用户下载文件后将其删除 [英] deleting a file after user download it

问题描述

我正在使用它向用户发送文件

I am using this for sending file to user

header('Content-type:  application/zip');
header('Content-Length: ' . filesize($file));
header('Content-Disposition: attachment; filename="file.zip"');
readfile($file);

我要在用户下载后删除此文件，我该怎么办?

I want to delete this file after user downloads it, how can i do this?

我的情况是这样的，当用户按下下载按钮时，我的脚本将创建一个临时zip文件，然后用户下载该文件，然后将删除该临时zip文件.

My scenario is like that, when user hits download button, my script will create a temporary zip file and user download it then that temp zip file will be deleted.

最好的最佳方法似乎是运行一个cron作业，该作业每小时将清理一次临时文件.

OK best way seems running a cron job that will be cleaning temp files once an hour.

我用unlink测试了我的脚本，除非用户取消下载，否则它将起作用.如果用户取消下载，则zip文件将保留在服务器上.这样就足够了. :)

I tested my script with unlink, it works unless user cancel the download. If user cancel the download, zip file stays on the server. So that is enough for now. :)

哇！ connection_aborted()骗了我！

ignore_user_abort(true);
if (connection_aborted()) {
    unlink($f);
}

即使用户取消下载，此文件也将删除文件.

This one will delete the file even if user cancel the download.

推荐答案

unlink($filename);

这将删除文件.

它需要与 ignore_user_abort() ^Docs 结合使用，这样即使用户取消了下载，仍会执行unlink.

It needs to be combined with ignore_user_abort()^Docs so that the unlink is still executed even the user canceled the download.

ignore_user_abort(true);

...

unlink($f);

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