[php] List all the files and folders in a Directory with PHP recursive function

This solution did the job for me. The RecursiveIteratorIterator lists all directories and files recursively but unsorted. The program filters the list and sorts it.

I'm sure there is a way to write this shorter; feel free to improve it. It is just a code snippet. You may want to pimp it to your purposes.

<?php

$path = '/pth/to/your/directories/and/files';
// an unsorted array of dirs & files
$files_dirs = iterator_to_array( new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path),RecursiveIteratorIterator::SELF_FIRST) );

echo '<html><body><pre>';
// create a new associative multi-dimensional array with dirs as keys and their files
$dirs_files = array();
foreach($files_dirs as $dir){
 if(is_dir($dir) AND preg_match('/\/\.$/',$dir)){
  $d = preg_replace('/\/\.$/','',$dir);
  $dirs_files[$d] = array();
  foreach($files_dirs as $file){
   if(is_file($file) AND $d == dirname($file)){
    $f = basename($file);
    $dirs_files[$d][] = $f;
   }
  }
 }
}
//print_r($dirs_files);

// sort dirs
ksort($dirs_files);

foreach($dirs_files as $dir => $files){
 $c = substr_count($dir,'/');
 echo  str_pad(' ',$c,' ', STR_PAD_LEFT)."$dir\n";
 // sort files
 asort($files);
 foreach($files as $file){
  echo str_pad(' ',$c,' ', STR_PAD_LEFT)."|_$file\n";
 }
}
echo '</pre></body></html>';

?>