load->database();    }    /*     * 用户授权登录     */    function userLogin(){        $redirect_uri = urlencode('http://****/wxOpenid'); //跳转到下面调用这个方法的地址        $url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid='.$this->APPID.'&redirect_uri='.$redirect_uri.'&response_type=code&scope=snsapi_base&state=STATE#wechat_redirect';        header('Location:'.$url);    }    /*     * code获取openid     */    function CodegetOpenid($code){        $url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid='.$this->APPID.'&secret='.$this->APPSECRET.'&code='.$code.'&grant_type=authorization_code';        $res = file_get_contents($url);        $res = json_decode($res,true);        if($res['openid']){            return $res['openid'];        }else{            return false;        }    }    /**     * 生成token 每2个生成一次 脚本执行     *     */    function access_token(){        $url  = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='.$this->APPID.'&secret='.$this->APPSECRET;        $res = file_get_contents($url);        $res = json_decode($res,true);        if($res['access_token']){            file_put_contents('access_token.json', $res['access_token']);        }else{            $error = file_get_contents('access_token_error.json');            file_put_contents('access_token_error.json', $error.'获取token失败'.date('Y-m-d H:i:s',time())."\r\n");        }    }    /**     * 获取token     */    function gain_token(){        $token = file_get_contents('access_token.json');        if($token){            return ['code'=>0,'token'=>$token];        }else{            return ['code'=>1,'msg'=>'获取失败'];        }    }    /**     * 微信消息推送     * @param $openid 用户opendID     * @param $url 跳转地址     * @param $title 推送标题     * @param $realname 用户姓名     * @param $starttime 开始时间     * @param $content 推送内容     * @param string $remarks 备注     * @return $arr;     */    function postNews($openid,$url,$title,$realname,$starttime,$content,$remarks=''){        $token = $this->gain_token();        $wx_url = 'https://api.weixin.qq.com/cgi-bin/message/template/send?access_token='.$token['token'];        $data = [            'touser'=>$openid,            'template_id'=>'-dq0w-Orz0XRcQvvdse-BdNlwny1qU5i24gePpRsE6s',            'url'=>$url,            'topcolor'=>'#FF0000',            'data'=>[                'first'=>[                    'value'=>$title,                    'color'=>'#173177'                ],                'keyword1'=>[                    'value'=>$realname,                    'color'=>'#173177'                ],                'keyword2'=>[                    'value'=>$starttime,                    'color'=>'#173177'                ],                'keyword3'=>[                    'value'=>$content,                    'color'=>'#173177'                ],                'remark'=>[                    'value'=>$remarks,                    'color'=>'#173177'                ]            ]        ];       $res =  $this->https_post($wx_url,json_encode($data));       return $res;    }    /**     * @param $url     * @param null $data     * @return mixed     */    function https_post($url, $data = null){        $curl = curl_init();        curl_setopt($curl, CURLOPT_URL, $url);        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);        //curl_setopt($curl,CURLOPT_USERAGENT,$_SERVER['HTTP_USER_AGENT']);        if (!empty($data)){            curl_setopt($curl, CURLOPT_POST, 1);            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);        }        curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);        $output = curl_exec($curl);        curl_close($curl);        return $output;    }} //CI 控制器调用方法

/*  * 微信导航跳转地址  */ function wxLogin(){
       $this->load->model('Wx_model');     $this->Wx_model->userLogin(); } function wxOpenid(){
       $this->load->model('Wx_model');     $openid = $this->Wx_model->CodegetOpenid($_GET['code']);     if($openid){
           //查询数据库中是否存在         //不存在携带ID跳转登录 登录后绑定该ID         //存在获取信息直接登录     }else{
           //未获取到         //走正常登录     } }

//消息推送 $this->load->model('Wx_model');

$this->Wx_model->postNews('用户opendID','跳转地址URL','推送标题','用户姓名','开始时间','推送内容','备注');