PHP function usage example code to obtain folder size

This article mainly introduces the usage of PHP to obtain the folder sizefunction. The example analyzes the related skills of PHP for folder operations. Friends in need can refer to the following

The examples of this article are described Learn how to get the folder size function in PHP. Share it with everyone for your reference. The details are as follows:

<?php
 // 获取文件夹大小
 function getDirSize($dir)
 { 
  $handle = opendir($dir);
  while (false!==($FolderOrFile = readdir($handle)))
  { 
   if($FolderOrFile != "." && $FolderOrFile != "..") 
   { 
    if(is_dir("$dir/$FolderOrFile"))
    { 
     $sizeResult += getDirSize("$dir/$FolderOrFile"); 
    }
    else
    { 
     $sizeResult += filesize("$dir/$FolderOrFile"); 
    }
   } 
  }
  closedir($handle);
  return $sizeResult;
 }
 // 单位自动转换函数
 function getRealSize($size)
 { 
  $kb = 1024;   // Kilobyte
  $mb = 1024 * $kb; // Megabyte
  $gb = 1024 * $mb; // Gigabyte
  $tb = 1024 * $gb; // Terabyte
  if($size < $kb)
  { 
   return $size." B";
  }
  else if($size < $mb)
  { 
   return round($size/$kb,2)." KB";
  }
  else if($size < $gb)
  { 
   return round($size/$mb,2)." MB";
  }
  else if($size < $tb)
  { 
   return round($size/$gb,2)." GB";
  }
  else
  { 
   return round($size/$tb,2)." TB";
  }
 }
 echo getRealSize(getDirSize(&#39;需要获取大小的目录&#39;));
?>

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