PHP统计目录中文件数量以及目录中目录大小的方法
PHP统计目录中文件以及目录中目录大小的方法,涉及PHP针对文件及目录的遍历,读取及运算的相关技巧
本文实例讲述了PHP统计目录中文件以及目录中目录大小的方法。
分享给大家供大家参考,具体如下:
<?php //循环遍历目录中所有的文件,并统计目录和文件的大小 $dirName="phpMyAdmin"; $dir=opendir($dirName); //返回一个资源类型 while($fileName=readdir($dir)){ $file=$dirName."/".$fileName; if($fileName!="." && $fileName!=".."){ if(is_dir($file)){ echo "<font color='red'>".$fileName."===".date("Y-m-d H:i:s",filectime($file))."==".filetype($file)."==".toSize(dirSize($file))."<br>"; } else{ echo "<font color="green">".$fileName."=====".date("Y-m-d H:i:s",filectime($file))."====".filetype($file)."====".toSize(filesize($file))."</font><br>"; } } } closedir($dir); //把文件或目录的大小转化为容易读的方式 function toSize($size){ $dw; //指定文件或目录统计的单位方式 if($size>pow(2,30)){ $dw="GB"; $size=round($size/pow(2,30),2); } else if($size>pow(2,20)){ $dw="MB"; $size=round($size/pow(2,20),2); } else if($size>pow(2,10)){ $dw="KB"; $size=round($size/pow(2,10),2); } else { $dw="bytes"; } return $size.$dw; } //利用递归的方式统计目录的大小 function dirSize($dirName){ $dirsize=0; $dir=opendir($dirName); while($fileName=readdir($dir)){ $file=$dirName."/".$fileName; if($fileName!="." && $fileName!=".."){ //一定要进行判断,否则会出现错误的 if(is_dir($file)){ $dirsize+=dirSize($file); } else{ $dirsize+=filesize($file); } } } closedir($dir); return $dirsize; } ?>
希望本文所述对大家学习PHP有所帮助。

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