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微信授权登录获取openId和unionId

发表时间： 2016-10-14 14:10:03 | 浏览次数：

小编今天在写完上一篇文章的时候，发现微信登录可直接获取到unionId了，不需要通过openId获取了，感觉上一篇文章又白写了。。。
那应该是小编昨天将公众平台和开放平台进行了绑定，所以返回的数据上带有unionId，不过只是小编的猜测，还没证实，如果是这样的话，那上一篇文章就没白写，哈哈。
大家按照自己的需求使用相应的代码吧。
未绑定之前授权登录返回的数据
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Array(
    [access_token] => 4A5T0uMIxn6jTZuRqkIqqN3gvgZ44oowfAlg5idlsayHR2KvNYpaXD0z_T8IooStg09k_LwczeoVuFo1D2ROINSDmJxVv5jhqLlFOsRahaI
    [expires_in] => 7200
    [refresh_token] => Ke6xysXtrLA90gCSIvyI1UdTNpuTzpjoAF8zsSO92QGGyM8nuB-zOpxC_G39i-feHvzENf2a2V0cJrh7khtwkw5KVWT3mvthVyEs_l-N9pw
    [openid] => o4Qp7jutSavCjhydjhPadfasa15g
    [scope] => snsapi_userinfo
)

绑定之后授权登录返回的数据
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Array(
    [access_token] => ieUCVH5t2GlMP_oLJduw2mIcNrWNrdMlGMNeLKscazRkFsT0dQbkjQ7pMuanVv4UWJ__oFG3dTfe1LeUC7Phw0BR-uoZ3ewSUKnsioj9Q2U
    [expires_in] => 7200
    [refresh_token] => JE2jcXDmSGlzZxErTEvezqpURZ-llh7MM_bMIoRIjU3hfGc85SgK7Bp6eO25RQd4ctNIb3aV35aPQeMaNb0AyQo2Sl3WPPixbOsGDIe6gjo
    [openid] => oSKzJvk9Uasfasdfylk3b-frjuo
    [scope] => snsapi_userinfo
    [unionid] => ozv7awqyc4jQqwerqwervOqQM
)

WeChat.class.php

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// +----------------------------------------------------------------------
// | 微信公众平台开发
// | 1.发送模板短信
// | 2.获取微信用户信息
// | 3.微信授权登录获取openId和unionId
// | 4...
// +----------------------------------------------------------------------
// | Copyright (c) 2016 http://www.lrfun.com All rights reserved.
// +----------------------------------------------------------------------
// | Author: lrfun <admin@lrfun.com>
// +----------------------------------------------------------------------
// | Date: 2016-10-14
// +----------------------------------------------------------------------
 
Class WeChat{
    protected $appid;
    protected $secret;
    protected $accessToken;
     
    function __construct(){
        $this->appid       = "xxx";
        $this->secret      = "xxx";
        $this->accessToken = $this->getAccessToken();
    }
     
    /***
     * 获取access_token
     * @return
     **/
    private function getAccessToken(){
        $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$this->appid."&secret=".$this->secret;
        $res = json_decode($this->httpRequest($url),true);
        //$access_token = $res['access_token'];
        return $res['access_token'];
    }
     
    /***
     * POST或GET请求
     * @url 请求url
     * @data POST数据
     * @return
     **/
    private function httpRequest($url, $data = ""){
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
        if(!empty($data)){  //判断是否为POST请求
            curl_setopt($curl, CURLOPT_POST, 1);
            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        }
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        $output = curl_exec($curl);
        curl_close($curl);
        return $output;
    }
     
    /***
     * 获取openID或unionId
     * @code 微信授权返回的code
     * @return
     **/
    public function getOpenIdOrUnionId($code){
        $url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$this->appid."&secret=".$this->secret."&code=".$code."&grant_type=authorization_code";
        $data = $this->httpRequest($url);
        return $data;
    }
     
    /***
     * 发送模板短信
     * @data 请求数据
     * @return
     **/
    public function sendTemplateMessage($data = ""){
        $url = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=".$this->accessToken;
        $result = $this->httpRequest($url, $data);
        return $result;
    }
     
    /***
     * 通过openId获取用户信息
     * @openId
     * @return
     **/
    public function getUserInfo($openId){
        $url  = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=".$this->accessToken."&openid=".$openId."&lang=zh_CN";
        $data = $this->httpRequest($url);
        return $data;
    }
}
（转载请注明：转自http://www.lrfun.com）

欢迎转载，原文地址：http://www.lrfun.com/html/technology/PHP/2016/1014/102.html

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