appId = C('WX_APPID');        $this -> appSecret = C('WX_SECRET');    }    function add_material() {        $file_info = array('filename' => '/Public/1111.jpg', //国片相对于网站根目录的路径        'content-type' => 'image/jpg', //文件类型        'filelength' => '71' //图文大小        );        dump($file_info);        $access_token = $this -> get_access_token();        $url = "https://api.weixin.qq.com/cgi-bin/material/add_material?access_token={$access_token}&type=image";        $ch1 = curl_init();        $timeout = 5;        $real_path = "{$_SERVER['DOCUMENT_ROOT']}{$file_info['filename']}";        //$real_path=str_replace("/", "//", $real_path);        $data = array("media" => "@{$real_path}", 'form-data' => $file_info);        curl_setopt($ch1, CURLOPT_URL, $url);        curl_setopt($ch1, CURLOPT_POST, 1);        curl_setopt($ch1, CURLOPT_RETURNTRANSFER, 1);        curl_setopt($ch1, CURLOPT_CONNECTTIMEOUT, $timeout);        curl_setopt($ch1, CURLOPT_SSL_VERIFYPEER, FALSE);        curl_setopt($ch1, CURLOPT_SSL_VERIFYHOST, false);        curl_setopt($ch1, CURLOPT_POSTFIELDS, $data);        $result = curl_exec($ch1);        curl_close($ch1);        if (curl_errno() == 0) {            $result = json_decode($result, true);            var_dump($result);            return $result['media_id'];        } else {            return false;        }    }    //  =====================================    //  = 获取微信公众号的 access_token=    //  =====================================    private function get_access_token() {        $m_appact = M('Appact', 'ot_', DB_GY);        $data = $m_appact -> where(array('appid' => $this -> appId)) -> field('access_token,expire_time') -> find();        if ($data['expire_time'] < time()) {            $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";            $res = json_decode($this -> httpGet($url));            $access_token = $res -> access_token;            if ($access_token) {                $data['expire_time'] = time() + 7000;                $data['access_token'] = $access_token;                $r = $m_appact -> where(array('appid' => $this -> appId)) -> find();                $save_arr = array('access_token' => $data['access_token'], 'expire_time' => $data['expire_time']);                $add_arr = array('appid' => $this -> appId, 'access_token' => $data['access_token'], 'expire_time' => $data['expire_time']);                $r ? $m_appact -> where(array('appid' => $this -> appId)) -> save($save_arr) : $m_appact -> add($add_arr);            }        } else {            $access_token = $data['access_token'];        }        return $access_token;    }    private function httpGet($url) {        $curl = curl_init();        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);        curl_setopt($curl, CURLOPT_TIMEOUT, 500);        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);        curl_setopt($curl, CURLOPT_URL, $url);        $res = curl_exec($curl);        curl_close($curl);        return $res;    }}