Yii2 theme baseurl

问题

I'm trying to echo Yii2 theme base url using this official link.

<?php 
    $theme = $this->theme;
    echo $theme->baseUrl; // line 119
?>

but it return me this error:

PHP Notice – yii\base\ErrorException Trying to get property of non-object

1. in E:\wamp\www\yii2-app\frontend\views\site\index.php at line 119

Why this error? is it not possible to get Yii2 theme base url?

回答1:

seems that you component is not properly defined .. be sure you have a theme defined in you components section eg:

  return [
      'components' => [
          'view' => [
              'theme' => [
                  'basePath' => '@app/themes/basic',
                  'baseUrl' => '@web/themes/basic',
                  'pathMap' => [
                      '@app/views' => '@app/themes/basic',
                  ],
              ],
          ],
      ],
];

来源：https://stackoverflow.com/questions/38489044/yii2-theme-baseurl