1：config 文件下新建一个文件wechat.php，将个人id和秘钥写入配置文件

 

 

 网址：  https://developers.weixin.qq.com/doc/offiaccount/Basic_Information/Get_access_token.html

<?php
return [
//

接口调用请求说明

https请求方式: 

'access_token_url' => 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s',

'appid' => 'wx2d4d05519f4b82d4',

'appsecret' => '48eedda6630c3776474c719cf1d672ac'
];

2：封装：新建一个目录services 下建一个WechatService.php

 

 

<?php

namespace app\services;

use think\Log;

class WechatService
{

    protected static $_token_key = 'wxdev:wechat:token';
/*
 * 微信公众号获取access_token
 * */
    public static function getToken()
    {
        $accessToken = cache(self::$_token_key);
        if (!$accessToken) {
            $accessTokenUrl = sprintf(config('wechat.access_token_url'), config('wechat.appid'), config('wechat.appsecret'));
            $accessTokenArr = json_decode(file_get_contents($accessTokenUrl),true);
            if (isset($accessTokenArr['errcode'])) {
//                记录日记
                Log::info($accessTokenArr['errmsg']);
                return false;
            } else {
                $accessToken = $accessTokenArr['access_token'];
                cache(self::$_token_key, $accessToken, $accessTokenArr['expires_in'] - 200);
            }
        }
        return $accessToken;
    }

}

3：本地域名测试，获取access_token，需要access_token 调用即可

    /*
     * 获取access_token
     * */
    public function getToken(){
        $accessToken=WechatService::getToken();
        echo  $accessToken;
    }