Directory name lowercase to uppercase

<?php
/**
* Handler: Rename second tier first level directory named uppercase
* @package General 2015/9/9
* @copyright copyright 2014-2015 Power by Li-さま
*/
$DST 2 = "a/*";//Current folder
foreach (Glob ($dst 2) as $DST _filename)
{
Echo basename ($dst _filename);
if (Is_dir ($DST _filename))//[first-level folder
{
foreach (Glob ($dst _filename. /* ') as $DST _filenama)
{
if (Is_dir ($DST _filenama))
{
Rename ($dst _filenama, dirname ($dst _filenama). ' /'. Strtoupper (basename ($DST _filenama));
echo "<font color= ' Red ' >rename 2". $dst _filenama. " ---". DirName ($dst _filenama). ' /'. Strtoupper (basename ($DST _filenama)). " Ok</font><br/> ";

}
}
Rename ($dst _filename,dirname ($dst _filename). ' /'. Strtoupper (basename ($DST _filename));
echo "<font color= ' Red ' >rename 1". $dst _filename. " Ok</font><br/> ";
echo "}
}
/**************************************************************/
?>

Directory name lowercase to uppercase