The RecursiveFilterIterator class

Recursive directory/file listing, filteres ".svn":

<?php

class MyRecursiveFilterIterator extends RecursiveFilterIterator {

 public static $FILTERS = array(
 '.svn',
 );

 public function accept() {
 return !in_array(
 $this->current()->getFilename(),
 self::$FILTERS,
 true
 );
 }

}

$dirItr = new RecursiveDirectoryIterator('/sample/path');
$filterItr = new MyRecursiveFilterIterator($dirItr);
$itr = new RecursiveIteratorIterator($filterItr, RecursiveIteratorIterator::SELF_FIRST);
foreach ($itr as $filePath => $fileInfo) {
 echo $fileInfo->getFilename() . PHP_EOL;
}

?>

I had to create a filter to get values greater than a certain number in a multidimensional array.

Hope someone else finds it helpful:

<?php
class GreaterThanFilter extends RecursiveFilterIterator {
 protected $limit;

 public function __construct(RecursiveIterator $recursiveIter, $limit) {
 $this->limit = $limit;
 parent::__construct($recursiveIter);
 }
 public function accept() {
 return $this->hasChildren() || strlen($this->current()) >= $this->limit;
 }
 public function getChildren() {
 return new self($this->getInnerIterator()->getChildren(), $this->limit);
 }
}
$iter = new RecursiveArrayIterator($array);
$filter = new GreaterThanFilter($iter, 5);

foreach(new RecursiveIteratorIterator($filter) as $key => $value)
{
 echo $value . "\n";
}
?>