title: Yii2: How to add textarea in yii2
body: <p>What is the mapping of textarea in yii2 ?
  How to write this in yii2 format?</p>
  
  <pre><code>&lt;textarea  name="downloadSourceCode" id="downloadSourceCode"&gt;&lt;/textarea&gt;
  </code></pre>
  
  <p>What is an alternative or way to define textarea in yii2?</p>