Opcache, APC or Session.Upload_Progress for Multiple File Uploads from single File Input

Question

I have few questions regarding Multiple File uploads in PHP. I have this single File Input as

<input type="file" name="file[]" />

1)Question 1: Is it possible to track Upload progress with Opcache? if yes then where can I find a good article? or what can be code for that?

2)Question 2: Is it possible to upload multiple files from single file input element and track upload progress of each individual file seperately with Session.Upload_Progress? if yes then what can be code for that? Any good article?

3)Question 3: If Opcache and Session.Upload_progress both cannot be used for tracking multiple files from single file input element and track upload progress of each individual file seperately then should I use APC with PHP 5.5.3 or greater?

I read a long list of other articles but none of them described what I am upto. Currently I am working with this IBM article and following its code. I followed the same code from here

I can make some code with APC to perform multiple file uploads from single input element but again the question no 3 comes in.

So, basically how can I make a code to upload multiple files with single file input element and track upload progress of each file individually? It doesn't matter what to use it can be done either with Opcache or APC or Session.Upload_Progress.

Answer 1

if using html5 isn't a problem for you:

http://www.html5rocks.com/en/tutorials/file/dndfiles/#toc-reading-files - reading multiple files from 1 input

http://www.matlus.com/html5-file-upload-with-progress/ - upload progress bar

Answer 2

I wouldn't recommend using APC session upload progress, because it tracks a single file at a time. See: http://php.net/manual/en/apc.configuration.php#ini.apc.rfc1867

If you are using PHP 5.4.0 and above, check out this: http://www.php.net/manual/en/session.upload-progress.php

If you prefer an easier way, I would recommend this: http://www.plupload.com/. It works very well.

Hope it helps.