Fastadmin

先到插件里面安装 免费的 《二维码生成》

然后就是直接调用了

    /**
     * 获取我的分享二维码
     * 
     * @return void
     */
    public function get_my_share_qr()
    {
        $qr = new \addons\qrcode\controller\Index;
        if(empty($this->auth->qr)){
            $qr_path = $qr->get_qr(json_encode(['uid'=>$this->auth->id]));
            
            Db::name('user')->where('id',$this->auth->id)->update(['qr'=>$qr_path]);
            $this->auth->qr = $qr_path;
        }
        $this->success('qr',$this->auth->qr);
    }

当然

addons\qrcode\controller\Index.php

在里面加入

public function get_qr($content='内容')
    {

       
        $config = get_addon_config('qrcode');
        $params = $this->request->get();
        $params = array_intersect_key($params, array_flip(['text', 'size', 'padding', 'errorlevel', 'foreground', 'background', 'logo', 'logosize', 'logopath', 'label', 'labelfontsize', 'labelalignment']));

        $params['text'] = $this->request->get('text', $content, 'trim');
        $params['label'] = $this->request->get('label', $config['label'], 'trim');
        

        $qrCode = \addons\qrcode\library\Service::qrcode($params);

        $mimetype = $config['format'] == 'png' ? 'image/png' : 'image/svg+xml';

        $response = Response::create()->header("Content-Type", $mimetype);

        // 直接显示二维码
        // header('Content-Type: ' . $qrCode->getContentType());
        // $response->content($qrCode->writeString());

        // 写入到文件
        if ($config['writefile']) {
            $qrcodePath = ROOT_PATH . 'public/uploads/qrcode/user/';
            $file_path = '/uploads/qrcode/user/';
            if (!is_dir($qrcodePath)) {
                @mkdir($qrcodePath);
            }
            if (is_really_writable($qrcodePath)) {
                $name = md5(implode('', $params)) . '.' . $config['format'];
                $filePath = $qrcodePath . $name;
                $qrCode->writeFile($filePath);
            }else{
                $this->error('没有写入权限'.$file_path);
            }
            return  $file_path.$name;
        }

    }