如何使用C.Gridview - Yii格式化数字字符串

我最近遇到了一个问题，那里有一串数字（totaldue），我想在我的C.Gridview中设置格式，这样10000会变成10,000。

I've recently run into the issue where I have a string of numbers (totaldue) that I would like to format in my C.Gridview so that 10000 would become 10,000

到目前为止，我已经完成了这项工作

So far I have done this

$this->widget('zii.widgets.grid.CGridView', array(
'id'=>'paylist-grid',
'dataProvider'=>$dataProvider,
'filter'=>$model,
'columns'=>array(

    'totaldue'=> array(
        'value'=>'totaldue',         
        'type'=>'number'),
// more code ... 

如果总计到期时间为int或者double，但是因为它是一个字符串，所以我得到了一个错误。

This would work if total due was a int or double, but because it is a string, I am getting thrown an error.

我试图用intval
ex。

I attempted to change number into an int by using intval ex.

'totaldue'=> array(
        'value'=>intval('totaldue'),          
        'type'=>'number'),
// more code ... 

但是这会抛出错误call_user_func_array（）期望参数1是有效的回调，没有给出数组或字符串。我知道这可以做到 - 但我正在努力实现它。任何建议/帮助将不胜感激！

but this threw back the error call_user_func_array() expects parameter 1 to be a valid callback, no array or string given. I know that this can be done - but I'm struggling to implement it. Any advice/help would be greatly appreciated!