$sarr = array();
        $sarr['noncestr'] = substr(str_shuffle($this->s), 0,10);
        $sarr['jsapi_ticket'] = $this->getticket($this->appid,$this->scret);
        $sarr['timestamp'] = ''.time().'';
        //$protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
        $protocol = "https://";//由负载均衡负责HTTPS以上判断有误
        //    $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
        $url =$this->request->param('url','','string');
//        $url = encodeURIComponent($url); // 这里务必编码
//        $sarr['url'] = encodeURIComponent(trim($url));
        ksort($sarr);
        reset($sarr);

        $pin = '';
        foreach($sarr as $k=>$v){
            $pin .= $k.'='.$v.'&';
        }
        $pin = substr($pin, 0,-1);
        $sign = sha1($pin);

        $return['appId'] = $this->appid;
        $return['timestamp'] = (string)$sarr['timestamp'];
        $return['nonceStr'] = $sarr['noncestr'];
        $return['signature'] = $sign;
   $accsss = $this->getaccess($appid,$scret);
        if(!$accsss)return false;
        $is_exists = $this->getMysql()->name('WechatInfo')->where(array('name'=>'unih5ticket'))->find();
        $sign = 'add';
        if($is_exists){
            if($is_exists['ex_time'] > time()){
                return $is_exists['cont'];
            }
            $sign = 'save';
        }

        $url = 'https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token='.$accsss.'&type=jsapi';
        $get = curlGet($url);
        $ginfo = json_decode($get,true);
//        dump($ginfo);
        if($ginfo['errcode'] == 0 && $ginfo['errmsg'] == 'ok'){
            $s_arr = array();
            $s_arr['cont'] = $ginfo['ticket'];
            $s_arr['create_time'] = time();
            $s_arr['ex_time'] = time()+7000;
            if($sign == 'save'){
                $this->getMysql()->name('WechatInfo')->where(array('name'=>'unih5ticket'))->update($s_arr);
            }else{
                $s_arr['name'] = 'unih5ticket';
                $this->getMysql()->name('WechatInfo')->insert($s_arr);
            }
            return $ginfo['ticket'];
        }else{
            return false;
        }

大佬 ，除了前端页面，加入encodeURIComponent 编码，其它你说的，我这边都有处理。而且我刚对前端页面加上了 encodeURIComponent，也还是报签名错误