Question

var_dump($dataProvider);

抛出以下输出：

 .
 .
 .
 19 => 
        object(app\models\Bewerbungen)[219]
          private '_attributes' (yii\db\BaseActiveRecord) => 
            array (size=12)
              ...
          private '_oldAttributes' (yii\db\BaseActiveRecord) => 
            array (size=12)
              ...
          private '_related' (yii\db\BaseActiveRecord) => 
            array (size=2)
              ...
          private '_errors' (yii\base\Model) => null
          private '_validators' (yii\base\Model) => null
          private '_scenario' (yii\base\Model) => string 'default' (length=7)
          private '_events' (yii\base\Component) => 
            array (size=0)
              ...
          private '_behaviors' (yii\base\Component) => 
            array (size=0)
              ...
  private '_totalCount' (yii\data\BaseDataProvider) => int 44
  private '_events' (yii\base\Component) => 
    array (size=0)
      empty
  private '_behaviors' (yii\base\Component) => null

我只需要跟随var_dump（）的值：

private '_totalCount' (yii\data\BaseDataProvider) =>int 44

任何想法如何挑选$ dataProvider的这个值。我尝试了几个foreach（） - 循环，但我没有成功

Answer 1

私有属性不是（直接）可访问的，但您可以使用explict函数来访问属性，例如：

$count = $dataProvider->getCount();

请参阅http://www.yiiframework.com/doc-2.0/guide-output-data-providers.html

http://www.yiiframework.com/doc-2.0/yii-data-activedataprovider.html http://www.yiiframework.com/doc-2.0/yii-data-sqldataprovider.html http://www.yiiframework.com/doc-2.0/yii-data-arraydataprovider.html

如何在yii2中获取var_dump（）的值？

1 个答案: