php如何实现发送微信模板消息

<?phpnamespace Org\Weixin;class OrderPush{    protected $appid;    protected $secrect;    protected $accessToken;    function  __construct($appid, $secrect)    {        $this->appid = $appid;        $this->secrect = $secrect;        $this->accessToken = $this->getToken($appid, $secrect);    }    /**     * 发送post请求     * @param string $url     * @param string $param     * @return bool|mixed     */    function request_post($url = '', $param = '')    {        if (empty($url) || empty($param)) {            return false;        }        $postUrl = $url;        $curlPost = $param;        $ch = curl_init(); //初始化curl        curl_setopt($ch, CURLOPT_URL, $postUrl); //抓取指定网页        curl_setopt($ch, CURLOPT_HEADER, 0); //设置header        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //要求结果为字符串且输出到屏幕上        curl_setopt($ch, CURLOPT_POST, 1); //post提交方式        curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost);        $data = curl_exec($ch); //运行curl        curl_close($ch);        return $data;    }    /**     * 发送get请求     * @param string $url     * @return bool|mixed     */    function request_get($url = '')    {        if (empty($url)) {            return false;        }        $ch = curl_init();        curl_setopt($ch, CURLOPT_URL, $url);        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);        $data = curl_exec($ch);        curl_close($ch);        return $data;    }    /**     * @param $appid     * @param $appsecret     * @return mixed     * 获取token     */    protected function getToken($appid, $appsecret)    {        if (S($appid)) {            $access_token = S($appid);        } else {            $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" . $appid . "&secret=" . $appsecret;            $token = $this->request_get($url);            $token = json_decode(stripslashes($token));            $arr = json_decode(json_encode($token), true);            $access_token = $arr['access_token'];            S($appid, $access_token, 720);        }        return $access_token;    }    /**     * 发送自定义的模板消息     * @param $touser     * @param $template_id     * @param $url     * @param $data     * @param string $topcolor     * @return bool     */    public function doSend($touser, $template_id, $url, $data, $topcolor = '#7B68EE')    {        /*         * data=>array(                'first'=>array('value'=>urlencode("您好,您已购买成功"),'color'=>"#743A3A"),                'name'=>array('value'=>urlencode("商品信息:微时代电影票"),'color'=>'#EEEEEE'),                'remark'=>array('value'=>urlencode('永久有效!密码为:1231313'),'color'=>'#FFFFFF'),            )         */        $template = array(            'touser' => $touser,            'template_id' => $template_id,            'url' => $url,            'topcolor' => $topcolor,            'data' => $data        );        $json_template = json_encode($template);        $url = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=" . $this->accessToken;        $dataRes = $this->request_post($url, urldecode($json_template));        if ($dataRes['errcode'] == 0) {            return true;        } else {            return false;        }    }}