dongpo0409 2015-07-31 14:25
浏览 99

Content-Length标头使浏览器在显示下载弹出窗口之前加载整个文件

I am downloading large files, and have code like this:

header('Content-Type: audio/mpeg');
header('Content-Length: ' . filesize($path));
header('Content-Disposition: attachment; filename="test.mp3"');
echo file_get_contents($path);

When I click on a link to this action I have to wait a very long time (seems like browser is loading the whole file in background) before the download popup shows. Then when I click to save, it is downloaded instantly. When I comment out the line with Content-Length, the download popup shows immediately, but of course file size and percentage is not shown. Do you have any ideas?

  • 写回答

0条回答 默认 最新

    报告相同问题?

    悬赏问题

    • ¥15 使用C#,asp.net读取Excel文件并保存到Oracle数据库
    • ¥15 C# datagridview 单元格显示进度及值
    • ¥15 thinkphp6配合social login单点登录问题
    • ¥15 HFSS 中的 H 场图与 MATLAB 中绘制的 B1 场 部分对应不上
    • ¥15 如何在scanpy上做差异基因和通路富集?
    • ¥20 关于#硬件工程#的问题,请各位专家解答!
    • ¥15 关于#matlab#的问题:期望的系统闭环传递函数为G(s)=wn^2/s^2+2¢wn+wn^2阻尼系数¢=0.707,使系统具有较小的超调量
    • ¥15 FLUENT如何实现在堆积颗粒的上表面加载高斯热源
    • ¥30 截图中的mathematics程序转换成matlab
    • ¥15 动力学代码报错,维度不匹配