计算文件夹的大小，包括子文件夹，格式化输出文件夹大小、文件数、子文件夹数信息。<br>
//代码也可以用于统计目录数<br>
//格式化输出目录大小 单位：Bytes，KB，MB，GB<br>
<br>
function getDirectorySize($path)<br>
{<br>
$totalsize = 0;<br>
$totalcount = 0;<br>
$dircount = 0;<br>
if ($handle = opendir ($path))<br>
{<br>
while (false !== ($file = readdir($handle)))<br>
{<br>
$nextpath = $path . '/' . $file;<br>
if ($file != '.' && $file != '..' && !is_link ($nextpath))<br>
{<br>
if (is_dir ($nextpath))<br>
{<br>
$dircount++;<br>
$result = getDirectorySize($nextpath);<br>
$totalsize += $result['size'];<br>
$totalcount += $result['count'];<br>
$dircount += $result['dircount'];<br>
}<br>
elseif (is_file ($nextpath))<br>
{<br>
$totalsize += filesize ($nextpath);<br>
$totalcount++;<br>
}<br>
}<br>
}<br>
}<br>
closedir ($handle);<br>
$total['size'] = $totalsize;<br>
$total['count'] = $totalcount;<br>
$total['dircount'] = $dircount;<br>
return $total;<br>
}<br>
<br>
function sizeFormat($size)<br>
{<br>
$sizeStr='';<br>
if($size
{<br>
return $size." bytes";<br>
}<br>
else if($size
{<br>
$size=round($size/1024,1);<br>
return $size." KB";<br>
}<br>
else if($size
{<br>
$size=round($size/(1024*1024),1);<br>
return $size." MB";<br>
}<br>
else<br>
{<br>
$size=round($size/(1024*1024*1024),1);<br>
return $size." GB";<br>
}<br>
<br>
}<br>
<br>
$path="/home/www/htdocs";<br>
$ar=getDirectorySize($path);<br>
<br>
echo "<h4>路径 : $path</h4>";<br>
echo "目录大小 : ".sizeFormat($ar['size'])."<br>";<br>
echo "文件数 : ".$ar['count']."<br>";<br>
echo "目录术 : ".$ar['dircount']."<br>";<br>
<br>
//print_r($ar);<br>
?>
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