namespace backend\models;
class Article extends \yii\db\ActiveRecord
{
　　public function rules()
　　{
  　　return [
    　　[['title', 'content'], 'required'],
  　　];
　　}
public function attributeLabels()
{
  return [
    'id' => 'ID',
    'title' => '名称',
    'content' => '内容',
  ];
}
}

namespace backend\controllers;

use backend\models\Article;

class ArticleController extends \yii\web\Controller
{
  /*
   * 发布文章
   */
  public function actionAdd()
  {
    $article = new Article();
    if($article->load(\Yii::$app->request->post()) && $article->validate()){
　　　　　　　$article->created_time = time();
      $article->save();  
      \Yii::$app->session->setFlash('success','文章添加成功');
      return $this->refresh();
    }

    return $this->render('add',['article'=>$article]);
  }
}

 composer require kucha/ueditor "*"

public function actions()
{
  return [
    'upload' => [
      'class' => 'kucha\ueditor\UEditorAction',
      'config' => [
        "imageUrlPrefix" => "",//图片访问路径前缀
        "imagePathFormat" => "/upload/image/{yyyy}{mm}{dd}/{time}{rand:6}" //上传保存路径
        "imageRoot" => Yii::getAlias("@webroot"),
      ],
    ]
  ];
}

$form = \yii\bootstrap\ActiveForm::begin();
echo $form->field($article,'title');
echo $form->field($article,'content')->widget('kucha\ueditor\UEditor',[
  'clientOptions' => [
    //编辑区域大小
    'initialFrameHeight' => '200',
    //设置语言
    'lang' =>'en', //中文为 zh-cn
    //定制菜单
    'toolbars' => [
      [
        'fullscreen', 'source', 'undo', 'redo', '|',
        'fontsize',
        'bold', 'italic', 'underline', 'fontborder', 'strikethrough', 'removeformat',
        'formatmatch', 'autotypeset', 'blockquote', 'pasteplain', '|',
        'forecolor', 'backcolor', '|',
        'lineheight', '|',
        'indent', '|'
      ],
    ]
]);
echo \yii\bootstrap\Html::submitButton('提交',['class'=>'btn btn-info']);
\yii\bootstrap\ActiveForm::end();