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(){
        if(Cache::has($this->appID)){
            $accessToken = Cache::get($this->appID);
        }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'];
            $expiresIn = ($result['expires_in']-60)/60;

            Cache::add($this->appID,$accessToken,$expiresIn);
        }

        return [true,$accessToken];
    }

    //发送普通消息
    public function sendToWx($accessToken,$code){
        // 发送消息
        $sendURL = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=$accessToken";

        $userOpenID = 'oBmsr5W_l_8nqQQfIMNP5sBzg8ME';
        // 准备普通文本消息的数据
        $messageData = array(
            'touser' => $userOpenID,
            'msgtype' => 'text',
            'text' => array(
                'content' => '您的验证码是: '.$code, // 替换为您要发送的验证码
            ),
        );

        $sendData = json_encode($messageData);
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $sendURL);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $sendData);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        $response = curl_exec($ch);

        // 处理发送结果
        $result = json_decode($response, true);

        if ($response === false) {
            $error = curl_error($ch);
            curl_close($ch);
            return [false,$error];
        } else {
            curl_close($ch);
            if ($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']] ;
            }
        }
    }
}