php - 微信自定义菜单没有返回值的问题

Question

我直接打开这个页面 也没报错也没有打印出来任何数据 微信也不显示自定义菜单 这是为什么？

$wx = new php100_weixin_button();
$wx->app_menu();

class php100_weixin_button {

    public $appid = "wx226d9bfeb7d12387";
    public $appsecret = "496648774734cf46ec999ba75826bc2e";
    
    public function access_token() {
        $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$this->appid}&secret={$this->appsecret}";
        $cont = file_get_contents($url);
        return json_decode($cont, 1);
    }

    function app_menu() {
        $data = ' {
             "button":[
             {    
                 "name":"PHP100",
                 "sub_button":[
                    {
                       "type":"click",
                       "name":"互联网热点",
                       "key":"A1"
                    },
                    {
                       "type":"click",
                       "name":"个人中心",
                       "key":"A5"
                    }]
              },
              {
                   "name":"编程助手",
                   "sub_button":[
                    {
                       "type":"click",
                       "name":"函数查询",
                       "key":"B2"
                    },
                    {,
                    {
                       "type":"click",
                       "name":"培训与课程",
                       "key":"B5"
                    }]
              },
              {
                   "name":"自娱自乐",
                   "sub_button":[
                    {
                       "type":"click",
                       "name":"发布心情",
                       "key":"C1"
                    },
                    {
                       "type":"click",
                       "name":"免费与优惠",
                       "key":"C3"
                    }]
               }]
             }';
        $access_token = $this -> access_token();
        $ch = curl_init('https://api.weixin.qq.com/cgi-bin/menu/create?access_token=' . $access_token['access_token']);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json', 'Content-Length: ' . strlen($data)));
        $data = curl_exec($ch);
        print_r($data);
    }
}

Answer 1

$error = curl_error($ch);把错误打出来看一下哇

Answer 2

我用的测试号 服务器配置验证也都成功了 打开这个页面如果正确的话页面应该显示这个{"errcode":0,"errmsg":"ok"}吧 可是页面什么都不显示