Copy folder recursively in CodeIgniter (PHP)

    function full_copy($source, $target) {
        if (is_dir($source)) {
            @mkdir($target);
            $d = dir($source);
            while (FALSE !== ( $entry = $d->read() )) {
                if ($entry == '.' || $entry == '..') {
                    continue;
                }
                $Entry = $source . '/' . $entry;
                if (is_dir($Entry)) {
                    $this->full_copy($Entry, $target . '/' . $entry);
                    continue;
                }
                copy($Entry, $target . '/' . $entry);
            }

            $d->close();
        } else {
            copy($source, $target);
        }
    }