PHP 微信公众号开发 - 获取用户信息

项目微信公众号开发，记录获取用户微信号信息，和用户openid

1，登录微信公众平台

　　点击登录微信公众平台

2，获取公众号开发信息

　　登陆之后在 开发->基本配置

3，设置IP白名单

　　在这里添加服务器ip地址，并点击确认修改

4，微信接口类

 <?php
 // 字符编码
 header("Content-Type:text/html; charset=utf-8");

 // 微信接口类
 class WeChat{
     private static $appid;
     private static $appsecret;

     function __construct(){
         self::$appid = '';      // 开发者ID(AppID)
         self::$appsecret = '';  // 开发者密码(AppSecret)
     }

     // 微信授权地址
     public static function getAuthorizeUrl($url){
         $url_link = urlencode($url);
         return "https://open.weixin.qq.com/connect/oauth2/authorize?appid=" . self::$appid . "&redirect_uri={$url_link}&response_type=code&scope=snsapi_base&state=1#wechat_redirect";
     }

     // 获取TOKEN
     public static function getToken(){
         $urla = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" . self::$appid . "&secret=" . self::$appsecret;
         $outputa = self::curlGet($urla);
         $result = json_decode($outputa, true);
         return $result['access_token'];
     }

     /**
      * getUserInfo 获取用户信息
      * @param  string $code         微信授权code
      * @param  string $weiwei_token Token
      * @return array
      */
     public static function getUserInfo($code, $weiwei_token){
         $access_token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=" . self::$appid . "&secret=" . self::$appsecret . "&code={$code}&grant_type=authorization_code";
         $access_token_json = self::curlGet($access_token_url);
         $access_token_array = json_decode($access_token_json, true);
         $openid = $access_token_array['openid'];
         $new_access_token = $weiwei_token;

         //全局access token获得用户基本信息
         $userinfo_url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token={$new_access_token}&openid={$openid}";
         $userinfo_json = self::curlGet($userinfo_url);
         $userinfo_array = json_decode($userinfo_json, true);
         return $userinfo_array;
     }

     /**
      * addLog 日志记录
      * @param string $log_content 日志内容
      */
     public static function addLog($log_content = ''){
         $data = "";
         $data .= "DATE: [ " . date('Y-m-d H:i:s') . " ]\r\n";
         $data .= "INFO: " . $log_content . "\r\n\r\n";
         file_put_contents('/wechat.log', $data, FILE_APPEND);
     }

     /**
      * 发送get请求
      * @param string $url 链接
      * @return bool|mixed
      */
     private static function curlGet($url){
         $curl = curl_init();
         curl_setopt($curl, CURLOPT_URL, $url);
         curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
         curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
         curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
         $output = curl_exec($curl);
         if(curl_errno($curl)){
             return 'ERROR ' . curl_error($curl);
         }
         curl_close($curl);
         return $output;
     }

     /**
      * 发送post请求
      * @param string $url 链接
      * @param string $data 数据
      * @return bool|mixed
      */
     private static function curlPost($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, 1);
         $output = curl_exec($curl);
         curl_close($curl);
         return $output;
     }
 }

 /**
  * get_page_url 获取完整URL
  * @return url
  */
 function get_page_url($type = 0){
     $pageURL = 'http';
     if($_SERVER["HTTPS"] == 'on'){
         $pageURL .= 's';
     }
     $pageURL .= '://';
     if($type == 0){
         $pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];
     }else{
         $pageURL .= $_SERVER["SERVER_NAME"];
     }
     return $pageURL;
 }

 // 获取用户openid

 // 微信接口类
 $WeChat = new WeChat();
 if(empty($_GET['code']) || !isset($_GET['code'])){
     // 通过授权获取code
     $url = get_page_url();
     $authorize_url = $WeChat->getAuthorizeUrl($url);
     header("Location:{$authorize_url}"); // 重定向浏览器
     exit();
 }else{
     // 获取微信用户信息
     $code = $_GET['code'];
     $weiwei_token = $WeChat->getToken(); // 获取微信token
     $user_info = $WeChat->getUserInfo($code, $weiwei_token);
     print_r($user_info); // 用户微信信息
     print_r($user_info['openid']); // 用户openid
 }