对接微信授权登录接口_tp3.2

参考文档:

1. tp5微信开发（一） ---- 微信公众号配置tokenhttps://blog.csdn.net/qq_27987023/article/details/82861521
2. 微信公众号token验证失败解决方法——phphttps://blog.csdn.net/u012729832/article/details/79754095
3. 基于ThinkPHP3.2.3的微信OAuth2.0微信网页授权，微信公众号网页登录，获取用户基本信息https://blog.csdn.net/longgeaisisi/article/details/86077364

 

 遇到的问题:

　　2019/06/27

1. 微信测试添加不上url/token验证失败

 1 <?php
 2 namespace Home\Controller;
 3 use Home\Controller\ShareController;
 4 /**
 5   * wechat授权登录
 6   */
 7 
 8 //define your token
 9 define("TOKEN", "qiu37");
10 
11 class WechatcallbackapiController extends ShareController{
12     public function __construct() {
13         parent::__construct();
14         $this->user = D('me');
15         $this->appId = 'wx6b6021a20a024697';
16         $this->appSecret = 'ac12bf81db7992b4935f32082079af13';
17         $this->valid();
18     }
19 
20 
21     //微信授权登录
22     public function wxLogin(){
23         // 回调的url
24         $redirect_uri = urlencode('http://m68cna.natappfree.cc/pow/home/Wechatcallbackapi/getUserInfo');
25         //跳转微信回调到redirect_uri获取code
26         $url ="https://open.weixin.qq.com/connect/oauth2/authorize?appid=".$this->appId."&redirect_uri=".$redirect_uri."&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect";
27 
28         header('Location:'.$url);
29     }
30 
31     //获取用户信息
32     public function getUserInfo(){
33         $code = $_GET["code"];
34         $url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$this->appId."&secret=".$this->appSecret."&code=".$code."&grant_type=authorization_code";
35         $res = $this->sendRequest($url);
36         $access_token = $res["access_token"];
37         $openId  = $res['openid'];
38         $getUserInfo = "https://api.weixin.qq.com/sns/userinfo?access_token=$access_token&openid=$openId&lang=zh_CN";
39         $user_info = $this->sendRequest($getUserInfo);
40         if ($userInfo = $this->user->getUserByOpenid($user_info['openid'])){
41             session('currentUserId',$userInfo['id']);
42             return $this->ajaxSuccess('登录成功',0);
43         }else{
44             unset($user_info['privilege']);
45             $res = $this->user->saveWechatUser($user_info);
46             session('currentUserId',$userInfo['id']);
47             if ( $res ){
48                 return $this->ajaxSuccess('登录成功',0);
49             }else{
50                 return $this->ajaxError('登录失败',3);
51             }
52         }
53 
54 
55     }
56 
57     //发送请求
58     public function sendRequest($url){
59         $ch = curl_init();
60         curl_setopt($ch, CURLOPT_URL, $url);
61         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
62         curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
63         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
64         $output = curl_exec($ch);
65         curl_close($ch);
66         return json_decode($output, true);
67     }
68 
69     //微信验证
70     public function valid()
71     {
72         $echoStr = $_GET["echostr"];
73         //valid signature , option
74         if ($this->checkSignature()) {
75             echo $echoStr;
76             exit;
77         }
78     }
79 
80     //检查微信签名
81     private function checkSignature(){
82         $signature = $_GET["signature"];
83         $timestamp = $_GET["timestamp"];
84         $nonce = $_GET["nonce"];
85         $token = TOKEN;
86         $tmpArr = array($token, $timestamp, $nonce);
87         sort($tmpArr);
88         $tmpStr = implode( $tmpArr );
89         $tmpStr = sha1( $tmpStr );
90         if( $tmpStr == $signature ){
91             return true;
92         }else{
93             return false;
94         }
95     }
96 }