dr_qrcode函數，需要使用php技術寫一個自定義回調函數

參考文檔：《后臺顯示字段回調》

參考文檔：《二維碼》

config/custom.php

function mytest($value, $param = [], $data = [], $field = []) {
        $html = '<img src="'.dr_qrcode($data['url']).'">';
        return $html; // 輸出二維碼
    }

這個還是很好寫的

回復@小波工作室 能否加個點擊二維碼可以直接下載下來

function mytest($value, $param = [], $data = [], $field = []) {
$img = dr_qrcode($data['url']);
        $html = '<a href="'.dr_down_file(urlencode($img)).'"><img src="'.$img.'"></a>';
        return $html; // 輸出二維碼
    }

回復@小波工作室 出錯了呢

Not Found

The requested URL /uploadfile/http://ewm/index.php?s=api&c=api&m=qrcode&thumb=&text=%2Findex.php%3Fc%3Dshow%26id%3D24&size=5&level=H was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

dr_down_file(($img))