<?php
	function foo($cotalog, $str = ''){
		$f = scandir($cotalog);
		foreach($f as $k){
			if($k != '.' and $k != '..'){
				if(is_dir("$cotalog\\$k")){
					echo "{$str}[dir] $cotalog\\$k<br>";
					foo("$cotalog\\$k", $str."     ");
				}else{
					echo "{$str}[file] $cotalog\\$k<br>";
				}
			}
		}
	}
    foo(getcwd());
?>

$files = array();
search('c:', $files);
function search($path, &$files)
{
    foreach(scandir($path) as $file)
    {
        if ($file == '.' || $file == '..')
            continue;
        $file = $path . '/' . $file;
        is_dir($file) ? search($file, $files) : $files[] = $file;
    }
}
print_r($files);