微信客户端中访问第三方网页,公众号可以通过微信网页授权机制,来获取用户基本信息,进而实现业务逻辑。
以snsapi_userinfo为scope发起的网页授权,是用来获取用户的基本信息的。
//login.php 授权登录进行回调 <?php //scope=snsapi_userinfo实例 $appid='wxcf50cf****f2fffb';//$appid为自己公众号的配置appid $redirect_uri = urlencode ( 'http://www.********.cn/getUserInfo.php' ); $url ="https://open.weixin.qq.com/connect/oauth2/authorize?appid=$appid&redirect_uri=$redirect_uri&response_type=code&scope=snsapi_userinfo&state=1#wechat_redirect"; header("Location:".$url); ?>
//getUserInfo.php 获取用户的信息
<?php $appid = "wxcf50cf****f2fffb"; //$appid为自己公众号的配置appid $secret = "82fd792e5e******fc09716ee80c629a"; //$secret为自己公众号的密钥secret $code = $_GET["code"]; //第一步:取得openid $oauth2Url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=$appid&secret=$secret&code=$code&grant_type=authorization_code"; $oauth2 = getJson($oauth2Url); //取得access_token $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$appid&secret=$secret"; $token = getJson($url); //第二步:根据全局access_token和openid查询用户信息 $access_token = $token["access_token"]; $openid = $oauth2['openid']; $get_user_info_url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=$access_token&openid=$openid&lang=zh_CN"; $userinfo = getJson($get_user_info_url); //打印用户信息 print_r($userinfo); function getJson($url){ $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $output = curl_exec($ch); curl_close($ch); return json_decode($output, true); } ?>
详细的解析
http://mp.weixin.qq.com/wiki/4/9ac2e7b1f1d22e9e57260f6553822520.html