PHP/File Directory/disk total space

disk_total_space.php

   <source lang="html4strict">

<?php

  $systempartitions = array("/", "/home","/usr", "/www");
  foreach ($systempartitions as $partition) {
     $totalSpace = disk_total_space($partition) / 1048576;
     $usedSpace = $totalSpace - disk_free_space($partition) / 1048576;
     echo "Partition: $partition (Allocated: $totalSpace MB. Used: $usedSpace MB.)"; 
  }

?>

 </source>