title: Yii2 create a form without a model
body: <p>I was wondering how can I create a form without a model in Yii2 framework as I am creating a mailchimp signup form so a model isn't necessary the below code generates a form however as you can see it uses a model.</p>
  
  <pre><code>&lt;?php $form = ActiveForm::begin(['id' =&gt; 'login-form']); ?&gt;
  
  &lt;?= $form-&gt;field($model, 'title')-&gt;textInput(['maxlength' =&gt; 255]) ?&gt;
  
  &lt;?php ActiveForm::end(); ?&gt;
  </code></pre>
  
  <p>Do I still use activeform, how can I remove the $model variable without it throwing up an error? </p>