[PHP] 计算文件夹大小 -- Determining the Size of a Directory’s Contents

The code as below :

 

代码

<?php
function directory_size($directory) {
$directorySize=0;
/* Open the directory and read its contents. */
if ($dh = @opendir($directory)) {
/* Iterate through each directory entry. */
while (($filename = readdir ($dh))) {
/* Filter out some of the unwanted directory entries. */
if ($filename != "." && $filename != "..")
             {
// File, so determine size and add to total.
                if (is_file($directory."/".$filename))
$directorySize += filesize($directory."/".$filename);
// New directory, so initiate recursion. */
                   if (is_dir($directory."/".$filename))
$directorySize += directory_size($directory."/".$filename);
             }
         } #endWHILE
      } #endIF
      @closedir($dh);
return $directorySize;
   } #end directory_size()
?>