后台代码

	//注意公众号的openid和小程序的 openid不是同一个
    $this->sendmuban($openid);


    public function sendmuban($openid){
        // 公众号的
        $appId = '**************';
        $appSecret = '***************';
        
        // 获取 Access Token
        $ch = curl_init("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$appId}&secret={$appSecret}");
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $response = curl_exec($ch);
        curl_close($ch);
        
        // 处理响应
        $result = json_decode($response, true);
        if ($result && isset($result['access_token'])) {
            $accessToken = $result['access_token'];
            
            // echo "Access Token 获取成功：{$accessToken}";
        } else {
            echo "Access Token 获取失败：" . json_encode($result);
        }

        
         
        // $openid = '***************';  // 用户的 OpenID
        $templateId = '***************************';  // 模板消息 ID
        
        // 构造模板消息数据
        $templateData = [
            'touser' => $openid,
            'template_id' => $templateId,
            'data' => [
                'thing1' => [
                    'value' => '*****', // 姓名，对应模板消息中的 {{thing1.DATA}}
                ],
                'time4' => [
                    'value' => '2023-01-01', // 时间，对应模板消息中的 {{time4.DATA}}
                ],
                'thing5' => [
                    'value' => '点击查看详情', // 跳转文案，对应模板消息中的 {{thing5.DATA}}
                ],
            ],
        ];
        
        // 发送模板消息
        $ch = curl_init("https://api.weixin.qq.com/cgi-bin/message/template/send?access_token={$accessToken}");
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($templateData, JSON_UNESCAPED_UNICODE));
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
        $response = curl_exec($ch);
        curl_close($ch);
        
        // 处理响应
        $result = json_decode($response, true);
        if ($result && $result['errcode'] === 0) {
            echo "模板消息发送成功";
        } else {
            echo "模板消息发送失败：" . json_encode($result, JSON_UNESCAPED_UNICODE);
        }
        
        
    }
	

注意要跟模板消息的规则对应