How to know whether a file has been downloaded successfully on the client side?

[astrojunky]

Hello beautiful people, is it possible to know whethere a file has been downloaded successfully by the user? Does it have something to do with flush()? I guess it's possible with Ajax, but I don't have a clue which are the php functions to be used. Thanking you in advance.

 

astro

[JonnoTheDev]

This is not possible. You can detect a download action but not if the download completes.

[astrojunky]

Thank you for the quick reply Neil.

It isn't possible not even with Ajax? Maybe it's possible to get the download feedback on the client side, i.e by using javascript..

[JonnoTheDev]

It isn't possible not even with Ajax

Ajax makes requests to server side scripts (ajax is javascript, not a language in itself). A server script has nothing to do with the download process. This is done via the users operating system. Aslo javascript will not help as it is parsed by a web browser. I have never heard of websites that perform actions after a download has completed (as it's impossible).

[astrojunky]

hmm, ok. Thank you very much for your info.

[aschk]

Actually i believe it is possible, and it requires 2 things.

1) You detect a call to premature halt of your script

2) You detect byte count of delivered files.

 

I messed around with something along these lines quite a while ago, but don't recall if i ever got it working.