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

weixin_33691700

于 2010-06-24 09:12:00 发布

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文章标签： php

本文介绍了一个用PHP编写的递归函数，该函数可以计算指定目录及其子目录的总大小。通过对目录进行遍历并判断每个条目是文件还是子目录来实现此功能。

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()
?>