Using scandir() to find folders in a directory (PHP)

Question

I am using this peice of code:

$target = \'extracted/\' . $name[0];  
$scan = scandir($target);

To scan the directory of a folder which is

Answer 1

$directories = scandir('images');
foreach($directories as $directory){
    if($directory=='.' or $directory=='..' ){
        echo 'dot';
    }else{
            if(is_dir($directory)){
                  echo $directory .'
';
            }
    }
} 

a simpler and perhaps faster version