数据库通过find()查询得到的结果，对象显示、数组显示、数组内某个值显示 [ 新手入门 ]

$result_object=Country::find()->where(['code'=>'US'])->all();//返回对象
$result_array=Country::find()->where(['code'=>'US'])->asArray()->all();//返回数组
echo "return object is：";
var_dump($result_object);
echo "<br><br>";
echo "return array is：";
var_dump($result_array);
echo "<br><br>";
echo "return array[0]['name'] is ：".$result_array[0]['name'];

显示结果