title: What is the data type for JSON?
body: <p>I am writing a php method according to phpDocumentor format. The method just returns json, and I wrote String at the momemnt. I am wondering is this correct?</p>
  <pre><code>/**
   * This is a method returns json
   * @return String
   */
  public function _getJsonData() {
    .....
  }
  </code></pre>