第一步：获取token,第二部调用接口直接生成
public function menu()
{

    header("Content-type: text/html; charset=utf-8");
    define("ACCESS_TOKEN", "39_wIS8qf5dx8ZShK79CEGyNWC-985G5VSYuR0oANKBo-w_aesIzz8sDeJdFnGZLq0_GGk_tvvlIHz8o0jCY8XuoAneDw9XBf1ABZd6dAR8FtpatSz0B6-gDZ6tIN8JwXFNlkACU-UdZdofSpIESOEcAGAWSI");

    $data = '{
          "button":[
           {
           "name":"带我看",
           "sub_button":[
           {
            "type":"view",
            "name":"快速了解",
            "url":"http://baidu.com"
           }]
  
          },
           {
           "name":"即刻体验",
           "sub_button":[
           {
            "type":"view",
            "name":"Android版",
            "url":"http://baidu.com"
           },
           {
            "type":"view",
            "name":"iOS版",
            "url":"http://baidu.com"
           }]
  
          },
          {
           "name":"精彩活动",
           "sub_button":[
           {
            "type":"view",
            "name":"最美母校投票活动",
             "url":"http://baidu.com"
           }]
  
          }
 
 ]
        }';
    $ch = curl_init();
    //curl_setopt($ch, CURLOPT_URL, "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=".ACCESS_TOKEN);

    curl_setopt($ch, CURLOPT_URL, "https://api.weixin.qq.com/cgi-bin/token?  grant_type=client_credential&appid=111&secret=333");

    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
   // curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $tmpInfo = curl_exec($ch);
    if (curl_errno($ch)) {
        return curl_error($ch);
    }
    curl_close($ch);
    var_dump($tmpInfo);


}