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Calculate Full Size of Directory in PHP

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This code allows to calculate the full size of a directory using PHP.

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  1. <?php
  2. /**
  3.  * Calculate the full size of a directory
  4.  * @param string $DirectoryPath Directory path
  5.  */
  6. function CalcDirectorySize($DirectoryPath) {
  7.     // I reccomend using a normalize_path function here
  8.     // to make sure $DirectoryPath contains an ending slash
  9.     // To display a good looking size you can use a readable_filesize
  10.     // function.
  11.     $Size = 0;
  12.     $Dir = opendir($DirectoryPath);
  13.     if (!$Dir) return -1;
  14.     while (($File = readdir($Dir)) !== false) {
  15.         // Skip file pointers
  16.         if ($File[0] == ) continue;
  17.         // Go recursive down, or add the file size
  18.         if (is_dir($DirectoryPath . $File)) {
  19.             $Size += CalcDirectorySize($DirectoryPath . $File . DIRECTORY_SEPARATOR);
  20.         }
  21.         else {
  22.             $Size += filesize($DirectoryPath . $File);
  23.         }
  24.     }
  25.     closedir($Dir);
  26.     return $Size;
  27. }
  28. ?>

URL: www.apphp.com/index.php?snippet=php-calculate-directory-size

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