duanju_crontab_script/app/Service/Miniprogram/Wechat/AccessTokenService.php

<?php

namespace App\Service\Miniprogram\Wechat;

use GuzzleHttp\Client;

class AccessTokenService
{
    public static function getAccessToken($appid, $secret) {
        $client = new Client(['timeout' => 3]);
        $httpResult = $client->get('https://api.weixin.qq.com/cgi-bin/token', [
            'query' => ['grant_type' => 'client_credential', 'appid' => $appid, 'secret' => $secret]
        ]);

        if(200 != $httpResult->getStatusCode()) {
            throw new \RuntimeException('请求微信上游失败', '500001');
        }
        $parsedContent = \json_decode($httpResult->getBody()->getContents(), true);
        if(0 != ($parsedContent['errcode'] ?? 0)) {
            throw new \RuntimeException('请求微信上游失败:'. ($parsedContent['errmsg'] ?? ''), '500002');
        }
        return $parsedContent;
    }

    public static function getAccessTokenRedisKey($appid) {
        return 'dj.miniWechat.at.' . $appid;
    }
}