tree walk in php

tree walk.php

/**
 * Returneaza rezultatul sub forma unui array flat pe care poti 
 * sa-l transformi usor intr-un string
 */

tree_walk_recursive($src)
{
  $result = array();
  foreach($src as $key => $value)
  {
    if (is_array($value))
    {
      $result[] = $key;
      $result += process_array($value);
    }
    else 
    {
      $result[] = $value;
    }
  }

  return $result;
}