project/app/Service/WxService.php

<?php

namespace App\Service;

use Illuminate\Support\Facades\Cache;

class WxService extends Service
{
    private $appID = 'wx8c710e2210bee651';
    private $appSecret = 'd98ec1fb5b9c9de648f12d1a38db227e';

    public function getToken($cacheKey){
        if(Cache::has($cacheKey)){
            $accessToken = Cache::get($cacheKey);
        }else{
            // 获取访问令牌（Access Token）
            $apiURL = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$this->appID}&secret={$this->appSecret}";
            $response = file_get_contents($apiURL);
            $result = json_decode($response, true);
            if(isset($result['errcode'])){
                return [false,"错误码:{$result['errcode']} 详细信息:{$result['errmsg']}"];
            }
            $accessToken = $result['access_token'];
        }

        return [true,$accessToken];
    }

    public function sendToWx($accessToken,$code){
        // 发送模板消息
        $sendURL = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=$accessToken";

        $userOpenID = '';
        $template_id = '';
        // 准备模板消息的数据
        $templateData = array(
            'touser' => $userOpenID,
            'template_id' => $template_id,
            'data' => array(
                'code' => array(
                    'value' => $code,
                ),
            ),
        );

        $sendData = json_encode($templateData);
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $sendURL);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $sendData);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $response = curl_exec($ch);
        curl_close($ch);

        // 处理发送结果
        $result = json_decode($response, true);
        if ($result['errcode'] == 0) {
            return [true,'验证码已成功发送到微信用户！'];
        } else {
            return [false, '发送验证码时出错：' . $result['errmsg']] ;
        }
    }
}