用ThinkPHP做微信登陆的后台

微信小程序官方给了十分详细的登陆时序图，当然为了安全着想，应该加上签名加密。

微信小程序端

login: function(e) {
        var that = this;
        wx.login({
          success: function(res){
            var code = res.code;  //获取code
            wx.getUserInfo({  //得到rawData, signatrue, encryptData
              success: function(data){
                var rawData = data.rawData;
                var signature = data.signature;
                var encryptedData = data.encryptedData; 
                var iv = data.iv;
                wx.request({
                  url: '你自己的后台地址',
                  data: {
                    "code" : code,
                    "rawData" : rawData,
                    "signature" : signature,
                    'iv' : iv,
                    'encryptedData': encryptedData
                  },
                  method: 'GET', 
                  success: function(info){
                    console.log(info);
                  }
                })
              }
            })
          },
        })
    }