如何通过codeigniter导出和下载excel文件，excel文件没有创建（下载）

Question

<div class="row">
    <div class="col-auto mx-auto">
        <nav class="box">
            <ul>
                <li>
                    <a href="#services">Services</a></li>
                <li>
                    <a href="#testimonials-placeholder">Testimonials</a>
                <li>
                    <a href="#contact">Contact</a></li>
            </ul>
        </nav><!-- /box -->
    </div>
</div>

Answer 1

标题（＆＃34;缓存控制：无存储，无缓存，必须重新验证＆＃34;）;

标题（＆＃34; Cache-Control：post-check = 0，pre-check = 0＆＃34;，false）;

标题（＆＃34; Pragma：no-cache＆＃34;）;

标题（＆＃39;内容类型：application / vnd.openxmlformats officedocument.spreadsheetml.sheet＆＃39;）;

标题（＆＃39; Content-Disposition：attachment; filename =＆＃34; subscribers_sheet.csv＆＃34;＆＃39;）;

$ objWriter-＆GT;保存（＆＃34; PHP：//输出＆＃34）;