如何在YII2中将参数从控制器传递到布局 [英] How to pass param from controller to layout in YII2

问题描述

我想将参数从控制器发送到布局(即main.php).但是我无法在main.php中获得参数

I want to send a parameter from controller to layout (i.e. main.php). But I am not able to get the param in main.php

我尝试过:

控制器代码:

$this->render('index',array('param' => $paramValue));

这就是我试图在布局中获得此效果的方式. main.php

And this is how i was trying to get this in layout ie. main.php

1. $this->param(与yii 1一样)
2. $param

1. $this->param (as in yii 1)
2. $param

但是我无法在布局中获得参数值.谁能告诉我该怎么做?

But i am not able to get param value in layout. Can anyone tell me how to do this?

推荐答案

yii \ base \ View 具有特殊的 $ params 属性.

例如，它用于通过Gii在默认生成的CRUD代码模板中构建面包屑.

For example it's used for building breadcrumbs in default generated CRUD code templates with Gii.

您可以在渲染之前像这样设置它:

You can set it like this before rendering:

use Yii;

Yii::$app->view->params['customParam'] = 'customValue';

在控制器内部，您可以像这样设置它:

Inside a controller you can set it like this:

$this->view->params['customParam'] = 'customValue';

然后它将在视图(包括主布局)中可用:

Then it will be available in views (including main layout):

/* @var $this yii\web\View */

echo $this->params['customParam'];

您也可以在官方指南.

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