Question

I need to round up sizes of file uploaded and determine what size format whether it’s kb,mb or gb.

Detail:
While users upload picture, picture attributes are fetched via the global $_FILES. If for example, a user upload a picture of 29.6kb, and I decide to check the size of the picture uploaded, the $_FILES[size] array echo the size as 30358.

And what I’m trying to do with the value gotten from the $_FILES[size] is to round up the picture size from 30758 to 31 and then concatenate the file size format (kb, mb or gb) to it and echo it as 31kb.

I really hope to get help with this…Thanks!

Answer 1

Laravel uses this helper function:

function get_file_size($size)
{
  $units = array('Bytes', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB');
  return @round($size / pow(1024, ($i = floor(log($size, 1024)))), 2).' '.$units[$i];
}

*Source: https://github.com/laravel/laravel/blob/master/laravel/helpers.php

I haven’t seen a more elegant way for doing this yet.