1 <?php
 2 
 3 
 4 /*********************************
 5  * 微信相关工具类
　　**********************************/
 9 class wechat_util{
10     const WC_APPID = ‘‘; //微信公众号身份的唯一标识。审核通过后，在微信发送的邮件中查看
11     const WC_APP_SECRET = ‘‘;//JSAPI接口中获取openid，审核后在公众平台开启开发模式后可查看
12     /**
13      * 获取用户的code
14      */
15     public function getUserCodeOp()
16     {
17         $redirect_uri = ‘‘; //回调地址，自行设置为自己网站地址和请求参数
18         $state = ‘yarkool‘;
19         $scope = ‘snsapi_base‘;
20         //不弹出授权页面
21         $get_code_url = ‘https://open.weixin.qq.com/connect/oauth2/authorize?appid=‘ .self::WC_APPID . ‘&redirect_uri=‘ . urlencode($redirect_uri) . ‘&response_type=code&scope=‘ . $scope . ‘&state=‘ . $state . ‘#wechat_redirect‘;
22         header("Location:" . $get_code_url);
23     }
24     //获取用户信息
25     public function getUserCodeCallbackOp()
26     {
27         $code = $_GET["code"];
28         $get_base_token_url = ‘https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=‘ . self::WC_APPID . ‘&secret=‘ . self::WC_APP_SECRET;
29         $base_token = $this->curl_request($get_base_token_url);
30         $access_token = $base_token[‘access_token‘];
31         //通过网页授权获取用户openid
32         $get_token_url = ‘https://api.weixin.qq.com/sns/oauth2/access_token?appid=‘ . self::WC_APPID . ‘&secret=‘ . self::WC_APP_SECRET . ‘&code=‘ . $code . ‘&grant_type=authorization_code‘;
33         $token_obj = $this->curl_request($get_token_url);
34         //根据openid和基础支持的access_token查询用户信息
35         $openid = $token_obj[‘openid‘];
36         $get_user_url = ‘https://api.weixin.qq.com/cgi-bin/user/info?access_token=‘ . $access_token . ‘&openid&openid=‘ . $openid . ‘&lang‘;
37         $user_obj = $this->curl_request($get_user_url);
38 
39         //可对用户信息做处理，如存到数据库
40         if ($user_obj[‘openid‘]) {
41             $headurl = $user_obj[‘headimgurl‘]; //用户头像地址
42             $nickname = $user_obj[‘nickname‘];//用户昵称
43              
44         }
45         //获取到信息后自行操作
46         $index_url = "";
47         header("Location:" . $index_url);
48 
49     }
50     /**
51      * curl请求
52      */
53     private function curl_request($url)
54     {
55         $ch = curl_init();
56         //设置超时
57         curl_setopt($ch, CURLOPT_TIMEOUT, 30);
58         curl_setopt($ch, CURLOPT_URL, $url);
59         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
60         curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
61         curl_setopt($ch, CURLOPT_HEADER, FALSE);
62         curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
63         //运行curl，结果以jason形式返回
64         $res = curl_exec($ch);
65         curl_close($ch);
66         $json_obj = json_decode($res, true);
67         return $json_obj;
68     }
69 }
70 
71 ?>