PHP實現微信掃碼自動登錄與註冊，參考實例

 

微信開發已是如今phper必需要掌握的一項基本的技術了,其實作過微信開發的都知道微信接口很是的強大作起來也很是的簡單,這裏咱們一塊兒來看一個微信自動登錄註冊的例子.

php 微信掃碼 pc端自動登錄註冊 用的接口scope 是snsapi_userinfo,

微信登錄一個是網頁受權登錄，另外一個是微信聯合登錄

網頁受權登錄:

http://mp.weixin.qq.com/wiki/17/c0f37d5704f0b64713d5d2c37b468d75.html

微信聯合登錄：

https://open.weixin.qq.com/cgi-bin/frame?t=home/web_tmpl&lang=zh_CN

1、首先把微信連接帶個標識生成二維碼

好比連接爲

https://open.weixin.qq.com/connect/oauth2/authorize?appid='.$appid.'&redirect_uri='.$url.'&response_type=code&scope=snsapi_userinfo&state=1#wechat_redirect'

咱們能夠在state上作文章，由於state你傳入什麼微信那邊返回什麼，能夠做爲服務器與微信段的一個標識:

 1 public function creatqrAction(){
 2 if($_GET['app']){
 3 $wtoken=$_COOKIE['wtoken'];
 4 $postdata=$_SESSION['w_state'];
 5 if($wtoken){
 6 $postdata=$wtoken;
 7 }
 8 include CONFIG_PATH . 'phpqrcode/'.'phpqrcode.php'
 9 $sh=$this->shar1();
10 $value="https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx138697ef383a9167&redirect_uri=http://www.xxx.net/login/wcallback&response_type=code&scope=snsapi_userinfo&state=".$postdata."&connect_redirect=1#wechat_redirect";
11 $errorCorrectionLevel = "L";
12 $matrixPointSize = "5";
13 QRcode::png($value, false, $errorCorrectionLevel, $matrixPointSize);
14 }
15 }

 

此時生成了二維碼 state是標識，phpqrcode能夠在文章末尾下載,這樣咱們設置了回調地址http://www.xxx.net/login/wcallback

就能夠在wcallback方法裏面處理數據 插入用戶 生成session，跳轉登錄，pc端能夠設置幾秒鐘ajax請求服務器，一旦獲取到了state,即實現調整，微信瀏覽器裏處理完後能夠關閉窗口,微信js可實現:

document.addEventListener('WeixinJSBridgeReady', function onBridgeReady() {
WeixinJSBridge.call('closeWindow');}, false);

也能夠受權登錄成功後跳轉到微信服務號關注頁面:

 1 header("Location: weixin://profile/gh_a5e1959f9a4e");
 2 wcallback方法作處理登錄
 3 $code = $_GET['code'];
 4 $state = $_GET['state'];
 5 $setting = include CONFIG_PATH . 'setting.php'
 6 $appid=$setting['weixin']['appid'];
 7 $appsecret=$setting['weixin']['appsecret'];
 8 if (emptyempty($code)) $this->showMessage('受權失敗');
 9 try{
10 $token_url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid='.$appid.'&secret='.$appsecret.'&code='.$code.'&grant_type=authorization_code'
11 $token = json_decode($this->https_request($token_url));
12 }catch(Exception $e)
13 {
14 print_r($e);
15 }
16 if (isset($token->errcode)) {
17 echo '錯誤：'.$token->errcode;
18 echo '錯誤信息：'.$token->errmsg;
19 exit;
20 }
21 $access_token_url = 'https://api.weixin.qq.com/sns/oauth2/refresh_token?appid='.$appid.'&grant_type=refresh_token&refresh_token='.$token->refresh_token;
22 //轉成對象
23 $access_token = json_decode($this->https_request($access_token_url));
24 if (isset($access_token->errcode)) {
25 echo '錯誤：'.$access_token->errcode;
26 echo '錯誤信息：'.$access_token->errmsg;
27 exit;
28 }
29 $user_info_url = 'https://api.weixin.qq.com/sns/userinfo?access_token='.$access_token->access_token.'&openid='.$access_token->openid.'&lang=zh_CN'
30 //轉成對象
31 $user_info = json_decode($this->https_request($user_info_url));
32 if (isset($user_info->errcode)) {
33 echo '錯誤：'.$user_info->errcode;
34 echo '錯誤信息：'.$user_info->errmsg;
35 exit;
36 }
37 //打印用戶信息
38 // echo ''
39 // print_r($user_info);
40 // echo ''

 

phpqrcode類庫下載在此不提供各位能夠百度搜索下載

magento微信掃碼網站自動登陸的例子
https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&lang=zh_CN

查看受權後接口調用（UnionID），不難發現填寫回調地址，用戶確認登錄pc端便可跳轉

 

獲取UnionID方法

 1 public function wcallbackAction(){
 2 $code = $_GET['code'];
 3 $state = $_GET['state'];
 4 $setting = include CONFIG_PATH . 'setting.php';
 5 $appid=$setting['weixin']['appid'];
 6 $appsecret=$setting['weixin']['appsecret'];
 7 if (emptyempty($code)) $this->showMessage('受權失敗');
 8 try{
 9 $token_url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid='.$appid.'&secret='.$appsecret.'&code='.$code.'&grant_type=authorization_code';
10 $token = json_decode($this->https_request($token_url));
11 }catch(Exception $e)
12 {
13 print_r($e);
14 }
15 if (isset($token->errcode)) {
16 echo '<h1>錯誤：</h1>'.$token->errcode;
17 echo '<br/><h2>錯誤信息：</h2>'.$token->errmsg;
18 exit;
19 }
20 $access_token_url = 'https://api.weixin.qq.com/sns/oauth2/refresh_token?appid='.$appid.'&grant_type=refresh_token&refresh_token='.$token->refresh_token;
21 //轉成對象
22 $access_token = json_decode($this->https_request($access_token_url));
23 if (isset($access_token->errcode)) {
24 echo '<h1>錯誤：</h1>'.$access_token->errcode;
25 echo '<br/><h2>錯誤信息：</h2>'.$access_token->errmsg;
26 exit;
27 }
28 $user_info_url = 'https://api.weixin.qq.com/sns/userinfo?access_token='.$access_token->access_token.'&openid='.$access_token->openid.'&lang=zh_CN';
29 //轉成對象
30 $user_info = json_decode($this->https_request($user_info_url));
31 if (isset($user_info->errcode)) {
32 echo '<h1>錯誤：</h1>'.$user_info->errcode;
33 echo '<br/><h2>錯誤信息：</h2>'.$user_info->errmsg;
34 exit;
35 }
36 //打印用戶信息
37 // echo '<pre>';
38 // print_r($user_info);
39 // echo '</pre>';
40 //獲取unionid
41 $uid=$user_info->unionid;
42 }
43 //用戶操做處理 分爲再次登陸和第一次登錄
44 $sql="select h_user_id from dtb_user_binded as t1 left join dtb_user_weixin as t2 on t1.u_id=t2.id where t1.u_type='".
45 User::$arrUtype['weixin_num_t']."' and t2.openid='$user_info->unionid'";
46 $h_user_id = Core_Db::getOne($sql);
47 if(!emptyempty($h_user_id)){//該weixin號再次登陸
48 }{//該weixin號第一次登陸
49 }