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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 3.9.x will end* 10 May 2021 (12 months).
  • Bug fixes for security issues in 3.9.x will end* 8 May 2023 (36 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
<?php

// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * @package    moodlecore
 * @subpackage backup-helper
 * @copyright  2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

/**
 * Implementation of iterator interface to work without information
 *
 * This class implementes the iterator but does nothing (as far as it
 * doesn't handle real data at all). It's here to provide one common
 * API when we want to skip some elements from structure, while also
 * working with array/db iterators at the same time.
 *
 * TODO: Finish phpdocs
 */
class backup_null_iterator implements iterator {

< public function rewind() {
> public function rewind(): void {
}
> #[\ReturnTypeWillChange]
public function current() { }
> #[\ReturnTypeWillChange]
public function key() { }
< public function next() {
> public function next(): void {
}
< public function valid() {
> public function valid(): bool {
return false; } public function close() { // Added to provide compatibility with recordset iterators } }