'value' =>
   'CHtml::link( "查看文章",

   Yii::app()->createUrl( "/article/admin", array("id"=>$data->id,"m"=>"users","user_id"=>'.$user_id.') )',

若参数是字符串，需要加双引号：

'value' =>
   'CHtml::link( "查看文章",

   Yii::app()->createUrl( "/article/admin", array("id"=>$data->id,"m"=>"users","user_id"=>"'.$user_id.'") )',