表單AR

<?php
use yii\helpers\Html;
use yii\bootstrap\ActiveForm;
?>


<?php $form = ActiveForm::begin()?>


<?= $form->field($model, 'username') ?>


<div class="form-group">
      <div class="col-lg-offset-1 col-lg-11">
             <?= Html::submitButton('Login', ['class' => 'btn btn-primary', 'name' => 'login-button']) ?> 
       </div>
</div>
<?php ActiveForm::end(); ?>