copy a directory and it's files recursively

copydir.php

<?php

function copyDirectory($sourceDirectory, $destinationDirectory) {
  // determine the files that need to be copied
  $files = new RecursiveIteratorIterator(
    new RecursiveDirectoryIterator($sourceDirectory, FilesystemIterator::SKIP_DOTS)
  );
  foreach ($files as $file) {
    $sourcePath = $file->getPathname();
    $destinationPath = $destinationDirectory . DS . $sourcePath;
    // create the full path
    if (!is_dir(dirname($destinationPath))) {
      mkdir(dirname($destinationPath), 0755, true);
    }
    // finally copy the file
    copy($sourcePath, $destinationPath);
  }
}