yii2.0如何获取当前的控制器名与方法名

 在控制器中

$controllerID = Yii::$app->controller->id    //获取当前的控制器名

 $actionID = Yii::$app->controller->action->id;    //获取当前的方法名

Yii2.0中验证码的使用

model层

 public $verifyCode;

     public function rules()
    {
        return [
            ['verifyCode', 'required','message' => '不能为空'],
            ['verifyCode', 'captcha'],
           
        ];
    }

控制器层

    public function actions() {
        return [
            'captcha' =>  [
                'class' => 'yii\captcha\CaptchaAction',
                'height' => 50,
                'width' => 60,
                'minLength' => 5,
                'maxLength' => 5,
            ],
        ];
    }

视图层

<?= $form->field($model, 'verifyCode')->widget(Captcha::className(), [
          'template' => '<div class="row"><div class="col-lg-6">{input}</div><div class="col-lg-3">{image}</div></div>',
 ]) ?>