I can t save the tabular value to db. Please help me some one , iam a beginer in yii frame work

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PHP

here is my view(form)

Add Answers

textField($model, 'answers[]', array('placeholder' => 'Enter Answer'),array('size' => 60, 'maxlength' => 250)); ?> error($model, 'answers[]'); ?>

textField($model, 'points[]', array('placeholder' => 'Enter Points')); ?> error($model, 'points[]'); ?>

<img width="15" height="15" src="baseUrl; ?>/images/admin/green-plus-sign-md.png" alt="pluse" class="plus_position">  <img width="15" height="15" src="baseUrl; ?>/images/admin/green--sign-md.png" class="plus_position">

'btn btn-primary'), ' Save'); ?>
endWidget(); ?>


Action create:

public function actionCreate() {
$model = new Answers;

if (isset($_POST['Answers'])) {
$model->attributes = $_POST['Answers'];
$valid = $model->validate();
if(isset($_POST['Answers']))
{
$valid = true;


foreach ($_POST['Answers'] as $id => $answer)
{
$model[$id] = new Answers;
$model->attributes = $answer;
$valid = $model[$id]->validate() && $valid;
}
if($valid)
{
foreach ($_POST['Answers'] as $id=>$answer)
{
$model[$id]->question_id = $model->id;
$model[$id]->save(false);
}
$this->redirect(array('index','id'=>$model->id));
}
}


}

$this->render('create', array(
'model' => $model,
));
}