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php微信网页授权代码(获取用户信息)

时间:2018-01-14 08:52 作者:QQ地带 我要评论

1.填写授权回调页面的域名  (注意只有服务号才可以页面授权)
 
登录公众平台-->开发者中心-->接口权限表
 
2.代码如下
 
scope为snsapi_base 那么用户必须是关注了公众号才能取得信息
 
index.php
 
//scope=snsapi_base 实例
$appid='你的AppId';
$redirect_uri = urlencode ( 'http://你的域名/getUserInfo.php' );
$url ="https://open.weixin.qq.com/connect/oauth2/authorize?appid=$appid&redirect_uri=$redirect_uri&response_type=code&scope=snsapi_base&state=1#wechat_redirect";
header("Location:".$url);
getUserInfo.php
 
$appid = "你的AppId";  
$secret = "你的AppSecret";  
$code = $_GET["code"];
 
//第一步:取全局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: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);
  
//第三步: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);
}
scope为snsapi_userinfo 用户不用关注公众号,也能取到信息,但是会有一个界面让用户去点击确认
 
index.php
 
$appid='你的AppId';
$redirect_uri = urlencode ( 'http://你的域名/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
 
$appid = "你的AppId";  
$secret = "你的AppSecret";  
$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);
  
//第二步:根据全局access_token和openid查询用户信息  
$access_token = $oauth2["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);
}

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