Php / Math / Calculation / Unix-Timestamp / How to calculate the time untill upload is finish

Question

I'm stucked in mathematic problem. I cant figure out how to calculate the time untill upload is finish.

I know following stuff:

• start time of upload
• actual time
• filesize
• how much chunks of the filesize are allready uploaded...

first i thought i would substrackt starttime from actual time to get seconds passt since start

time()-$timestampstart; // seconds?

now i know ho much seconds are passed since upload start...

then i thought i could somehow divide the uploadedchunksize with filesize to kno how often i could get this package into the file size somehow calculate it

my status fiule looks like this:

<?php
$statFilesize = 6399866206;
$statuploaded = 5662310400;
$timestampstart = 1513935180;
?>

and i include this file into my test.php where i am stuck atm

<?php
    include './status2';

    $timestampnow = time()-$timestampstart;
    echo $timestampnow.'<br>';

    $test = $statuploaded / $statFilesize;

    echo $test;
?>

So hope i could explain what i am tring to do :)

Sorry for my bad english

Answer 1

You can do it like this in javascript

var current_speed = uploaded_size/(now - elaped_time);

var remaining size = file_size - uploaded_size;

var remaining time = remaining_size/current_speed;

Run this code inside

setInterval(function(){

},500)

to refresh the stats every 500 milisecond.