Listing all the folders subfolders and files in a directory using php

List of all files under directory and also its subdirectories recursively.

function listFolderFiles($dir){
    $ffs = scandir($dir);
    echo '<ol>';
    foreach($ffs as $ff){
        if($ff != '.' && $ff != '..'){
            echo '<li>'.$ff;
            if(is_dir($dir.'/'.$ff)) listFolderFiles($dir.'/'.$ff);
            echo '</li>';
        }
    }
    echo '</ol>';
}

listFolderFiles(dirname(__FILE__)'/Main Dir');

dirname(__FILE__) gives you the file name where you are.