php微信开发大神看看有没有语法错误，能不能自动获取到最新access_token

class Wechat_base_api{
        
        private $appid='wx5d4b7d2e8bfd5793';
        private $appsecret='4379ef7213c36eae5dc2ab91f9f6aced';
        //构造函数
        public function __construct($appid,$appsecret)
        {
            $this->appid = $appid;
            $this->appsecret = $appsecret;
        }
        
    //获取access_token（支持自动更新凭证）
        public function get_access_token()
        {
            $this->last_time = 1408851194;
            $access_token = "jIGpovtFGZDXCB_K2vqDPTA05zP7VWZaKIHXC_qZDqEiSGONWfCzQ45fI9aksl2L188yhtPpNB61iOBS4TTtgw";

            if(time() > ($this->last_time + 7200))
            {
                //GET请求的地址
                $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$this->appid}&secret={$this->appsecret}";
                 $access_token_Arr =  $this->https_request($url);
                 $this->last_time = time();
                 return $access_token_Arr['access_token'];            
            }

            return $access_token;
        }

//https请求（支持GET和POST）
        protected function https_request($url,$data = null)
        {
            $ch = curl_init();
            curl_setopt($ch,CURLOPT_URL,$url);
            curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
            if(!empty($data))
            {
                curl_setopt($ch,CURLOPT_POST,1);//模拟POST
                curl_setopt($ch,CURLOPT_POSTFIELDS,$data);//POST内容
            }
            $outopt = curl_exec($ch);
            curl_close($ch);
            $outopt = json_decode($outopt,true);
            return $outopt;
        }
}

php

阅读 5.3k

4 个回答

得票最新

xxxwww

3092313

发布于
2015-12-09

问题大的很

过期时间写死，会导致不停请求微信接口，可能会达到接口请求上限
access_token也是写死，当达到接口请求上限后，返回都是过期错误的access_token
说到底，access_token没有缓存起来。

下面这个是根据微信提供的示例代码更改改过的：

<?php
/**
 * Created by PhpStorm.
 * User: T.H
 * Date: 12/9/2015
 * Time: 9:59 AM
 */

class WxApi
{

    /**
     * 填你的AppId
     * @var string
     */
    private $appId = '';

    /**
     * 填你的Secret
     * @var string
     */
    private $appSecret = '';

    /**
     * 填你的 access_token 缓存文件存存放的位置
     * @var string
     */
    private $file_path = '/var/wx/AccessToken.json';

    /**
     * WxAccessToken constructor.
     * @param string $appId
     * @param string $appSecret
     * @param string $file_path
     */
    public function __construct($appId = '', $appSecret = '', $file_path = '') {

        //初始化
        $this->appId = $appId ? $appId : $this->appId;
        $this->appSecret = $appSecret ? $appSecret : $this->appSecret;
        $this->file_path = $file_path ? $file_path : $this->file_path;
    }

    /**
     * 获取微信AccessToken
     * @return mixed
     */
    private function getAccessToken() {

        $data = json_decode(file_get_contents($this->file_path));

        if ($data->expire_time < time()) { //判断本地存储的access_token是否过期

            // 如果是企业号用以下URL获取access_token
            // $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret";

            // 其它类型公众号使用这个URL获取access_token
            $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";

            //访问微信接口，拉取access_token等信息
            $res = json_decode($this->httpGet($url));

            //提取出access_token
            $access_token = $res->access_token;

            //判断access_token是否存在，存在保存到本地文件中
            if ($access_token) {

                $data->expire_time = time() + 7190;
                $data->access_token = $access_token;

                $fp = fopen($this->file_path, "w");
                fwrite($fp, json_encode($data));
                fclose($fp);
            }
        } else { //本地存储的access_token没有过期
            $access_token = $data->access_token;
        }

        //返回
        return $access_token;
    }

    /**
     * 拉取数据
     * @param $url
     * @return mixed|string
     */
    private function httpGet($url) {

        //本地请求,则跳过请求
        if('127.0.0.1' == $_SERVER['SERVER_ADDR']){
            return '';
        }

        $curl = curl_init();
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($curl, CURLOPT_TIMEOUT, 500);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($curl, CURLOPT_URL, $url);

        $res = curl_exec($curl);
        curl_close($curl);

        return $res;
    }
}