<form bindsubmit="sub" report-submit="true">
     <button formType="submit">确认发布</button>
</form>

Page({
  // 页面的初始数据
  data: {},
  sub: function (e) {
    console.log(e.detail.formId); // 获取formId，发送至服务器端
  }
});

// 发送get请求
function curlGet($url){
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    $output = curl_exec($curl);
    if(curl_errno($curl)){
        return \'ERROR \' . curl_error($curl);
    }
    curl_close($curl);
    return $output;
}

// 获取小程序用户access_token
function getToken(){
    $appid = \'小程序公众平台中的APPID\'; // 注意！！！
    $appsecret = \'小程序公众平台中的APPSECRET\'; // 注意！！！
    $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$appid}&secret={$appsecret}";
    $output = curlGet($url);
    $result = json_decode($output, true);
    return $result[\'access_token\'];
}

// 发送通知
function sendNotice(){
    $access_token = getToken();
    $url = \'https://api.weixin.qq.com/cgi-bin/message/wxopen/template/send?access_token=\' . $access_token;
    $post_data = [
        \'touser\'           => \'openid\', // 用户的 openID，可用过 wx.getUserInfo 获取
        \'template_id\'      => \'SNZQnzYFJMwwgRp3Oh2fvI_PHp_SQWqZzpiXLP3pSJI\', // 小程序后台申请到的模板编号
        \'page\'             => \'/pages/index/index\', // 点击模板消息后跳转到的页面，可以传递参数
        \'form_id\'          => $formid, // 第一步里获取到的 formID
        \'data\'             => [
            \'keyword1\' => [\'value\' => \'信息1\'],
            \'keyword2\' => [\'value\' => \'信息2\'],
            \'keyword3\' => [\'value\' => \'信息3\']
        ],
        \'emphasis_keyword\' => \'\' // 需要强调的关键字，会加大居中显示
    ];
    $data = json_encode($post_data, true);
    $options = [
        \'http\' => [
            \'method\'  => \'POST\',
            \'header\'  => \'Content-type:application/json\', // header 需要设置为 JSON
            \'content\' => $data,
            \'timeout\' => 60 // 超时时间
        ]
    ];
    $context = stream_context_create($options);
    $result = file_get_contents($url, false, $context);
    return $result;
}