How to get directory size in PHP

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function foldersize($path) {
  $total_size = 0;
  $files = scandir($path);

  foreach($files as $t) {
    if (is_dir(rtrim($path, '/') . '/' . $t)) {
      if ($t<>"." && $t<>"..") {
          $size = foldersize(rtrim($path, '/') . '/' . $t);

          $total_size += $size;
      }
    } else {
      $size = filesize(rtrim($path, '/') . '/' . $t);
      $total_size += $size;
    }
  }
  return $total_size;
}

function format_size($size) {
  $mod = 1024;
  $units = explode(' ','B KB MB GB TB PB');
  for ($i = 0; $size > $mod; $i++) {
    $size /= $mod;
  }

  return round($size, 2) . ' ' . $units[$i];
}

$SIZE_LIMIT = 5368709120; // 5 GB

$sql="select * from users order by id";
$result=mysql_query($sql);

while($row=mysql_fetch_array($result)) {
  $disk_used = foldersize("C:/xampp/htdocs/freehosting/".$row['name']);

  $disk_remaining = $SIZE_LIMIT - $disk_used;
  print 'Name: ' . $row['name'] . '<br>';

  print 'diskspace used: ' . format_size($disk_used) . '<br>';
  print 'diskspace left: ' . format_size($disk_remaining) . '<br><hr>';
}

php disk_total_space

Any idea why the processor usage shoot up too high or 100% till the script execution is finish ? Can anything be done to optimize it? or is there any other alternative way to check folder and folders inside it size?

filesystems php
20 Answers

The following are other solutions offered elsewhere:

If on a Windows Host:

<?
    $f = 'f:/www/docs';
    $obj = new COM ( 'scripting.filesystemobject' );
    if ( is_object ( $obj ) )
    {
        $ref = $obj->getfolder ( $f );
        echo 'Directory: ' . $f . ' => Size: ' . $ref->size;
        $obj = null;
    }
    else
    {
        echo 'can not create object';
    }
?>

Else, if on a Linux Host:

<?
    $f = './path/directory';
    $io = popen ( '/usr/bin/du -sk ' . $f, 'r' );
    $size = fgets ( $io, 4096);
    $size = substr ( $size, 0, strpos ( $size, "\t" ) );
    pclose ( $io );
    echo 'Directory: ' . $f . ' => Size: ' . $size;
?>
user_546800

It works perfectly fine .

     public static function folderSize($dir)
     {
        $size = 0;

        foreach (glob(rtrim($dir, '/') . '/*', GLOB_NOSORT) as $each) {
            $func_name = __FUNCTION__;
            $size += is_file($each) ? filesize($each) : static::$func_name($each);
        }

        return $size;
      }
user_75893180

There are several things you could do to optimise the script - but maximum success would make it IO-bound rather than CPU-bound:

  1. Calculate rtrim($path, '/') outside the loop.
  2. make if ($t<>"." && $t<>"..") the outer test - it doesn't need to stat the path
  3. Calculate rtrim($path, '/') . '/' . $t once per loop - inside 2) and taking 1) into account.
  4. Calculate explode(' ','B KB MB GB TB PB'); once rather than each call?
user_39780

Code adjusted to access main directory and all sub folders within it. This would return the full directory size.

function get_dir_size($directory){
    $size = 0;
    $files= glob($directory.'/*');
    foreach($files as $path){
        is_file($path) && $size += filesize($path);

        if (is_dir($path))
        {
            $size += get_dir_size($path);
        }
    }
    return $size;
}
user_73732770

if you are hosted on Linux:

passthru('du -h -s ' . $DIRECTORY_PATH)

It's better than foreach

user_50322180

A one-liner solution. Result in bytes.

$size=array_sum(array_map('filesize', glob("{$dir}/*.*")));

Added bonus: you can simply change the file mask to whatever you like, and count only certain files (eg by extension).

user_21632210
user_91380470
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