TbHtml::imageButton PHP Method

    public static function imageButton($src, $htmlOptions = array())
    {
        return self::btn(self::BUTTON_TYPE_IMAGE, $src, $htmlOptions);
    }

 /**
  * This function renders a built in button type.
  * The implementation is essentially a direct copy from
  * CFormButtonElement::render, the only difference is it uses TbHtml.
  * @return string the rendering result.
  */
 public function renderCore()
 {
     $attributes = $this->attributes;
     $method = self::$coreTypes[$this->type];
     if ($method === 'linkButton') {
         if (!isset($attributes['params'][$this->name])) {
             $attributes['params'][$this->name] = 1;
         }
     } elseif ($method === 'htmlButton') {
         $attributes['type'] = $this->type === 'htmlSubmit' ? 'submit' : ($this->type === 'htmlReset' ? 'reset' : 'button');
         $attributes['name'] = $this->name;
     } else {
         $attributes['name'] = $this->name;
     }
     if ($method === 'imageButton') {
         return TbHtml::imageButton(isset($attributes['src']) ? $attributes['src'] : '', $attributes);
     } else {
         return TbHtml::$method($this->label, $attributes);
     }
 }