSET', [$cacheKey, 'lgl', 3]);
+        $arr = Yii::$app->redis->executeCommand('HKEYS', [$cacheKey]);
         print_r($arr);
     }