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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* @package moodlecore
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* @subpackage backup-helper
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* @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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/**
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* Implementation of iterator interface to work with common arrays
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*
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* This class implements the iterator interface in order to provide one
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* common API to be used in backup and restore when, within the same code,
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* both database recordsets (already iteratorors) and arrays of information
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* are used.
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*
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* TODO: Finish phpdocs
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*/
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class backup_array_iterator implements iterator {
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private $arr;
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public function __construct(array $arr) {
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$this->arr = $arr;
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}
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public function rewind(): void {
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reset($this->arr);
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}
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#[\ReturnTypeWillChange]
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public function current() {
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return current($this->arr);
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}
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#[\ReturnTypeWillChange]
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public function key() {
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return key($this->arr);
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}
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public function next(): void {
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next($this->arr);
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}
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public function valid(): bool {
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return key($this->arr) !== null;
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}
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public function close() { // Added to provide compatibility with recordset iterators
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reset($this->arr); // Just reset the array
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}
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}
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