TbHtml::closeButton PHP Method

    public static function closeButton($label = self::CLOSE_TEXT, $htmlOptions = array())
    {
        return self::close('button', $label, $htmlOptions);
    }

 /**
  * Renders the header HTML markup of the modal
  */
 public function renderModalHeader()
 {
     echo '<div class="modal-header">' . PHP_EOL;
     if ($this->closeText) {
         echo TbHtml::closeButton($this->closeText, array('data-dismiss' => 'modal'));
     }
     echo TbHtml::tag('h3', array(), $this->header);
     echo '</div>' . PHP_EOL;
 }