[moka同学笔记]Yii2 自定义class自定义全局函数(摘录)

Posted 2020-08-15 cd ~/Homestead

1、在app\\components下新建MyComponent.php

namespace app\\components;
 
 
use Yii;
use yii\\base\\Component;
use yii\\base\\InvalidConfigException;
 
class MyComponent extends Component
{
 public function welcome()
 {
  echo "Hello..Welcome to MyComponent";
 }
 
}

2、在config/web.php加入你的components

'components' => [
 
         'mycomponent' => [
 
            'class' => 'app\\components\\MyComponent',
 
            ],
           ]

3、在controllers/TestController.php中用你的components

namespace app\\controllers;
use Yii;
 
class TestController extends \\yii\\web\\Controller
{
    public function actionWelcome()
    {
       Yii::$app->mycomponent->welcome();
    }
 
}