如何确定文件是否仍然通过ftp传输 [英] How to determine whether a file is still being transferred via ftp

问题描述

我有一个需要使用PHP批处理文件的目录。这些文件通过FTP复制到服务器上。有些文件非常大，需要很长时间进行复制。如何在PHP中确定文件是否仍在传输（所以我可以跳过对该文件的处理并在批处理的下一次运行中处理它）？

一种可能性是获取文件大小，稍等片刻，并验证文件大小是否不同。这是不防水的，因为有一个小小的机会，转移只是暂时停顿了一会儿...

我们的服务器admin建议使用ftpwho，它输出当前正在传输的文件。

http://www.castaglia.org/proftpd/doc/ftpwho.html

所以解决方法是解析输出的ftpwho来查看目录中的文件是否正在传输。

I have a directory with files that need processing in a batch with PHP. The files are copied on the server via FTP. Some of the files are very big and take a long time to copy. How can I determine in PHP if a file is still being transferred (so I can skip the processing on that file and process it in the next run of the batch process)?

A possibility is to get the file size, wait a few moments, and verify if the file size is different. This is not waterproof because there is a slight chance that the transfer was simply stalled for a few moments...

解决方案

Our server admin suggested ftpwho, which outputs which files are currently transferred.

http://www.castaglia.org/proftpd/doc/ftpwho.html

So the solution is to parse the output of ftpwho to see if a file in the directory is being transferred.

这篇关于如何确定文件是否仍然通过ftp传输的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！