Re: PHP/SWFUpload progress
| From: | Manuel Lemos | Date: | Sat, 26 Dec 2009 02:48:38 +0000 |
| Subject: | Re: PHP/SWFUpload progress | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-300696@lists.php.net to get a copy of this message | ||
Hello,
on 12/24/2009 09:33 AM German Geek said the following:
> Hi all,
>
> Wishing you a merry xmas! As a gift to you a little thing that I figured out
> through long googling and trial and error:
>
> We are using the swfupload (flash) upload tool to upload files to a php
> script. For a rather cryptic reason on some clients the progress would show
> too quickly when AVG Link scanning was activated on a windows machine. The
> upload would have completed, but it was actually still uploading. Sound
> weird? Yes that's what we thought.
Very likely your modem is buffering the uploaded data.
> We ended up solving it by installing SSL (https) on that machine which
> solved the problem because the anti virus cannot "see" the upload requests
> and tamper with it.
>
> I know this is not strictly PHP related, but since this list was always
> helpful for me i thought i would share this for xmas.
>
> There is a question that came up though:
> When uploading to a php page i could find a temporary file that was growing
> on the server. Couldn't one monitor the growth of that file and therefore
> track the progress with AJAX poll requests? I know this is more overhead but
> this seems more reliable to me when there is something funny going on on the
> client machine, like with the above anti virus. I couldn't figure out how to
> determine which temp file it was though, because the request would be still
> going while the file is uploaded and you cannot read the $_FILES variable or
> similar.
That is exactly what I do with the PHP upload progress extension and a
special plug-in for the Forms Generation and Validition class. There is
no need for Flash.
http://www.phpclasses.org/formsgeneration
Here is a live example:
http://www.meta-language.net/forms-examples.html?example=test_upload_progress
This article explains it in more detail:
http://www.phpclasses.org/blog/post/61-File-upload-progress-meter-for-PHP-4-at-last.html
--
Regards,
Manuel Lemos
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