How do you get the field name, instead of the value, from the model? - yii

Question

Suppose I have a Model Class named Anything, in Yii, and all I want is to get not the field value, but the field name, how could I do that?
Because using something like:
$anything = new Anything;
$anything->field_name;
Returns the value of that field, which is the purpose for that, still, if all you want is the string of the name of the field, how could you do that?
I tried using:
$anything->attributes;
But it just returns an array of field names, I want to try and get a specific value as a defined constant.
What I want to do is use the $_POST with specific and practical use, so I wouldn't need to use:
$_POST["Model_name"];
Instead I could use:
$_POST[Anything::model()->name][Anything::model()->field_name->name]
Which seems a lot better than "" and '' here and there. Mostly because I'm trying to set multiple fieldsets of different Models in the same formulary.
So if I could use:
$_POST[Anything::model()->name][Anything::model()->field_name->name];
and
$_POST[Something::model()->name][Something::model()->field_name->name]
and
$_POST[Godspeed::model()->name][Godspeed::model()->field_name->name]
It would save a lot of problems I might had in the future.

Answer 1

$strModelName = 'ModelName'; //dynamic - whatever model name you put in it
$find_id = 3;
$record = $strModelName::model()->findByPK($find_id); //it's same with ModelName::model()->findByPK(3)
foreach($record->attributes as $key=>$value){
var_dump($_POST[$strModelName][$key]); //get value corresponding to given key
}
Btw, you still need check whether the model is exist or not
http://www.yiiframework.com/forum/index.php/topic/22790-check-if-model-exists/