yii：尝试获取非对象的属性

嗯，我发现this https://stackoverflow.com/questions/18335513/trying-to-get-property-of-non-object-error-in-yii，但我看不到与我的错误的关系。我是新手——我知道这个借口是不可接受的，但在我在这里提问之前，我尝试先找到解决方案。我希望你可以帮助我。

所以我有这个代码，我把这个代码放在视图中：

foreach ($budget as $budget):
            if (array_key_exists('year', $_GET)) {
                $criteria = new CDbCriteria;
                $criteria->condition = 'year = ' . $_GET['year'];
                $criteria->addCondition('mapping_id = '. $budget->id);
                $yearBudget = YearlyBudget::model()->find($criteria);
            } else {
                $yearBudget = new YearlyBudget;
            } 
 endforeach;

然后在该代码之后，我只是回显：

echo $yearBudget->budget;

然后我得到了非对象错误。我只是不明白并陷入了这段代码。请帮忙，谢谢。

print_r($yearBudget); ：

YearlyBudget Object(
[_new:CActiveRecord:private] => 
[_attributes:CActiveRecord:private] => Array
    (
        [id] => 1
        [mapping_id] => 1
        [year] => 2012
        [budget] => 2000000
        [balance] => 2000000
        [created] => 2013-11-20 10:16:29
        [updated] => 
    )

[_related:CActiveRecord:private] => Array
    (
    )

[_c:CActiveRecord:private] => 
[_pk:CActiveRecord:private] => 1
[_alias:CActiveRecord:private] => t
[_errors:CModel:private] => Array
    (
    )

[_validators:CModel:private] => 
[_scenario:CModel:private] => update
[_e:CComponent:private] => 
[_m:CComponent:private] => 

)

啊，抱歉，如果我的英语不好..

我强烈建议使用CHtml::value() method http://www.yiiframework.com/doc/api/1.1/CHtml#value-detail http://www.yiiframework.com/doc/api/1.1/CHtml#value-detail

echo CHtml::value($yearBudget, 'budget');

当涉及多个相关对象时，这非常方便，并且您不需要检查每个相关模型的存在来访问其属性

echo CHtml::value($budget, 'company.fiscalYear.creator.id');