获取微信授权demo

清疚 2022-05-14 00:04 192阅读 0赞

<?php
    /**
     * Created by PhpStorm.
     * User: liubao 微信：meizu_mx4
     * Date: 2018/8/30
     * Time: 13:59
     * 获取微信授权链接，获取授权token，获取授权后的微信用户信息  */
    
    
    class Wechat
    {
        private $app_id = ''; //公众号appid
    
        private $app_secret = ''; //公众号app_secret
    
        private $redirect_uri = ''; //授权之后跳转地址
    
        /**
         * 获取微信授权链接
         * @param string $redirect_uri 跳转地址
         * @param mixed $state 参数
         **/
        public function get_authorize_url($state)
        {
            $redirect_uri = urlencode($this->redirect_uri);
            return "https://open.weixin.qq.com/connect/oauth2/authorize?appid={$this->app_id}&redirect_uri={$redirect_uri}&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect";
        }
    
        /**
         * 获取授权token
         * @param string $code 通过get_authorize_url获取到的code
         * */
        public function get_access_token($code)
        {
            $token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid={$this->app_id}&secret={$this->app_secret}&code={$code}&grant_type=authorization_code";
            $token_data = $this->curl_get($token_url);
            return json_decode($token_data, TRUE);//里面包含access_token和openid,拿到这两个值就可以访问下面的方法获取微信用户信息了
        }
    
        /**
         * 获取授权后的微信用户信息
         * @param string $access_token
         * @param string $open_id
         */
        public function get_user_info($access_token, $open_id)
        {
            if ($access_token && $open_id) {
                $info_url = "https://api.weixin.qq.com/sns/userinfo?access_token={$access_token}&openid={$open_id}&lang=zh_CN";
                $info_data = $this->curl_get($info_url);
                return json_decode($info_data, TRUE);
            }
            return FALSE;
        }
    
    
        //curl get方式
        public function curl_get($url)
        {
            $curl = curl_init();
            curl_setopt($curl, CURLOPT_URL, $url);
            curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
            $data = curl_exec($curl);
            curl_close($curl);
            return $data;
        }
     
        //curl post方式
        public function curl_post($url, $param)
        {
            $param = json_encode($param,true);
            $ch = curl_init($url);
            curl_setopt($ch, CURLOPT_HEADER, 0);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_POST, 1);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $param);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
            $data = curl_exec($ch);
            return $data;
        }
    }