FRONTEND_MVC/controllers/PersonController.php

<?php

namespace app\controllers;
use app\models\Person;
use yii\web\Controller;
use yii\web\NotFoundHttpException;


class PersonController extends \yii\web\Controller
{
    public function actionIndex()
    {
        return $this->render('index');
    }

    public function actionPerson($person){
		$model = Person::findOne(['alias'=>$person]);
		if( ( !$model instanceof Person ) || $model->show == 'N' ){
			throw new NotFoundHttpException("Статья не найдена");
        }
        return $this->render("person",["model"=>$model]);
    }

}