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Dir_Size - Recursively get the size of a directory

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Submitted on: 1/1/2015 7:46:00 PM
By: Daniel Green (from psc cd)  
Level: Intermediate
User Rating: By 3 Users
Compatibility: PHP 4.0
Views: 1772
 
     Uses recursion to scan a directory and all subdirectories to get the total size of all files residing within.
 
code:
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//**************************************
// Name: Dir_Size - Recursively get the size of a directory
// Description:Uses recursion to scan a directory and all subdirectories to get the total size of all files residing within.
// By: Daniel Green (from psc cd)
//
// Inputs:The only parameter is the root directory.
//
// Returns:Returns the total size of the directory and all contents.
//
// Assumes:Make sure you set $g_dirsize = 0; before calling the function a second time.
//**************************************

$g_dirsize = 0;
function dir_size($dir)
{
	global $g_dirsize;
	$handle = opendir($dir);
	while($file = readdir($handle))
	{
		if($file != "." && $file != "..")
		{
			if(is_dir($dir . "/" . $file))
			{
				dir_size($dir . "/" . $file);
			}else{
				$g_dirsize += filesize($dir . "/" . $file);
			}
		}
	}
	return($g_dirsize);
}


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