Copy folder recursively to another folder, NOT TESTED

copy-test.php

<?php

# 
# UNTESTED
#

$source = __DIR__;
$dest= __DIR__. DIRECTORY_SEPARATOR .'..' . DIRECTORY_SEPARATOR .'copied';

mkdir($dest, 0755);
foreach (
 $iterator = new \RecursiveIteratorIterator(
  new \RecursiveDirectoryIterator($source, \RecursiveDirectoryIterator::SKIP_DOTS),
  \RecursiveIteratorIterator::SELF_FIRST) as $item
) {
  if ($item->isDir()) {
    mkdir($dest . DIRECTORY_SEPARATOR . $iterator->getSubPathName());
  } else {
    copy($item, $dest . DIRECTORY_SEPARATOR . $iterator->getSubPathName());
  }
}