resetAuth() public method

删除验证数据
public resetAuth ( string $appid = '' )
$appid string
 function getJsSign()
 {
     if ($this->request->is('post')) {
         $url = $this->request->data('url');
         $timestamp = $this->request->data('timestamp');
         $nonceStr = $this->request->data('nonceStr');
         $appId = 'yourappid';
         $wxObj = new Wechat(array('token' => 'yourtoken', 'appid' => $appId, 'appsecret' => 'yourpants'));
         //调用对应的函数
         $sign = $wxObj->getJsSign($url, $timestamp, $nonceStr);
         //如果token失效,清除token重试一次
         if ($wxObj->errCode == 40001 || $wxObj->errCode == 42001) {
             $wxObj->resetAuth();
             $sign = $wxObj->getJsSign();
         }
         //如果返回false,获取errcode和errmsg
         if (!$sign) {
             return $this->sentJson(array('errCode' => $wxObj->errCode, 'errMsg' => WechatErrCode::getErrText($wxObj->errCode)));
         }
         $package = array('signature' => $sign, 'nonceStr' => $nonceStr, 'appId' => $appId, 'timestamp' => $timestamp);
         return $this->sentJson(array('errCode' => 0, 'errMsg' => '', 'result' => $package));
     }
 }