PHP实现微信扫码登录功能的两种方式总结_php技巧_

$redirect_uri="http://你的微信开放平台绑定域名下处理扫码事件的方法"; $redirect_uri=urlencode($redirect_uri);//该回调需要url编码 $appID="你的appid"; $scope="snsapi_login";//写死，微信暂时只支持这个值 //准备向微信发请求 $url = "https://open.weixin.qq.com/connect/qrconnect?appid=" . $appID."&redirect_uri=".$redirect_uri ."&response_type=code&scope=".$scope."&state=STATE#wechat_redirect"; //请求返回的结果(实际上是个html的字符串) $result = file_get_contents($url); //替换图片的src才能显示二维码 $result = str_replace("/connect/qrcode/", "https://open.weixin.qq.com/connect/qrcode/", $result); return $result; //返回页面 

https://www.xxx.xxx/lims/web/wechat/login.html 

微信登录
扫描成功
请在微信中点击确认即可登录

 /** * @name: 微信扫码登陆回调（不跳页二维码） * @author: camellia * @date: 2020-12-25 11:47:17 */ public function wxlogin_notice(Request $request) { $code = $request->input("code"); if (!empty($code)) { $jsonResult = ''; if($jsonResult == '') { //通过code获得 access_token + openid $url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=" . $this->appid . "&secret=" . $this->appsecret . "&code=" . $code . "&grant_type=authorization_code"; $jsonResult = file_get_contents($url); } // 对象转数组 $resultArray = json_decode($jsonResult, true); $access_token = $resultArray["access_token"]; $openid = $resultArray["openid"]; //通过access_token + openid 获得用户所有信息,结果全部存储在$infoArray里,后面再写自己的代码逻辑 $infoUrl = "https://api.weixin.qq.com/sns/userinfo?access_token=" . $access_token . "&openid=" . $openid; $infoResult = file_get_contents($infoUrl); $infoArray = json_decode($infoResult, true); // 没有unionid ，跳官网 if (!isset($infoArray['unionid'])) { // echo "";die; $result['code'] = -1; $result['msg'] = '登录失败，用户信息错误！'; return $result; } // 获取unionid $unionid = $infoArray['unionid']; $userinfo = DB::table('user')->where('unionid', $unionid)->first(); $userinfObj = json_decode(json_encode($userinfo), true); if ($userinfo) { // 存session $request->session()->put('userinfo', $userinfObj); // $session = $this->getSession($request); // var_dump($session);die; // 教师跳页 if (($userinfo->type == 9) || ($userinfo->type == 1 && $userinfo->islogin == 9)) { // echo "";die; $result['code'] = 1; $result['msg'] = '登录成功'; $result['type'] = $userinfo->type; return $result; } else if ($userinfo->type == 1 && $userinfo->islogin >= 3) { // 学生跳页 // echo "";die; $result['code'] = 2; $result['msg'] = '登录成功'; $result['type'] = $userinfo->type; return $result; } else if($userinfo->type == 0) { // echo "";die; $result['code'] = 3; $result['msg'] = '登录成功'; $result['type'] = $userinfo->type; return $result; } else { // 无效用户跳至官网 // echo "";die; $result['code'] =-2; $result['msg'] = '用户身份有误！'; return $result; } } else { // echo "";die; $result['code'] = -3; $result['msg'] = '用户身份有误！'; return $result; } } else { // echo "";die; $result['code'] = -4; $result['msg'] = '登录失败，请重试！'; return $result; } }