在Yii2中以JSON格式获取响应 [英] Get response in JSON format in Yii2

问题描述

我正在尝试将响应数组和响应数组转换为JSON格式.我已经尝试过在SO和其他网站(例如 web1 ， web2 添加header('Content-Type: application/json')，然后echo json_encode($data,JSON_PRETTY_PRINT); 但是我总是得到文本格式的输出. 有人可以帮我解决这个问题吗?

I'm trying to convert and array of response into JSON format. I have tried all the answers that were posted on SO and other websites like web1,web2 adding header('Content-Type: application/json') and then echo json_encode($data,JSON_PRETTY_PRINT); But I'm always getting the output in text format. Can some one help me in solving this.

助手类:

public static function renderJSON($data) {
    header('Content-Type: application/json');
    echo json_encode($data,JSON_PRETTY_PRINT);
}

我的控制器:

if ($model->login()) {
    $user =  User::findByUsernameOrEmail($request->post('username'));
    $userArray = ArrayHelper::toArray($user);
    Helpers::renderJSON($userArray);

我试图打印userArray，它看起来像这样:

I tried to printing the userArray and it looks like this:

Array
(
    [name] => abc
    [lastname] => xyz
    [username] => test_test
)

Json输出:(html/text)

Json output: (html/text)

{
    "name": "abc",
    "lastname": "xyz",
    "username": "test_test"
}

推荐答案

设置

\Yii::$app->response->format = \yii\web\Response::FORMAT_JSON;

在return之前某个位置的控制器动作中.

in the controller's action somewhere before return.

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