微信用户授权

/**
 * 获取微信用户信息
 * @author: Lucky hypo
 */

header("Content-type: text/html; charset=utf-8");

define('APPID', "wx74702adfdc3b62ca");
define('APPSECRET', "ce35943077594874a578aaeefdc09573");

class class_weixin{
    var $appid = APPID;
    var $appsecret = APPSECRET;

//构造函数，获取Access Token
    public function __construct($appid = NULL, $appsecret = NULL)
    {
        if ($appid && $appsecret) {
            $this->appid = $appid;
            $this->appsecret = $appsecret;
        }
    }

//生成扫码登录的URL
    public function qrconnect($redirect_url, $scope, $state = NULL){
      //  $url = "https://open.weixin.qq.com/connect/qrconnect?appid=" . $this->appid . "&redirect_uri=" . urlencode($redirect_url) . "&response_type=code&scope=" . $scope . "&state=" . $state . "#wechat_redirect";
         $url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid=' . APPID. '&redirect_uri=' . urlencode($redirect_url) .  '&response_type=code&scope=' . $scope . '&state=' . $state . '#wechat_redirect';
        return $url;
    }

//生成OAuth2的Access Token
    public function oauth2_access_token($code)
    {
        $url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=" . $this->appid . "&secret=" . $this->appsecret . "&code=" . $code . "&grant_type=authorization_code";
        $res = $this->http_request($url);
        return json_decode($res, true);
    }

//获取用户基本信息（OAuth2 授权的 Access Token 获取 未关注用户，Access Token为临时获取）
    public function oauth2_get_user_info($access_token, $openid)
    {
        $url = "https://api.weixin.qq.com/sns/userinfo?access_token=" . $access_token . "&openid=" . $openid . "&lang=zh_CN";
        $res = $this->http_request($url);
        return json_decode($res, true);
    }

//HTTP请求（支持HTTP/HTTPS，支持GET/POST）
    protected function http_request($url, $data = null)
    {
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
        if (!empty($data)) {
            curl_setopt($curl, CURLOPT_POST, 1);
            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        }
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
        $output = curl_exec($curl);
        curl_close($curl);
        return $output;
    }
}

//header("Content-type: text/html; charset=utf-8");
//require_once('wxopen.class.php');
$weixin = new class_weixin();
if (!isset($_GET["code"])){
    $redirect_url = '';  //注意这里写你的授权地址即可
    $jumpurl = $weixin->qrconnect($redirect_url, "snsapi_base", "123");
    header("Location: $jumpurl");
}else {
    $oauth2_info = $weixin->oauth2_access_token($_GET["code"]);
    $userinfo = $weixin->oauth2_get_user_info($oauth2_info['access_token'], $oauth2_info['openid']);
  //  header("Location: host805101609.s652.pppf.com.cn/wxopen/noticy.php?code={$_GET['code']}&state=123");
    var_dump($userinfo);
}

?>