Simple script to generate an ASCII graphic tree of given directory

directoryListing.php

<?php

$directory = './misc';

try {

    $iterator = new RecursiveTreeIterator(
                    new RecursiveDirectoryIterator(
                        $directory, RecursiveDirectoryIterator::SKIP_DOTS
                    ),

                    RecursiveIteratorIterator::SELF_FIRST
                );

    print '<pre>';

    foreach( $iterator as $path ) echo str_replace( $directory, '', $path ), "\n";

} catch( UnexpectedValueException $e ) {

    printf( 'Directory <strong>%s,</strong> cannot be traversed', $directory );
}