php计算整个目录大小的方法

本文实例讲述了php计算整个目录大小的方法。分享给大家供大家参考。具体实现方法如下：

本文实例讲述了php计算整个目录大小的方法。分享给大家供大家参考。具体实现方法如下：

/**
 * Calculate the full size of a directory
 *
 * @author Jonas John
 * @version 0.2
 * @link http://www.jonasjohn.de/snippets/php/dir-size.htm
 * @param string $DirectoryPath Directory path
 */
function CalcDirectorySize($DirectoryPath) {
 // I reccomend using a normalize_path function here
 // to make sure $DirectoryPath contains an ending slash
 // (-> http://www.jonasjohn.de/snippets/php/normalize-path.htm)
 // To display a good looking size you can use a readable_filesize
 // function.
 // (-> http://www.jonasjohn.de/snippets/php/readable-filesize.htm)
 $Size = 0;
 $Dir = opendir($DirectoryPath);
 if (!$Dir)
 return -1;
 while (($File = readdir($Dir)) !== false) {
 // Skip file pointers
 if ($File[0] == '.') continue; 
 // Go recursive down, or add the file size
 if (is_dir($DirectoryPath . $File)) 
 $Size += CalcDirectorySize($DirectoryPath . $File . DIRECTORY_SEPARATOR);
 else 
 $Size += filesize($DirectoryPath . $File); 
 }
 closedir($Dir);
 return $Size;
}
//使用范例：
$SizeInBytes = CalcDirectorySize('data/');

希望本文所述对大家的php程序设计有所帮助。