Online PHP editor | output for s9AXo

@ 2021-04-06T07:14:57Z

<?php

function file_format_size($bytes, $decimals = 2) {
  $unit_list = array('B', 'KB', 'MB', 'GB', 'PB');

  if ($bytes == 0) {
    return $bytes . ' ' . $unit_list[0];
  }

  $unit_count = count($unit_list);
  for ($i = $unit_count - 1; $i >= 0; $i--) {
    $power = $i * 10;
    if (($bytes >> $power) >= 1)
      return round($bytes / (1 << $power), $decimals) . ' ' . $unit_list[$i];
  }
}

foreach ([0, 10, 100, 1000, 1024, 10000, 100000, 1000000, 10000000] as $bytes) {
    var_export(file_format_size($bytes));
    echo "\n";
}

Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.4, 8.3.6 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3: '0 B' '10 B' '100 B' '1000 B' '1 KB' '9.77 KB' '97.66 KB' '976.56 KB' '9.54 MB'
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 '0 B' '10 B' '100 B' '1000 B' '1 KB' '9.77 KB' '97.66 KB' '976.56 KB' '9.54 MB'

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