maintain/wxbx/application/index/controller/function.php

<?php

// 获取请求的地址的方法
if(!function_exists("http_curl")){
     function http_curl($url,$data =array(),$method ="get",$returnType ="json")
     {
       //1.开启会话
       $ch = curl_init();
       //2.设置参数
       
       curl_setopt($ch,CURLOPT_RETURNTRANSFER,TRUE);
       curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
       if($method!="get"){
           curl_setopt($ch,CURLOPT_POST,TRUE);
           curl_setopt($ch,CURLOPT_POSTFIELDS,$data);
       }
       curl_setopt($ch,CURLOPT_URL,$url);
      //执行会话
      $json = curl_exec($ch);
      curl_close($ch);
      if($returnType == "json"){
          return json_decode($json,true);
      }
       return $json;
     }
}
if(!function_exists('get_access_token')){
    function get_access_token()
    {
        $appid = "wx6ddfdda51d6a1a19"; //微信的appid
        $secret ="00a7281205f582fb08d2d3bd9552cb03"; //微信的开发者密钥
        // 读取缓存中的内容
        include_once "MyMemcache.php";  //引入缓存方法文件
        $obj = new \MyMemcache();


        $value = $obj ->get($appid);
        if(!$value){

           $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appid."&secret=".$secret;
           $result = http_curl($url);
           $value = $result['access_token'];

           $obj->set($appid,$value,7000);
        }

        return $value;
    }
}