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How to obtain basic information of WeChat users in php (code)

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2019-01-23 10:23:556902browse

The content of this article is about how to obtain the basic information (code) of WeChat users in PHP. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you. 

<?php
error_reporting(1);
header(&#39;Content-type:text/html; Charset=utf-8&#39;);
/* 配置开始 */
$appid = &#39;&#39;;  //微信公众平台->开发->基本配置->AppID
$appKey = '';   //微信公众平台->开发->基本配置->AppSecret
/* 配置结束 */

//①、获取用户openid
$wxPay = new WxService($appid,$appKey);
$data = $wxPay->GetOpenid();      //获取openid
if(!$data['openid']) exit('获取openid失败');
//②、获取用户信息
$user = $wxPay->getUserInfo($data['openid'],$data['access_token']);
?>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="renderer" content="webkit" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge,Chrome=1" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
    <title>微信获取用户信息demo</title>
    <link href="https://cdn.bootcss.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/jquery/2.1.0/jquery.min.js"></script>
</head>
<body>
<div>
    <div>
        <h1>你的基本信息如下：</h1>
        <table class="table table-bordered">
            <tr>
                <td>openid</td>
                <td><?=$user[&#39;openid&#39;]?></td>
            </tr>
            <tr>
                <td>unionid</td>
                <td><?=$user[&#39;unionid&#39;]?></td>
            </tr>
            <tr>
                <td>昵称</td>
                <td><?=$user[&#39;nickname&#39;]?></td>
            </tr>
            <tr>
                <td>头像</td>
                <td><img src="<?=$user[&#39;headimgurl&#39;]?>" style="width: 100px;" alt=""></td>
            </tr>               
            <tr>
                <td>性别</td>
                <td><?php
                    switch (strtoupper($user[&#39;sex&#39;])){
                        case 1:
                            echo &#39;男性&#39;;
                            break;
                        case 2:
                            echo &#39;女性&#39;;
                            break;
                        default:
                            echo &#39;未知&#39;;
                            break;
                    }
                    ?></td>
            </tr>
            <tr>
                <td>省份 / 城市</td>
                <td><?=$user[&#39;province&#39;].&#39; / &#39;.$user[&#39;city&#39;]?></td>
            </tr>
            <tr>
                <td>language</td>
                <td><?=$user[&#39;language&#39;]?></td>
            </tr>
        </table>
    </div>
</div>
</body>
</html>
<?php
class WxService
{
    protected $appid;
    protected $appKey;

    public $data = null;

    public function __construct($appid, $appKey)
    {
        $this->appid = $appid; //微信支付申请对应的公众号的APPID
        $this->appKey = $appKey; //微信支付申请对应的公众号的APP Key
    }

    /**
     * 通过跳转获取用户的openid，跳转流程如下：
     * 1、设置自己需要调回的url及其其他参数，跳转到微信服务器https://open.weixin.qq.com/connect/oauth2/authorize
     * 2、微信服务处理完成之后会跳转回用户redirect_uri地址，此时会带上一些参数，如：code
     *
     * @return 用户的openid
     */
    public function GetOpenid()
    {
        //通过code获得openid
        if (!isset($_GET['code'])){
            //触发微信返回code码
            $baseUrl = $this->getCurrentUrl();
            $url = $this->__CreateOauthUrlForCode($baseUrl);
            Header("Location: $url");
            exit();
        } else {
            //获取code码，以获取openid
            $code = $_GET['code'];
            $openid = $this->getOpenidFromMp($code);
            return $openid;
        }
    }

    public function getCurrentUrl()
    {
        $scheme = $_SERVER['HTTPS']=='on' ? 'https://' : 'http://';
        $uri = $_SERVER['PHP_SELF'].$_SERVER['QUERY_STRING'];
        if($_SERVER['REQUEST_URI']) $uri = $_SERVER['REQUEST_URI'];
        $baseUrl = urlencode($scheme.$_SERVER['HTTP_HOST'].$uri);
        return $baseUrl;
    }

    /**
     * 通过code从工作平台获取openid机器access_token
     * @param string $code 微信跳转回来带上的code
     * @return openid
     */
    public function GetOpenidFromMp($code)
    {
        $url = $this->__CreateOauthUrlForOpenid($code);        
        $res = self::curlGet($url);
        $data = json_decode($res,true);
        $this->data = $data;
        return $data;
    }

    /**
     * 构造获取open和access_toke的url地址
     * @param string $code，微信跳转带回的code
     * @return 请求的url
     */
    private function __CreateOauthUrlForOpenid($code)
    {
        $urlObj["appid"] = $this->appid;
        $urlObj["secret"] = $this->appKey;
        $urlObj["code"] = $code;
        $urlObj["grant_type"] = "authorization_code";
        $bizString = $this->ToUrlParams($urlObj);
        return "https://api.weixin.qq.com/sns/oauth2/access_token?".$bizString;
    }

    /**
     * 构造获取code的url连接
     * @param string $redirectUrl 微信服务器回跳的url，需要url编码
     * @return 返回构造好的url
     */
    private function __CreateOauthUrlForCode($redirectUrl)
    {
        $urlObj["appid"] = $this->appid;
        $urlObj["redirect_uri"] = "$redirectUrl";
        $urlObj["response_type"] = "code";
        $urlObj["scope"] = "snsapi_userinfo";
        $urlObj["state"] = "STATE";
        $bizString = $this->ToUrlParams($urlObj);
        return "https://open.weixin.qq.com/connect/oauth2/authorize?".$bizString;
    }

    /**
     * 拼接签名字符串
     * @param array $urlObj
     * @return 返回已经拼接好的字符串
     */
    private function ToUrlParams($urlObj)
    {
        $buff = "";
        foreach ($urlObj as $k => $v)
        {
            if($k != "sign") $buff .= $k . "=" . $v . "&";
        }
        $buff = trim($buff, "&");
        return $buff;
    }

    /**
     * 获取用户信息
     * @param string $openid 调用【网页授权获取用户信息】接口获取到用户在该公众号下的Openid
     * @return string
     */
    public function getUserInfo($openid,$access_token)
    {

        $response = self::curlGet('https://api.weixin.qq.com/sns/userinfo?access_token='.$access_token.'&openid='.$openid.'&lang=zh_CN');
        return json_decode($response,true);
        
    }

    public static function curlGet($url = '', $options = array())
    {
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30);
        if (!empty($options)) {
            curl_setopt_array($ch, $options);
        }
        //https请求 不验证证书和host
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        $data = curl_exec($ch);
        curl_close($ch);
        return $data;
    }

    public static function curlPost($url = '', $postData = '', $options = array())
    {
        if (is_array($postData)) {
            $postData = http_build_query($postData);
        }
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置cURL允许执行的最长秒数
        if (!empty($options)) {
            curl_setopt_array($ch, $options);
        }
        //https请求 不验证证书和host
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        $data = curl_exec($ch);
        curl_close($ch);
        return $data;
    }

}


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