微信小程序登录及获取手机号码

前端：微信先授权登录后再授权获取手机号码

后端：先微信登录获取openid返回前端，前端再传递手机号码code给后端获取手机号码并在本地数据量注册用户信息，需提供2个接口

第一步：先通过code微信授权登录获取openid

$url = 'https://api.weixin.qq.com/sns/jscode2session?appid=' . $this->appid . '&secret=' . $this->app_secret . '&js_code=' . $code . '&grant_type=authorization_code';$this->curl->get($url);if ($this->curl->error) {    return ['status' => 0, 'msg' => '微信获取授权失败'];}$result = json_decode($this->curl->response,true);if (isset($result['openid']) && $result['openid'] != '') {    return ['status' => 1, 'msg' => '成功', 'data' => $result];}else{    return ['status' => 0, 'msg' => '微信获取授权失败-' . $result['errmsg']];}

第二步：根据app_id和app_secret获取access_token

$url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=' . $this->appid . '&secret=' . $this->app_secret;$this->curl->get($url);if ($this->curl->error) {    return ['status' => 0, 'msg' => '微信获取access_token失败'];}$result = json_decode($this->curl->response,true);

第三步：根据前端获取到的允许获取手机号的code和后端获取到的access_token通过api获取手机号码

$access_token = $this->getAccessToken($openid);if($access_token['status'] == 0){    return ['status' => 0, 'msg' => $access_token['msg']];}$token = $access_token['data']['token'];$url = 'https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=' . $token;$data['code'] = $code;$this->curl->post($url, json_encode($data));if ($this->curl->error) {    return ['status' => 0, 'msg' => '微信获取用户手机号失败'];}$result = json_decode($this->curl->response, true);if (isset($result['errcode']) && $result['errcode'] == 0) {    return ['status' => 1, 'msg' => '成功', 'data' => $result['phone_info']];} else {    return ['status' => 0, 'msg' => '微信获取用户手机号失败-' . $result['errmsg']];}

来源地址：https://blog.csdn.net/zyj_15067066062/article/details/129257042