微信登錄驗證

1、步驟

 

 

 

 

 

2、實現

　　准備：打開測試賬號頁，搜索【授權】設置安全回調域名或ip

　　

 

 

 

 步驟1：組裝url用來獲取code （通過開發者工具訪問）

https://open.weixin.qq.com/connect/oauth2/authorize?appid=自己的APPID&redirect_uri=http://自己的網址/login.php&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect

步驟2：創建login.php根據code獲取openid和access_token

< ？php
#1.獲取code
$code = $_GET['code'];

#2.獲取openid和accessiontoken
$apiData = array(
'appid'=>'wx56e3e3d75414b3d0',
'secret'=>'f8ec8178c6dda48d1cb25c07304eff44',
'code'=> $code,
'grant_type'=>'authorization_code'
);
$api = "https://api.weixin.qq.com/sns/oauth2/access_token?".http_build_query($apiData);
$data = json_decode(file_get_contents($api), true);

// echo $data['access_token'];
// echo '<hr/>';
// echo $data['openid'];

# 步驟3：根據openid和access_token獲取用戶信息
$apiData = array(
'access_token'=> $data['access_token'],
'openid'=> $data['openid'],
'lang'=>'zh_CN'
);
$api = "https://api.weixin.qq.com/sns/userinfo?".http_build_query($apiData);
$data = json_decode(file_get_contents($api), true);

echo '<pre>';
print_r($data);