1<?php
2/*
3** Zabbix
4** Copyright (C) 2001-2021 Zabbix SIA
5**
6** This program is free software; you can redistribute it and/or modify
7** it under the terms of the GNU General Public License as published by
8** the Free Software Foundation; either version 2 of the License, or
9** (at your option) any later version.
10**
11** This program is distributed in the hope that it will be useful,
12** but WITHOUT ANY WARRANTY; without even the implied warranty of
13** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14** GNU General Public License for more details.
15**
16** You should have received a copy of the GNU General Public License
17** along with this program; if not, write to the Free Software
18** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
19**/
20
21
22class CLimitedSetValidator extends CValidator {
23
24	/**
25	 * Allowed values.
26	 *
27	 * @var array
28	 */
29	public $values = [];
30
31	/**
32	 * Error message if the value is invalid or is not of an acceptable type.
33	 *
34	 * @var string
35	 */
36	public $messageInvalid;
37
38	/**
39	 * Checks if the given value belongs to some set.
40	 *
41	 * @param $value
42	 *
43	 * @return bool
44	 */
45	public function validate($value) {
46		if (!is_string($value) && !is_int($value)) {
47			$this->error($this->messageInvalid, $this->stringify($value));
48
49			return false;
50		}
51
52		$values = array_flip($this->values);
53
54		if (!isset($values[$value])) {
55			$this->error($this->messageInvalid, $value);
56
57			return false;
58		}
59
60		return true;
61	}
62
63}
64