小程序存在, 并做了支付, 公众号是后来申请的, 并在商户里关联了小程序和公众号, 小程序和公众号里的微信支付显示已申请,接口权限里也获得了微信支付 [图片][图片] 现在的情况是, 利用小程序的openid去后台php，请求支付页面时，是正常的。 然后H5里调用了公众号接口JSSDK,获取到了openid和头像、昵称。 但在利用这个公众号的openid去后台PHP，请求支付页面时， 报错：商户传的appid参数不正确，请联系商户处理。

小程序前端通过请求ajax后端PHP接口： // 前端小程序向后端请求数据 getUserDataByOpenid: function (wx_openid) { var send_data = { wx_id: wx_openid } var that = this; var send_str = JSON.stringify(send_data); var path_str = config.DOMAIN + config.WEB_NAME + config.GET_USERDATABYOPENID_HOST; wx.request({ method: "post", url: path_str, header: { 'Content-Type': 'application/json' }, data: send_str, success: function (res) { var arr = res.data; if (arr['error_info'] != "") { return; } var user = res.data.data; save.set_local_userinfo('ss_user_id', user.user_id); app.globalData.userData = user; that.setData({ btnType: "primary" }); }, fail: function () { console.log('服务器异常'); wx.showToast({ title: '服务器异常', icon: 'none', duration: 1500 }) }, complete: function () { that.setData({ showButton: true }); } }); }, // 后端TP5接收请求的入口     public function get_user_data_by_openid()     {         Log::record('进入时间：'.date("Y-m-d H:i:s"));         $data_ary=[];         $data_ary['error_info'] = "";         $data_ary['data'] = "321";         push_data($data_ary);     } 每次请求到达后端入口，20秒以后服务器才输出日志。有时候小程序直接返回fail,报“服务器异常”。 我试着直接在chrome地址栏访问后端get_user_data_by_openid()接口，结果耗时21秒，如下图。[图片] 我想请问的是，这是什么原因？应该如何解决？谢谢。

(unknown) App: onLaunch have been invoked (unknown) App: onShow have been invoked (unknown) Register: pages/index/index (unknown) Register: pages/provider/provider (unknown) Register: pages/requester/requester (unknown) Register: pages/test/test (unknown) Register: pages/products/products (unknown) Register: pages/callloading/callloading (unknown) Register: pages/licence/licence (unknown) Register: pages/user/user VM33:2 On app route: pages/index/index VM33:2 Update view with init data VM33:2 pages/index/index: onLoad have been invoked index.js? [sm]:97 index.onLoad fromOpid = undefined VM33:2 pages/index/index: onShow have been invoked index.js? [sm]:153 index.onShow VM33:2 Invoke event onReady in page: pages/index/index VM33:2 pages/index/index: onReady have been invoked index.js? [sm]:136 index.onReady 请问这是什么问题? 如何解决?